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EyeLink System Documentation

1. 15 Figure 4 4 Camera Angled Position for Stabilized Binocular and monocular Recording 16 Figure 4 5 Camera and Illuminator Cables from Desktop Mount cee ceee eee ee ee ee ees 17 Figure 5 1 Typical EyeLink 1000 Arm Mount Installation ccc e cece eee eeeeeeeeeenees 19 Figure 5 2 EyeLink 1000 Arm Mount Components Arm Mount Base Arm Camera and TPS ni i A inet rar senescence ence ecoqes ce seccwen tees T A E E A 20 Figure 5 3 Two Configurations of the Arm Mount Base c cece eceec cece ee eeeeeeneeeeeeeneeeeees 22 Figure 5 4 Rearview of the Arm Mount s Camera top and LCD Monitor bottom 24 Figure 5 5 Cables Emerging from the Bottom of the Arm cc cece cc ccceeeeceeeeeceneeneeeseneees 29 Figure 5 6 Securing the Arm for Disassembling and Transporting ce eee eee eeeeeee eee ees 27 Figure 6 1 Typical EyeLink 1000 Primate Mount Installation eee ce eee ee ee eeeeeeeees 30 Figure 7 System Set up and Caplin secannsninncddcevdocesacasesticuehiaiwitacasneechecdscereeceaeostgaesiacedcbeede 34 Pie Ue ei License Code Enty eae re cere ato ears itki br eeu ae ENEE EE EE EERE EEr erie 36 Fig re S 42 Enable System Commander reiser paarid irnar NEET E A ARR aisig 37 Figure 8 3 Select Partitioning then Manual Partitioning ssssssssssseessssseessssssseeessssseeseses 38 Figure 8 4 Partition Selection and Resize xisc lt cosceveccccsoeneebestseseneaasseeseeasscvacneeec
2. then click Next In the following Warning window click Proceed Host PC Software Installation 2005 2008 SR Research Ltd Custom Partition Type Create Primary Partition 7 New size MB tl 3 hal VOIU me lab el ie Enable surface scar Figure 8 6 Create a Custom FAT 32 Partition 3 Close the Partitioning window by selecting the red X in the top right corner of the window and exit System Commander by clicking Start at the bottom left corner of the screen selecting the Exit option 4 Upon restart the computer will once again automatically run the System Commander application The new EyeLink partition will appear as the icon with two question marks and will be labeled FAT 32 OS as illustrated in Figure 8 8 We will return to deal with this later For now we wish to boot into Windows once again 5 Select the Windows XP partition Windows XP should immediately determine that the disk partitioning has changed and perform a number of system tests to validate the hard drive This is expected and should not be interrupted 6 Windows will reboot once its validation checks have been performed From the System commander menu select Windows XP a second time and boot into the Windows operating system 8 1 4 Copy the Host Application files to the New Partition The next required step is to copy the Host PC application files from the supplied EyeLink 1000 Software CD onto
3. The extender shaft simply fits into the silver cup of the Arm Base or into the cup of another extender Pick up the Arm with one hand on each of the components to minimize its components from swinging The round silver shaft at the bottom of the arm fits into the silver cup at the top of the Arm Base or one of the optional extenders already inserted into the Arm Base simply lower the Arm straight into the cup with cabling off to the side of the base that is closest to Display or Host PCs to which the cabling will eventually be attached Several pieces of double side Velcro ship with the Arm Mount in order to Arm Mount Installation 2005 2008 SR Research Ltd assist users who may wish to wrap the Velcro around the arm components to secure it before lifting This can prevent the arm from swinging while it is being moved The EyeLink 1000 Arm Mount s Camera and LCD Assembly holds an LCD computer monitor the EyeLink 1000 high speed camera in the level position and an infrared illuminator light source These are affixed as a single unit that can be easily lifted using handles that emerge to either side of the LCD monitor Facing the back of the monitor grip the handles and guide the shaft of the tilter mechanism into the hole at the top end of the arm Gently wiggle the assembly until the shaft is fully inserted into the arm Some configurations of the Arm may require weights at the end of the table opposite the Arm Base to offset
4. 1000 High Speed Camera ccce cece eee 23 20 ACNE Tae CADIS sion cacce se aaseadonceedewaeagose E A 24 5 6 Adjusting the Tension Points on the ArM ssssssssssssssssssssssssesrereeee 26 l Arm Mount Adjustments for Monocular and Remote Recording 27 5 8 Disassembling and Transporting the Arm Mount sessssssssssssssssseo 27 2005 2008 SR Research Ltd u 5 8 1 Option 1 Remove Arm and Camera Assembly as a UNIt cccccceeeteneees 28 5 8 2 Option 2 Remove Camera Assembly then Remove the ArmM 1 c 000 29 6 Primate Mount Installation ccscccsssccssscsessesseccnssccsescnsscssesansonseesnssananes 30 6 1 Primate Mount Hardware Considerations cccecceeceeeceeeeeeneeeeeenes 31 Attaching EyeLink 1000 System Cabling cccccccecssesseeeeeeeeeeneeeenenees 34 8 Host PC Software Installation cccccsceseeseeeeeseeeeeeeeneeeeeeneseeneeeneseneseenenes 36 8 1 Installation on a Computer Running Windows 2000 XP 0 36 8 1 1 Install System COMMANAEL cccscccsscecseeenneensueceunesaueesnuessuessenenauessesssanesan 36 8 1 2 Resize Existing Disk Partition cccccscccsecceseesseecsusesauecseessuessneessuessenssaeesan 37 8 1 3 Create the EyeLink 1000 Host Application partition cccssccsseeeseeeeneees 39 8 1 4 Copy the Host Application files to the New Partition ccssccsssesseeseneens 40 Gulso CONJIQUTING the USB KeUDOGIG serres e 42 8 1 6 Trans
5. EyeLinkDevK Kit_ exe program by double clicking the icon Follow the instructions from the InstallShield Wizard to install the display software Wait for the InstallShield Wizard to finish and click FINISH to complete installation Display PC Software Installation 2005 2008 SR Research Ltd 9 1 2 Installing the IO Port Access Driver For proper access to IO ports i e for TTL signalling on the Display PC an access driver must be installed The EyeLink 1000 Windows API relies on this driver for IO port access so installation is mandatory 1 To install the driver click Start Programs SR Research EyeLink Utilities PORTOSNT 2 Follow the on screen instructions 3 Reboot your computer when prompted 9 1 3 Installing the EyeLink Data Viewer and Experiment Builder Software The EyeLink Data Viewer and Experiment Builder software are optional Windows applications for the EyeLink eye tracker If you did not purchase these options this section may be skipped or you may install the software to evaluate in demo mode 1 Insert the EyeLink 1000 Software CD 2 Open the Display PC Installation Windows gt EyeLink Data Viewer folder 3 Run the EyeLinkDV_ exe program by double clicking the icon 4 Follow the instructions from the InstallShield Wizard to install the software 5 Wait for the InstallShield Wizard to finish and click FINISH to complete installation 6 Open the Displa
6. changed if there are any reflection issues Please follow Section 10 1 Customizing Your PHYSICICAL INI Settings to modify the PHYSICAL INI file settings Tower Mount Installation 2005 2008 SR Research Ltd 4 Desktop Mount EyeLink Remote Installation Please follow the steps below to set up the EyeLink 1000 Desktop Mount Figure 4 1 illustrates adjustable parts of the EyeLink 1000 Desktop Mount Camera Screw Illuminator Cable High speed Camera Lens Cap N WN Data Cable 1 Lock Knob Figure 4 1 EyeLink 1000 Desktop Mount Components 4 1 Mounting the EyeLink 1000 High Speed Camera The EyeLink 1000 Desktop Mount can be configured to track eye movements up to 2000 Hz monocularly or 1000 Hz binocularly with the 2K option The angle of the high speed camera and the position of the camera screw should be adjusted differently depending on the mount type you plan to use Each mount type works optimally with different camera lenses see Table 1 While the 2K camera option works with all lenses the EyeLink Remote option works best with only the 16 mm lens Desktop Mount EyeLink Remote Installation 2005 2008 SR Research Ltd Camera Cap must be on Hole Camera Screw EyeLink 1000 High speed Camera Desktop Optics Stand rear view Figure 4 2 Desktop Mount Camera Adjustment Follow the steps below to mount the high speed camera for monocular tracking or to use the EyeLink
7. does the lifting so that the table is not merely lifted off the floor Some wiggling of the Arm and its shaft may be required to make it come free from the Arm Base s holder cup Once free the unit may feel top heavy so be sure to have a strong grip Gently lower the unit Arm Mount Installation 2005 2008 SR Research Ltd onto an awaiting soft foam surface such as the inside of a hard shell case molded for transport and storage of the Arm Mount 5 8 2 Option 2 Remove Camera Assembly then Remove the Arm Fully extend the Arm and ensure there is nothing preventing the upwards lifting of the Camera and LCD Assembly One person will have to steady the Arm and put downwards pressure on the top of the Arm while the other person grabs onto the monitor handles and lifts upwards Some rocking of the Monitor Assembly back and forth to dislodge it may be necessary Once free of the cup holder the Camera and LCD Assembly can be placed on a hard surface with the bracket making contact with the table At this point the Arm can be removed from the Arm Base with one person applying downward pressure on the table while the other person lifts up on and wiggles the Arm free of the Arm Base Arm Mount Installation 2005 2008 SR Research Ltd 6 Primate Mount Installation The EyeLink 1000 Primate Mount is a metal bracket that contains an illuminator for use with the EyeLink 1000 camera The camera is affixed to the top of the mount pointing do
8. is N mm a oak SR ie eae ed ae fel Figure 8 9 Select Description and Icons Timeouts and default OS Riess PS Hardware H 5 pioi XP Micros ee General Specific OS options Password security File management Order Add and Remove Description and icons N Assistance and Help E Ad Ss Ses SEN cos Seal ee prn Down Lop Bottom Add Remove Figure 8 10 Order Add and Remove 4 Click OK to finish Then from the Settings window select Order Add and Remove as illustrated in Figure 8 10 5 From the Order Add and Remove window remove all icons except for the Windows XP and EyeLink by highlighting each one and clicking the Remove button as in the right side of Figure 8 10 6 Highlight the EyeLink OS and click the Top button to make EyeLink the default partition 7 Click OK to finish and close the Order and Remove window 8 1 8 Automated boot into the EyeLink 1000 Operating System 1 If you would like System Commander to automatically boot into the EyeLink partition click on Timeouts and default OS from the Settings window Host PC Software Installation 2005 2008 SR Research Ltd 2 Check the box beside Auto select timeout and set the number of seconds for System Commander to wait before booting the default operating system Indicate the default OS in the Default OS selection If you followed the earlier instruction EyeLink
9. is recommended that a straight ruler be used Turn on both the EyeLink 1000 Host and Display PC and run track exe on the Display PC Type in TEST for the saved EDF file name and click the OK box Press Enter on either keyboard twice Final Installation Steps 2005 2008 SR Research Ltd On the Host PC go to Set Options on the screen and select mouse simulation mode This will now let you use the Host PC mouse to simulate eye movements Check that the Calibration Type is set to a nine point pattern Press Previous Screen button to return to the Camera Setup screen Now press C or the calibration button A calibration dot should appear on the middle of the display monitor Use this dot as the central reference point for all horizontal and vertical PHYSICAL INI measurements In the screen_phys_coors measure the distance from the center of the dot to the end of the active part of the monitor screen Start on the left side S1 and follow round to the top S2 right S3 and bottom S4 This is illustrated in Figure 9 1 Black or grey non active part of screen Figure 10 1 Measuring screen_phys_cords The new settings for the screen_phys_coords in the PHYSICAL INI file are determined by screen_phys_coords 1 2 3 4 10 1 2 Measuring screen_distance Please follow the steps below to measure the screen_distance values For EyeLink Remote eye tracker keep the default screen_distance
10. it is minimally obscuring the IR illuminator and the camera Figure 5 4 Rearview of the Arm Mount s Camera top and LCD Monitor bottom 5 5 Attaching the Cables Integrated into the Arm Mount is the cabling required for the EyeLink 1000 system and the computer monitor camera and LCD monitor power cables monitor audio cable SVGA video cable and the camera data cable After assembling the Arm Mount components inserting the Arm into the Arm Base and attaching the camera all of the cables need to be connected Arm Mount Installation 2005 2008 SR Research Ltd For all cables emerging from the Arm location descriptions assume a view of the Camera and LCD Assembly from the back underside of the monitor see Figure 5 4 bottom Guide the cables to the side of the camera and illuminator support bracket to which the cable will eventually be attached this will prevent the cable from binding against the bracket when the Arm is twisted in various directions Follow these steps 1 First let s deal with cables attached to the high speed camera Figure 5 4 top e If not already connected before affixing the camera connect the data cable to the interface on the back of the camera that is housed within the Camera and LCD Assembly Tighten the screws by thumb or use a slotted screwdriver to tighten Attaching this cable before attaching the camera to the assembly may be easier for some users e Insert the round EyeLink 1000 pow
11. make a new partition will normally be the largest chunk within the selected disk Highlight this partition as illustrated in Figure 8 4 left and then click on the Resize icon 3 In the New size MB field of the Resize Partition dialog box Figure 8 4 right enter a value that is 5120MB less than the indicated Current Size For example if the original disk size is 76253 MB you should put 71133 MB in the new size field 4 Press Next to do the resizing of the drive System Commander may adjust the partition size you entered slightly This is expected and is not an issue Create Partition PEA E Back Next Figure 8 5 Partition and Partition Type Selection 8 1 3 Create the EyeLink 1000 Host Application partition 1 From the Partitioning window select the newly formed Free space highlighted in gray which will appear on the top of the cylindrical drive diagram as illustrated in the left side of Figure 8 5 Click the Create icon which will bring up the Create Partition window 2 Select Primary and click Next which will bring up the Create Primary Partition window as illustrated in the left side of Figure 8 6 Create a Custom FAT 32 PartitionIn the Volume label field type EYELINK and ensure that the Custom Partition Type box is checked Click Next to bring up the Custom Partition Type window as illustrated in Figure 8 6 right and select FAT 32
12. monitor and the top of the illuminator should be as close to the lower edge of the visible part of the monitor to maximize the eye tracking range If you are using the chin rest supplied by SR Research Ltd please check whether the table is suitable for mounting the chin rest the table used should have a minimum thickness of 1 8 cm and a maximum thickness of 8 0 cm Loosen the table clamp by turning the knob counterclockwise place the table clamp fully onto the table and then tighten it clockwise see Figure 3 2 Check that it is firmly secured by gently attempting to rock the table clamp base free If the table clamp base wobbles tighten it further Next place the forehead rest over the chinrest poles and tighten the knobs at the desired height Please check that the chinrest is horizontally centered with the monitor Adjust the tilt of the monitor so that the display is tilted up slightly The tilt can be changed if there Desktop Mount EyeLink Remote Installation 2005 2008 SR Research Ltd are any reflection issues Please follow Section 10 1 Customizing Your PHYSICICAL INI Settings to modify the PHYSICAL INI file settings 4 3 EyeLink Remote Hardware Adjustment for the Desktop Mount The default version of the EyeLink Remote uses the Desktop Mount and an EyeLink 1000 High Speed Camera programmed for Remote viewing Users who are exclusively interested in installing the EyeLink Remote should first follow installation inst
13. power supply and monitor cables Continue on to the section pertaining to the mounting option that you are installing Tower Mount 4 Tower Mount Installation Desktop Mount 5 Desktop Mount Installation Arm Mount 6 Arm Mount Installation Primate Mount 7 Primate Mount Installation Host PC Hardware Installation 2005 2008 SR Research Ltd 3 Tower Mount Installation Please follow the steps below to mount the EyeLink 1000 Tower onto the table and to install the camera Figure 3 1 illustrates adjustable parts on the EyeLink 1000 Tower Camera Power Cable gg CameraLink Cable a f f Focusing Arm Illuminator Cables Eye Selection Knob Mirror Angle Adjustment Knob Forehead Rest ower Height Adjustment Knob Padded Chinrest Chinrest Height Adjustment Knob Chinrest Position Adjustment Knob able Clamp Figure 3 1 Components of EyeLink 1000 Tower Tower Mount Installation 2005 2008 SR Research Ltd 3 1 Mounting the Tower to a Table Important The head support Tower should only be held by the vertical posts and should NEVER be held by the mirror or the components attached to the mirror We recommend you have somebody available to assist you mounting the head support Tower onto the table to prevent damages to the IR mirror or other parts of the Tower Check whether the table is suitable for mounting the EyeLink 1000 Tow
14. restart Windows then install the network card driver and the TCP IP protocol again Display PC Software Installation 2005 2008 SR Research Ltd To test the network start the EyeLink 1000 tracker and start the track application from Start gt Programs gt SR Research gt EyeLink gt Track The link should connect and the screen will display instructions This application allows you to practice participant setup and test the system as described in the EyeLink 1000 Installation Guide If the message Cannot initialize link appears the TCP IP protocol or crossover cable is are not properly configured If the connection times out it is probably due to the network card being improperly configured or because the network cable is not connected to both PCs 9 1 6 System and Programming Tools Required The experiment templates in this package were developed using Microsoft Visual C 6 0 Other 32 bit C and C compilers may be used but you will have to translate the included make files to rebuild the experiments This release of the Windows Display Software does not supply examples for C programming Display PC Software Installation 2005 2008 SR Research Ltd 10 Final Installation Steps This section lists the final installation steps to fine tune your EyeLink 1000 installation 10 1 Customizing Your PHYSICICAL INI Settings The EyeLink 1000 PHYSICAL INI file at C ELCL EXE directory contains settings that
15. tell the system about physical characteristics of your setup that are important for proper visual angle and eye velocity calculations Any time you change your physical configuration you should verify that the PHYSICAL INI still accurately reflects your setup The parameters in the PHYSICAL INI file that change depending the physical setup of your system are screen_phys_coord specifies the physical distance of the four edges of the presentation surface to the center of the screen The order of these measurements is left top right bottom and are specified in millimeters For the default case of a 19 monitor this parameter will read screen_phys_coords 178 0 135 0 178 0 135 0 screen_pixel_coord specifies the resolution of the display surface Normally the EyeLink 1000 API at the start of an experiment programmatically adjusts this so you do not need to manually change this setting If the EyeLink 1000 programming API or Experiment Builder is not being used then the default value for this parameter will apply The default value reads screen_pixel_coords 0 0 0 0 1024 0 768 0 screen_distance specifies the distance to the top and bottom of the display surface from the participant s eye This setting is not applicable to EyeLink remote tracker The default values read as following screen_distance 600 660 10 1 1 Measuring screen_phys_coords All screen physical coordinate measurements are in millimeters It
16. the camera lens The EyeLink configuration files may be modified to flip the camera image as required to match any mirrors or orientation of the camera While the camera will accept most C mount lenses the performance of most lenses is rather poor in infrared with blurry or dark images resulting from lens coatings or non optimal design The standard camera configuration uses a 25mm focal length lens selected for high resolution and excellent IR performance A similar 16mm focal length lens is available which will allow the camera to function properly when closer to the eye As with other EyeLink 1000 mounting options the camera requires a 12V power anda supplied 60mm 24 cable is connected from the camera to power the illuminator module A supplied ferrite choke on this cable must be on the end near the camera Finally a high speed camera cable is connected from the back of the camera to the tracker host computer To summarize the above points when installing the primate system please keep the following points in mind e The camera should not be too close to the eye as the pupil and corneal reflection must be contained within the tracking window e Bringing the illuminator closer to the eye will reduce noise but may cause discomfort and increase pupil erosion by the corneal reflection e Placing the illuminator too far from the eye will result in a dark image and noisy data Primate Mount Installation 2005 2008 SR Re
17. the newly created EyeLink partition 1 From Windows start Windows Explorer If you have removed the EyeLink 1000 Software CD from your CD drive reinsert it Navigate to the Host PC Installation Host Partition folder 2 Copy all of the files in this folder to the top level of the newly created EyeLink FAT 32 drive often E The EyeLink CD has copy of all the files required for Host PC Software Installation 2005 2008 SR Research Ltd the Host partition including a required camera specific SCD file Hence the CD is required and it is a good idea to Keep the EyeLink 1000 Installation CD ina safe place In some cases it Windows may hide certain operating system files i e files ending in INI or BAT If you do not see a BAT file when you view the contents of the Host Partition folder you can set Windows to see these files using the following steps i Select the Tools Folder Options menu in Windows Explorer ii Select the View tab iii Select the Show hidden files and folders option under Hidden files and folders iv Ensure Hide extensions for known file types is not selected v Uncheck the Hide protected Operating system files as illustrated in Figure 8 7 Folder Options k 2 x General View File Types Offline Files Folder views You can apply the view such as Details or Tiles that oe you are Using for this folder to all folder
18. 1 From the Start menu select the Control Panel 2 Click on the Network and Internet Connections icon and then select the network Connections icon Check the list of installed components to make sure a network card is installed If not install a driver for the card 3 Double click on the network card icon that represents the network card that will be connected to the EyeLink 1000 Host PC 4 Select the properties button 5 Check that TCP IP is displayed in the list of components and that it is checked If not press the checkmark beside the option 6 Select the TCP IP component for the Ethernet card connected to the eye tracker PC then click on the Properties button 7 Select the Use the following IP address radio button Enter the IP address of 100 1 1 2 The last digit of the IP address can increase for other computers on the EyeLink network Enter the subnet mask of 255 255 255 0 Leave the default gateway and other setting blank 8 Click on OK to return to the Properties dialog Click OK again to save your changes Click Close to exit from the network card dialog If connectivity error messages appear ensure the supplied Ethernet crossover cable connects the configured Ethernet port of the Disply PC to the supplied network card of the Host PC Alternatively you may need to reinstall the network card drivers To be safe open the Network dialog and remove all components
19. Arm and the Camera and LCD Assembly the Arm Base see Figure 5 2 and Figure 5 3 must be affixed to a sturdy table The Arm Base can accommodate tables up to a thickness of 75 mm 7 5 cm 2 5 at a depth of 18 mm to 65 mm 1 8 65 cm 1 25 The footprint of the Arm Base above the table is 160 mm wide x 140 mm deep 16 cm or 6 4 X 14 cm or 5 2 and requires further clearance for the arm to swing in any direction The minimum depth for mounting on the table underside that the system can work with is an 18 mm ledge in which case the maximum table thickness is 60 mm 6 cm or 2 3 8 The Arm Mount can displace the Camera and Monitor Assembly from 11 cm below the surface level of the table to which it is mounted to 23 cm above it This places the Arm Mount Installation 2005 2008 SR Research Ltd bottom of the monitor from 2 cm below the table surface to 32 cm above it Two arm extender units are shipped with the mount that can displace these measurements upwards by a further 6 15 or together 21 cm for a dynamic range of 11 to 44 cm or considering the bottom of the display 2 cm to 53 cm The arm can extend a distance of 75 cm from the base in any direction with a minimal extension of 48 cm The desired viewing level of the participant should be combined with the above values when considering the table on which to mount the Arm Base If the participant viewing level is greatly below the tabletop surface then a lower tab
20. EyeLink Installation Guide For EyeLink Models EyeLink 1000 EyeLink 2000 EyeLink Remote Tower Desktop Primate and Arm Mounts Version 1 4 0 SR Research qy 0 gt C EyeLin Copyright 2005 2008 SR Research Ltd EyeLink is a registered trademark of SR Research Ltd Mississauga Ontario Canada Read instructions before use Entela Safety Mark Compliance of this product with UL 60950 34 Edition CSA C22 2 No US 60950 00 CAN CSA is certified by Entela an independent testing body C Certified CLASS 1 LED DEVICE IEC 60825 1 Ed 1 2 2001 CONTACT ADDRESS SR Research Ltd 5516 Main St Osgoode Ontario Canada KOA 2WO Fax 613 482 4866 Phone 613 826 2958 Toll Free 1 866 821 0731 Email support sr research com http www sr research com 2005 2008 SR Research Ltd Table of Contents 1 AVEO CNC Ci rocoto er ce os ee sates a ac vases E 1 1 1 Sliceested Equipment Vay OG erases EE ssenmensstentes 2 1 2 Pre installation CMCC KIS ts scocaspeneradewaceanseneteeeannpeesessenssassembaes ER 3 1 3 Compaler o OC MCA Oe eran pare vreau ee ote ami pena panna ieee eee 5 kad A eC a E E 5 Le DP TO a E E ere erent ene 5 2 Host PC Hardware Installation cccccccseseceeeseeeeeeeeeeeeeeeeeeeeneneneseenensnensees 6 2d UOPCE en E E E E E dacs einneaeeeeseageees 6 2 2 Host PC Hardware Installation serisscisissrrresscniaccorrrnirndirerarrise iir karokisa 6 2 2 1 Setting Up the Ho
21. GE Pasiti Video Overlay File Sample Filter Link Analog Filter Analog Output Recording Data View Data ofi Rau HREF Gazt Record View Plot Figure 8 12 Host PC Set Options Screen Image Thresholds Cam era Setup Auto Threshold TCP IP Link Open Pupil Corneal 7 Screens al E i i Exit Setup kal E Off line Tracking Mode SSS Pupil CR i Output Record Sanple Rate x Set Options EEO je oe Dp Pupil Tracking S v Centroia EAE Calibrate IMAGE NOT Image Display AVAILABLE Validate Crosshairs Threshold Coloring __Image gt Renote s Eue Pupil 93 EYE NOT Z z CR 221 AVAILABLE Use Search Limits PUPIL OK gt SS CR OK Mouse Autothresh Camera Position E Right Camera Position Detect Figure 8 13 EyeLink 1000 Camera Setup Screen Host PC Software Installation 2005 2008 SR Research Ltd 8 3 EyeLink Data Storage All EDF files that are created during the recording phase of each experiment will be saved to C ELCL DATA This is the default directory into which EyeLink recording files EDF are stored If the DATA drive cannot be found all EyeLink data files will be saved into the C ELCL EXE directory It is recommended to periodically boot into the Windows 2000 XP operating system to back up your data Editing the parameters in the Data ini file can change the path into which the data is stored Host PC Software Installation 2005 2008 SR Resea
22. HYSICAL INI located on the Host PC This can be done either from the Windows partition or from the EyeLink partition 10 1 3 1 Windows Partition Boot into the Windows partition find the EyeLink drive Go to the ELCL EXE directory and select the PHYSICAL INI file Uncheck the read only property of the file Modify the file and save the change 10 1 3 2 EyeLink Partition Reboot the Host PC into the EyeLink partition Do not press T when in the DOS prompt before running the EyeLink 1000 GUI From the command prompt type the following CD C ELCL EXE ATTRIB R PHYSICAL INI EDIT PHYSICAL INI To enter the new values follow these steps 1 Go to the screen_distance parameter 2 Remove the default values for this command 3 Enter new values Final Installation Steps 2005 2008 SR Research Ltd 4 Repeat steps 1 3 for screen_phys_coords 5 Save changes and exit the file Finish by typing the following at the command type ATTRIB R PHYSICAL INI Final Installation Steps 2005 2008 SR Research Ltd
23. If you cannot locate this file please contact SR Research Ltd Click on the Set Options button and ensure that the Mouse Simulation button is deselected as in Figure 8 12 the button will not be solid in color Next click on the button marked Setup Camera and if all is working well you should see that the camera is transmitting images to the Host application A screenshot of the large field of view of the EyeLink 1000 camera Tower Mount is illustrated in Figure 8 13 Host PC Software Installation 2005 2008 SR Research Ltd Please consult the EyeLink 1000 User Manual for tutorials on setting up the camera calibration and validation Bur first proceed with the Display PC setup in the following chapter Offline Link Closed Screens Output Help F1 NOT n F macke Eye CE a IMAGE NOT 0 gt Copyright 2001 2007 SR Research Ltd AVAILABLE eae 3 EyeLink is a registered trademark of SR Research Ltd Mississauga Ontario Canada EyeLink Figure 8 11 Host Application in Offline Mode at Startup Calibration and Validation ELCL Configuration Calibration Type ler Select Config Pacing Interval 1 Set Options Link Closed Screens Camera Setup Help F1 Monocular File Data Contents Conf iguration ouse Sim Pupil Size Data AREA IAMETER F Events and Data Processing i Eke AO Load Defaults Eye Event Data Gaze HREF x Saccade Sensitivity NOF 11
24. Link 1000 Tower EyeLink 1900 Camera Viewing from Top Screw Hole Figure 3 5 Views of the EyeLink 1000 Tower and Camera Tower Mount Installation 2005 2008 SR Research Ltd Illuminator Cables Camera Power Cable Figure 3 6 Camera and Illuminator Cables on EyeLink 1000 Tower After the camera is mounted onto the Tower connect the EyeLink CL power supply that was provided with your system to the power connector on the left side of the EyeLink CL camera Connect the two illuminator cables that come out of the left side of the head support Tower to the left side of the EyeLink CL high speed camera plug the cable marked with R to the port marked with R and the one with L to the remaining port 3 3 Adjusting Head Rest Components The height of the forehead and chinrest can be adjusted by loosening the knobs on both sides of the Tower After sliding the chinrest to the desired position re tightening the knobs e Set up the monitor and chinrest so that the chinrest is centered on the monitor and the monitor is horizontally aligned with the chinrest HINT measure from the left and right knobs on the chinrest to the left and right sides of the top of the display area of the monitor these should be equal e Adjust the tilt of the monitor and height of the forehead rest Ideally this should have the top of the display at about the same height as the forehead rest and the display tilted up slightly The tilt can be
25. Remote the Camera Level position see Figure 4 3 1 Place the Desktop Mount on the table Turn the 35 mm camera lens into the thread on the camera See Table 1 for recommended lens usage 2 Move the camera screw to the top end of the slot 3 Hold the camera with its elongation parallel to the table and level with the top of the mount align the hole on the camera to the camera screw on desktop mount and then tighten the camera screw Camera screw should be held at the top end of the slot IR Iu minator Camera Angle Adjustment Camera should be Monocular Camera Orientation parallel to the table Fan Tilt Adjustment Figure 4 3 Camera Level Position for Remote and Stabilized Monocular Recording Desktop Mount EyeLink Remote Installation 2005 2008 SR Research Ltd Lens Tower Mount Desktop Mount Desktop Mount Arm Mount EyeLink Remote Aperture Size e Level Camera Angled BE Level a Level 16 mm 25 mm ae closer i E E IDEAL distance IDEAL distance Long Arm suggested suggested Possible further Possible 35 mm IDEAL distance further distance suggested suggested Table 1 Recommended Lens Usage For binocular tracking see Figure 4 4 1 Place the Desktop Mount on the table Turn the 25 mm camera lens into the thread on the camera See Table 1 for recommended lens usage Move the camera screw to the bottom end of the slot 2 Hold the camera with its elongation forming a 45 deg
26. W cm2 at the eye which is comfortable for extended viewing with a reasonable size corneal reflection The EyeLink CL illuminator bracket is designed to provide a rigid connection between the illuminator module and the camera This is essential for pupil CR difference tracking mode as any motion of the illuminator relative to the camera will appear as eye rotation artifacts This is also true to a lesser extent for pupil only eye tracking mode if the CR is positioned within the pupil itself The camera attaches to the bracket with a clamp knob and 3 indexing bumps for positive alignment The camera may also be attached to the bracket rotated by 180 to change the side of the bracket the lens is on The illuminator block attaches to the bracket with a single clamp Knob in a slot allowing the distance from the illuminator to the eye to be changed to control brightness and CR reflection size and the illuminator to be rotated to maximize illumination The LEDs used in the illuminator were selected for even illumination so angling the illuminator is not critical The illuminator consists of an array of 24 infrared LEDs mounted in a heatsink block The block also allows for mounting of the assembly via an M8 thread in each side It is important that the illuminator be mounted to a substantial piece of metal to help cool the illuminator as this will enhance light output The IR LEDs emit at 910 nm which was selected for reduced visibility in dark a
27. and software must meet certain specifications due to the nature of the operating system that the EyeLink Host application runs under As computer technology is rapidly changing only systems tested and approved by SR Research Ltd can be guaranteed to work In the interest of not instructing our customers to purchase computer equipment only to encounter difficulties with their installation the reader is directed to consult the web page http www sr research com compatibleHostPCs html for a list of systems known to be compatible and accurate when running the EyeLink hardware and software 1 3 2 Display PC The specifications for the PC that will be used for system calibration and experiment presentation depend greatly on the type of experimental paradigms that the EyeLink 1000 will be used for For example gaze contingent paradigms generally require more computing power than simple cognitive paradigms because the computer display needs to be updates as quickly as possible Similarly video intensive experiments may need faster hard disks to support the transfer of large video file data to the computer in a timely manner The following requirements are suggestions for a Display PC configuration that should be able to handle most experimental requirements Please contact a SR Research Ltd Representative if you have specific questions about your situation and would like our input e gt 2 0 GHz or faster processor Pentium 4 or AMD e 80 GB ha
28. bolt through without using oil if possible To install the Arm Base use the large supplied L shaped Allen wrench to unscrew the black bolt that has a hexagonal opening in its end It will have to be unscrewed enough to allow the shim perched on its end to fit under the table edge as the shim will eventually be the point of contact between the bottom side of the Arm Base and the underside of the table The large underside of the Arm Base will be the point of contact with the Table s top Place the base in position covering the biggest surface area of the table as possible and with the shim as deeply under the table as possible With the center hole of the shim on top of the bolt begin to tighten the bolt while holding the Arm Mount Installation 2005 2008 SR Research Ltd shim so that it does not fall off of the bolt Pressure will eventually hold the shim in place Tighten as securely as possible Figure 5 3 Two Configurations of the Arm Mount Base 5 3 Assembling the Arm Components Once the Arm Base has been secured to a sturdy tabletop it is time to insert the Arm into the Arm Base At this point you may wish to add one or both of the Arm Extenders that were included with the system 2 5 and 6 extenders 6 cm and 15 cm as these raise the overall height of the Arm Mount Note that using an extender will also raise the lowest point that the Arm Mount s monitor can reach as they simply displace the entire unit vertically
29. dapted conditions compared to typical 880 nm LEDs The LED array is safe for viewing by humans at any distance it passes the Primate Mount Installation 2005 2008 SR Research Ltd IEC 60825 1 standards by a factor of 3 at any distance however distances of gt 160mm from the eye resulting in irradiance of lt 1 2mW cm2 are recommended for long term viewing comfort The camera mounts to the top of the bracket using a clamp knob M8 thread and a set of dimples on its front This ensures that the camera cannot vibrate independently of the illuminator The camera also has 5 mounting holes on its sides 2 near the center of the camera s sides and 3 aligned with the optical center of the lens and sensor These holes take a standard 1 4 20 screw used on tripod and camera mounts However the hole at the lens end of the camera may not be robust enough to mount the camera with the illuminator bracket attached especially if vibration is present It is recommended that the illuminator bracket be mounted to the head restraint assembly using the 3 holes supplied near the camera mount The long side of the bracket should be oriented away from the subject to maximize head clearance Once the bracket is mounted the illuminator and camera may be attached and re oriented as required The camera may be installed with the lens on the left or right side of the bracket and the illuminator fitted as required to place the connector on the side opposite
30. e to connect EyeLink CL camera to PCI frame grabber card 7 Ethernet crossover cable to connect Host and Display PC together 8 EyeLink 1000 Software CD Please note that each EyeLink 1000 system loads a camera specific SCD file and therefore you should use the EyeLink 1000 Installation CD that comes with your system 9 One ROM DOS Boot CD labeled ROM DOS Boot CD 10 One System Commander Boot CD labeled System Commander Boot CD 11 USB Button Box to be attached to the host computer and USB extension cord You will also need the following components that may not have been provided with your EyeLink 1000 base system 1 A Host PC that meets the minimum required specifications For guaranteed success consult SR Research for a list of Dell systems that have been tested and found compatible Minimum requirements are listed in section 2 1 1 The Host PC may have been purchased with your base system 2 A Display PC that meets the minimum required specifications These specifications are listed in section 2 1 2 3 Any tools required for accessing your Host PC s case usually a Phillips screwdriver will do If an analog card option was purchased you should also have 1 Full length PCI Analog card 2 Analog breakout board 3 Cable to connect analog PCI card to breakout board Introduction 2005 2008 SR Research Ltd 1 3 Computer Specifications 1 3 1 Host PC The PC that will host the EyeLink hardware
31. ensure that the table is deep enough to accommodate both the monitor especially for a CRT monitor and eye tracker For a 21 CRT monitor with a 30 viewing angle the minimum table depth should be about 130 cm e Avoid windows or other bright light sources that could cause reflections on the host and display monitors The grey walls highlighted in Figure 1 1 are locations where bright light sources will cause reflections Introduction 2005 2008 SR Research Ltd e Supply sufficient light in the room The best way to light the room is with ceiling mounted fluorescent lights above and no more than 2 meters behind the computer monitors Painting the walls light colors or white will maximize ambient light as well e Avoid environmental distractions Be sure the room can be kept quiet that no posters or other items are on the wall seen by the participant and so on It is also a good idea to make sure the participant cannot see the host monitor without turning their head discourage this e Supply a comfortable stable chair for the participants It should not wobble or move when sat in and the back should be firmly attached to the seat springiness encourages some participants to rock forwards and back A chair with a concave back also discourages shifting of the body as does a high back The top of the chair back should be just below the shoulders on an average participant Finally make sure participants can enter and leave the cha
32. er the table used should have a minimum thickness of 1 8 cm and a maximum thickness of 8 0 cm Figure 3 2 Clamping Chinrest to Table Loosen the table clamp by turning the knob counterclockwise then place the table clamp fully onto the table and then tighten it clockwise see Figure 3 2 Check that it is firmly secured by gently attempting to rock the table clamp base free If the table clamp base wobbles you will have to tighten it further Tower Mount Installation 2005 2008 SR Research Ltd Figure 3 3 Placing and Adjusting Tower Mount The camera mount is quite heavy and cumbersome to move For safety purposes it is recommended that two people participate in setting up this piece of the equipment One person can support the weight of the camera mount while the other lines the spring loaded clamps with holes in the Tower poles When released the clamps secure a peg into the holes of the Tower poles thereby supporting the weight of the camera mount Gently pick up the camera mount with the mirror facing away from you It is recommended that you hold the camera mount near the Tower height adjustment knobs as shown in the left side of Figure 3 3 Be careful not to scratch or touch the mirror Now line the mount up with the vertical posts and gently lower it into position The camera mounting should rest about inch into the hole Once the Tower Mount is placed onto the Tower poles you will need to adjust its height by pul
33. er supply cable to the power connector on the right side of the camera e Ensure that the two illuminator cables are plugged into the side of the EyeLink CL high speed camera placement is not important These cables are present on the Camera and LCD Assembly and do not emerge from the arm 2 The remaining cables emerging from the Arm connect to the LCD monitor as follows Figure 5 4 bottom e Insert the phono plug connector into the audio input jack on the bottom centre of the LCD monitor of the Camera and LCD Assembly e Connect the SVGA cable to the SVGA input on the right of the LCD monitor Tighten the screws by thumb or use a slotted screwdriver e Connect the 3 prong power chord into the LCD monitor power input on the left side of the monitor Figure 5 5 Cables Emerging from the Bottom of the Arm Arm Mount Installation 2005 2008 SR Research Ltd 3 The following cables coming out of the bottom of the arm shown left to right in Figure 5 5 are to be connected as described below Extension cables are supplied as indicated in the text The first cable is the camera high speed data cable and goes to the Host PC the next two cables go to outputs on the Display PC and the final two go to a power source e Connect the thick camera data cable emerging from the bottom of the arm to the EyeLink card on the Host PC Be sure to tighten the thumbscrew connectors or use a flat screwdriver to make a tight connect connectio
34. fer the System to make the EyeLink Partition Bootable 42 8 1 7 Organize System Commander s OS Selection MCNnw ccccccsecsseeeneees 43 8 1 8 Automated boot into the EyeLink 1000 Operating System cccc000 44 8 2 Testing the Host PC Installatioii 4 2isc00c2enia tie creed ceniendlantetensmiwerceeretade 45 8 3 EyeLink Data Storage scirecrrreesreiinin kr EErEE rN NE R AE RNEER EREEREER 47 9 Display PC Software Installation cccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneeeseenees 48 9 1 Windows Installation cece cece eee e ene ene eeeeeeeeeeeeseneeeeeeeeeeneneens 48 9 1 1 Installing the EyeLink 1000 Experiment Programming Kit c 1scc000 48 9 1 2 Installing the IO Port ACCESS DWT ccccsccsseecensecsueenusetaeessueesausssnsesauessnaes 49 9 1 3 Installing the EyeLink Data Viewer and Experiment Builder Software 49 9 1 4 USB License Key INStallation 1 ccccccccsccccsneeccneeeeneeecaesesaneeseaeeesnenesaeeesanes 49 9 1 5 Setting up EyeLink 1000 Network Connection ccccccecsseecnesecnsesanesenees 50 9 1 6 System and Programming Tools Required cccccccceeeeeneeenneeecseseseensenes 51 10 Final Installation StS iivciceissicciscccvnssscccsiaencensticsencencctccesseseaandesanttansccaxvededencins 52 10 1 Customizing Your PHYSICICAL INI Settings eee eee ee 92 10 1 1 Measuring SCrECN_PNYS_COOTS ccseccsscccseeceeenneessuesseesauesseessuessnnesaes 52 10 1 2 Measuring screen_dis
35. h joint can have the tension adjusted so make it require more or less force to move Loosening a joint too much may make it so that it does not stay in the desired position so tighter tension is generally preferred Tension adjustment points are indicated by hexagonal screws on Arm Mount Installation 2005 2008 SR Research Ltd the Arm and can be adjusted using the Allen wrenches supplied Recall that all hexagonal screws on the Arm are in Imperial units 5 7 Arm Mount Adjustments for Monocular and Remote Recording The EyeLink 1000 Arm Mount can be used for highly accurate monocular recording with head stabilization in which case the Arm Mount is merely an alternative to the desktop or Tower Mount options or in Remote mode without head stabilization In either case the EyeLink 1000 requires that some information about the physical setup be pre configured in an initialization file PHYSICAL INI Regardless of the mode of recording PHYSICAL INI setup for the Arm Mount is identical to the Desktop Mount and is covered in Section 10 1 Customizing Your PHYSICICAL INI Settings Keep in mind when using the Arm Mount however that for highest accuracy the viewing distance specified in PHYSICAL INI should be used with the Arm Mount even though the Arm may be dynamically adjusted on a per user basis Arm Mount users should proceed to Section 8 Software Installation 5 8 Disassembling and Transporting the Arm Mount The EyeLink 1000 Arm Mo
36. ir easily as the chair will be close to the table with the Display PC monitor e Set up the Display PC monitor and chair so that the participant s eyes will be ata distance from the monitor of about twice the width of the display area of the Display monitor This distance gives a display area of 28 by 22 This is the ideal distance for both calibration accuracy and tracking range This standard distance is assumed in all EyeLink 1000 documentation 1 2 Pre installation Checklist Ensure that you have the following resources available before you start installation These items have all been provided with your EyeLink 1000 system shipment 1 EyeLink 1000 Mount which is one or more of the following Each Mount option has a separate chapter to be consulted regarding its installation e EyeLink 1000 Tower Mount includes IR mirror built in IR illuminator and chinrest e EyeLink 1000 EyeLink Remote Desktop Mount includes integrated IR illuminator and optional chin rest and forehead rest e EyeLink 1000 Arm Mount includes integrated IR illuminator LCD monitor and flexible monitor Arm with optional chin and forehead rest e EyeLink 1000 Primate Mount includes integrated IR illuminator 2 EyeLink CL High Speed Infrared Camera 3 Phoenix frame grabber PCI card Introduction 2005 2008 SR Research Ltd 4 DLINK DFES38 TX Ethernet PCI card 5 Power supply for the EyeLink CL High Speed Infrared Camera 6 CameraLink cabl
37. ither case double sided Velcro strapping can assist in securing parts of the Arm to make disassembly more manageable Once the Arm has been removed from the Arm Base removal of the Arm Base involves loosening the bolt from applying pressure to the shim until the Arm Base can slide freely off of the table Be careful when handling the shim as it may have sharp edges created around the center hole from the pressure applied to it Important It is recommended that two people participate in disassembling the Arm Mount Read these instructions through and prepare a place to put the disassembled pieces before attempting disassembly 5 8 1 Option 1 Remove Arm and Camera Assembly as a Unit First fold the Arm as pictured in Figure 5 6 The Camera and LCD Assembly can be lowered so that the camera bracket is beneath the bottom limb of the Arm Raising it slightly can put pressure on the cable cover which may mark the cover so some packing material may be inserted between these to prevent marking if desired Wrap Velcro soft side against the Arm is recommended around the Arm so that it will not extend when lifted see Figure 5 6 Although full Arm extension is prevented by the camera bracket pressing against the cable cover the possibility exists for body parts to become pinched The entire Arm with intact Monitor Assembly can now be lifted from the Arm Base One person may need to apply downward pressure to the table while the other
38. le to mount the Arm Base is probably required 5 2 Affixing the Arm Base to a Tabletop There are two different configurations of the Arm Base illustrated in Figure 5 3 On the left of Figure 4 3 is the configuration of the base for a table that can accept the shim at a deep position under its surface This may be required if there is a lip at the table s edge and is the default configuration that the system generally ships with The bolt is fully tightened when the unit is shipped and places pressure against a shiny steel shim that abuts against the underside of the table Be careful while handling the Arm Base s shim as it may have sharp edges around it centermost hole The Arm Base configuration on the right works with tables that have only a narrow ledge on the underside as small as 18 mm accommodating tabletop heights of 60 mm 6cm or 2 3 8 This configuration is created by removing the long bolt that presses against the shim loosening the screw at the bottom of the base reorienting the L shaped bracket so that the short portion is now perpendicular to the base and screwing the bracket back to the base The bolt must now be turned through the short portion of the L shaped bracket in order to meet and apply pressure to the shim on the underside of the table Some light viscosity oil may make the turning of the bolt go more smoothly but keep in mind that oil will result in discoloration of the paint on the arm so turn the
39. lick the INSTALL button on the opening screen and follow the instructions to install the System Commander software The license number will be on the front of the EyeLink 1000 Software CD case enter it when you see the screen illustrated in Figure 8 1 You are only licensed for 1 copy of this software for use on the EyeLink 1000 Host PC The installer will prompt you to create Rescue Disks to register to check for updates from the web etc None of these steps is critical so they may be skipped if you are in a rush or do not have a floppy drive 4 After installation run the System Commander program by going to the Windows Start Menu and selecting the System Commander entry 5 Given the Utility Wizard dialog box that will automatically be displayed see Figure 8 2 select the Enable System Commander entry click on Next exit the System commander program and restart the computer The computer will boot into the System Commander interface as shown in the left side of Figure 8 3 Please select an option below V f Make Boot Restart Diskette s f Enable System Commander Disable Uninstall System Commander f Settings W Show this wizard at startup Back Cancel EDR Figure 8 2 Enable System Commander 8 1 2 Resize Existing Disk Partition Upon restart the computer will automatically run the System Commander application this will happen every time the computer is powered up The next
40. ling simultaneously the Tower height adjustment knobs away from the poles on both the left and right hand side see right side of Figure 3 3 Be careful as you still have to support the weight of the camera mounting unit Make sure that the unit does not fall down the poles If at any point the camera mounting unit does begin to fall releasing the spring loaded height adjustment will cause them to lock into one set of holes in the Tower poles preventing the Tower from falling further Gently lower or raise the camera mount by pulling to release the height adjustment knobs and raising or lowering the unit until the knobs are in line with the center of the display monitor see Figure 3 4 This will produce an optimal viewing angle for participants Once the Tower height is set for a normal operation it does not need to be adjusted further The experimenter should adjust the heights of the chair and or chin rest on a participant to participant basis Tower Mount Installation 2005 2008 SR Research Ltd oa Figure 3 4 Adjust Height of Tower to Half the Screen Area of Monitor 3 2 Mounting the EyeLink CL High Speed Camera The 25 mm lens should be used on the EyeLink 1000 Tower Mount Hold the camera with the lens facing downwards and the focusing arm on the right Align the hole on the camera to the screw on the top of the Tower and tighten the screw knob from below Please make sure the camera lens is not dusty or scratched Eye
41. n e Connect the supplied SVGA extension cable to the SVGA cable coming out of the bottom of the Arm Mount The female end of the cable coming from the arm attaches to a male connector on the extension The extension s female end attaches to the Display PC video card output port e Connect the supplied audio cable extension female end to the phono plug audio cable emerging from the bottom of the arm Insert the male end into the audio output jack on the Display PC e Connect the supplied three prong power cable female end to the camera power supply male end that is attached to a cable coming from the bottom of the arm The male end plugs into a power source e Connect the supplied three prong power extension cable to the LCD monitor s power input and plug the male end into a power source The power supply in the monitor is 110 220 Hz so an adapter may be used supplied for countries outside of North America and Japan if the appropriate extension is not included 4 One final cable needs to be attached Connect one end of the Ethernet crossover cable provided with your system to the DLINK Ethernet card port on the Host PC Connect the other end of the Ethernet cable to the Ethernet port on the Display PC that you will later configure for use with the EyeLink system Ensure the cable is securely connected at both ends 5 6 Adjusting the Tension Points on the Arm Occasionally through use of the Arm some of the joints may loosen Eac
42. nes Desktop Mount EyeLink Remote Installation 2005 2008 SR Research Ltd 5 Arm Mount Installation Please follow the steps below to set up the EyeLink 1000 Arm Mount Figure 5 1 illustrates a typical Arm Mount setup and Figure 5 2 illustrates parts of the EyeLink 1000 Arm Mount as it ships from SR Research under its standard configuration The mount first requires fixing the Arm Base to a sturdy tabletop assembling the arm components attaching the EyeLink High Speed Camera and then attaching cables The following instructions detail each of these procedures The contents of the Figure in clockwise direction starting at the top are the Camera and LCD Assembly three Velcro strips rolled and piled cabling emerging from the end of the Arm which runs diagonally throughout the photo the Arm Base two L shaped Imperial Allen wrenches 2 5 and 6 extender tubes the Arm and two angled brackets Not shown in the photo are pieces of the monitor that allow it to be used with a traditional table mount should the user ever wish to remove it from the Arm Mount for conventional use the monitor driver CD and instruction booklet and extension cables SVGA audio and power 5 Figure 5 1 Typical EyeLink 1000 Arm Mount Installation Arm Mount Installation 2005 2008 SR Research Ltd Figure 5 2 EyeLink 1000 Arm Mount Components Arm Mount Base Arm Camera and LCD Assembly 5 1 Choosing a Table Before mounting the
43. nnected before opening the computer chassis to install any PCI card IMPORTANT Handle the cards only by their edges 2 2 2 Installing the Phoenix High Speed Frame Grabber PCI card Open the EyeLink 1000 host PC and insert the Phoenix High Speed Frame Grabber card into a free PCI slot Ensure the card s bracket is firmly attached to the PC Figure 2 1 Phoenix High Speed Frame Grabber 2 2 3 Installing the DLINK DFE 538TX Ethernet Card Insert the DLINK DFE 538TX Ethernet Card into a free PCI slot Ensure the card s bracket is firmly attached to the PC If the analog card option was not purchased with your system you may now close the computer chassis and reconnect the power supply to the computer Host PC Hardware Installation 2005 2008 SR Research Ltd Figure 2 2 Ethernet Card 2 2 4 Installing the Data Translation Analog Card Optional If the analog output option was purchased with your system then insert the Data Translation Analog output card into a free PCI slot Ensure the card s bracket is firmly attached to the PC Close the computer chassis and reconnect the power supply to the computer Figure 2 3 Analog Card 2 3 Display PC Hardware Installation Unpack your Display PC as per the instructions provided with the computer by the computer manufacturer and set up the computer at the desired location of the Display PC This includes connecting the keyboard and mouse to the computer as well as the
44. ollectively referred to as the EyeLink 1000 throughout this document with important exception noted where necessary The EyeLink 2000 involves a camera programmed for higher acquisition speeds and the EyeLink Remote involves a camera programming update to enable remote recoding without head stabilization While the EyeLink 2000 is compatible with all mount options the EyeLink Remote works with only the Desktop and Arm Mounts IMPORTANT Before proceeding with the EyeLink 1000 installation ensure you have backed up all important data on your Host PC The basic steps in installing the EyeLink 1000 system are 1 Unpack and Install the EyeLink 1000 Hardware This includes connecting the Host PC to the Display PC via an Ethernet link 2 Install necessary Operating System and EyeLink 1000 Host Application software on the PC your have selected to act as your Host PC 3 Install the EyeLink 1000 Windows Software API and example experiments on the Display PC 4 Test the installation The installation process will take about 2 hours so try and do it when you have this amount of time to dedicate to the process If you have questions or encounter a problem during the installation process please contact SR Research through one of the contact channels listed at http www sr research com contact ph If you would like to ensure that a technical representative is available for direct phone support during your installation please con
45. on Although not essential before attaching the camera it may be convenient to first attach the camera data cable that emerges from the Arm to the back of the camera This is an opportune point to attach this cable because once the camera is attach there is nota lot of space between the cable interface on the back of the camera and the bracket holding the camera see top of Figure 5 4 The camera data cable is a D shaped cable Arm Mount Installation 2005 2008 SR Research Ltd that can only go in one orientation and requires thumbscrews to be tightened to assure a good connection The thumbscrews are also slotted so that a slotted screwdriver can be used to tighten the screws if your thumbs are not strong enough to do the job Next mount the camera on the LCD assembly On the front of the camera is a threaded hole that the camera screw from the Arm Mount will go into This will secure the camera A knob is attached to the opposite side of the camera screw so that it is easy to turn the screw into the camera hole Dimples on the camera fit into protrusions on the mount in order to ensure the right positioning of the camera which should be aligned level with the top surface of the part of the mount holding the camera screw Tighten the knob until the camera is secured Next replace the cover by sliding the slots on the cover s bottom around the thumbscrews on the underside of the assembly Tighten the thumbscrews and adjust the cover so that
46. ping box that contains the EyeLink 1000 Tower Mount please be careful as it contains glass that may have been broken during shipping If the system has been stored or transported at a temperature below 10 C allow all parts to warm to room temperature before proceeding IMPORTANT Save the shipping case and all packing material for storage or in case the unit needs to be returned for repair IMPORTANT The EyeLink 1000 Tower assembly should be held by the vertical posts and should NEVER be held by the mirror or the components attached to the mirror 2 2 Host PC Hardware Installation 2 2 1 Setting Up the Host PC Computer and Monitor Unpack your Host PC as per the instructions provided with the computer by the computer manufacturer and set up the computer at the desired location This includes connecting the keyboard and mouse to the computer as well as the power supply and monitor cables Host PC Hardware Installation 2005 2008 SR Research Ltd If your EyeLink 1000 system was supplied with the hardware preinstalled into a supplied Host PC please skip to the section detailing the EyeLink 1000 mount option that you wish to set up To set up your Host PC for use with the EyeLink 1000 system you will be required to open the computer chassis to install two or three PCI cards Therefore put the computer case in a position where you can easily access the computer s PCI slots IMPORTANT Ensure the computers power cable is disco
47. r power supply with the EyeLink CL camera other than the one provided with your system 6 Plug the supplied USB game pad into a USB port on the Host PC Use the optional USB extender cable if the game pad needs to have a cord longer than one meter NOTE The USB game pad must be directly connected to a USB port on the Host PC and cannot be connected through a USB hub 7 If an analog card was installed in your Host PC connect one end of the supplied analog card cable to the analog card connector on the Host PC Connect the other end of the cable to the analog breakout board that was provided with the Analog card option Ensure the cable is firmly attached at both ends and that the thumb screws have been tightened to lock the cable in place Attaching EyeLink 1000 System Cabling 2005 2008 SR Research Ltd 8 Host PC Software Installation Both the Host PC and Display PC need to be configured for use with the EyeLink 1000 system This chapter details Host PC software installation and the next chapter details Display PC software installation 8 1 Installation on a Computer Running Windows 2000 XP The first step in preparing your Host PC for the EyeLink 1000 is to install the ROM DOS operating system that the EyeLink 1000 system runs on This allows you to perform subject setup monitor performance record data and control experiments running on the Display PC At the same time you will want to keep your existing operating s
48. rch Ltd 9 Display PC Software Installation The Display PC is used to run experiment application software for control of the EyeLink 1000 tracker and stimulus presentation through the EyeLink Display Software This API is available on Windows MacOS and Linux platforms The Display PC installation process is much less complicated than the Host PC installation and should not take more than 15 minutes Installation instructions for the Windows platform are detailed below 9 1 Windows Installation To use Windows as a Display computer with the EyeLink 1000 system various EyeLink software components should be installed on the Windows Display PC The installation process consists of the following basic steps e Install the EyeLink Experiment Programming Kit e Install the supplied IO Port Access Driver if planning to use TTL e Install the EyeLink Data Viewer and or Experiment Builder software if purchased e Install the USB Key drivers for EyeLink Data Viewer and or Experiment Builder software if purchased e Configure the network connection to the EyeLink 1000 Host PC 9 1 1 Installing the EyeLink 1000 Experiment Programming Kit The Windows toolkit API and example files is available on the EyeLink 1000 Software CD in the Display PC Installation directory To install the toolkit i 2 Insert the EyeLink 1000 Software CD Open the Display PC Installation Windows folder Run the
49. rd disk with 7 200 rpm e Video card supporting vertical refresh rates of 100 Hz e A CD ROM writer for software installation and data backup e Atleast 512 MB RAM 1 2 GB recommended e 32 bit Windows 2000 or 32 bit Windows XP service pack 2 e 17 or larger monitor that supports vertical refresh rates of gt 100Hz 10 ms frames and horizontal refresh rates gt 100 kHz e Ethernet card to connect Display PC to the EyeLink 1000 Host PC e Optional Ethernet card for use on local network a separate network card should be used to connect to the EyeLink 1000 system e A keyboard and mouse or other pointing device Introduction 2005 2008 SR Research Ltd 2 Host PC Hardware Installation IMPORTANT Switch off the computers before installing any PCI cards or connecting or disconnecting any cables Ensure that all cabling is properly connected and connectors are properly secured to the Host PC and the EyeLink CL camera before use IMPORTANT Ensure that the power supply setting on the back of the PC Near the power jack matches your local supply voltage WARNING Static Electricity Discharge may cause permanent damages to your system In order to avoid possible static electricity discharge during installation please discharge any static electricity accumulated in your body by touching a grounded metal surface or the computer case for a few seconds 2 1 Unpacking Open the shipping case If you are unpacking the large ship
50. ree angle relative to the table Align the hole on the camera to the camera screw on desktop stand and then tighten the camera screw Dimples in the camera align with protrusions on the mount to ensure the camera is in the right position Camera screw should be placed at the bottom end of the slot IR Iliu minator Camera Angle s Adjustment Binocular Camera Orientation Rotate the camera to 45 degree angle igh Speed amera Pan Tilt Adjustment Figure 4 4 Camera Angled Position for Stabilized Binocular and monocular Recording After the camera is mounted onto the Desktop Mount connect the EyeLink CL power supply that was provided with your system to the power connector on the left side of the camera see Desktop Mount EyeLink Remote Installation 2005 2008 SR Research Ltd Figure 4 5 Connect the two illuminator cables that come out of the Desktop Mount to the left side of the EyeLink CL high speed camera J f Data Cable Illuminator Cables Camera Power Cable Figure 4 5 Camera and Illuminator Cables from Desktop Mount 4 2 Adjusting the Desktop Mount Monocular Binocular and Remote Recording Place the Desktop Mount on the table at a distance between 40 and 70 cm from the participant s eyes with the illuminator and eye camera facing the participant the recommended tracking distance is 50 to 55 cm The camera screw of the Desktop Mount should be aligned to the center of the display PC
51. ructions for the Desktop Mount then continue below To use the EyeLink 1000 in remote mode the viewer is ideally about 60 70 cm from the display surface The height of the monitor should be set so that when the participant is seated and looking straight ahead they are looking vertically at the middle to top 75 of the monitor Once you have set up the system make sure you have updated PHYSICAL INI which is located at C ELCL EXE folder of the host computer Please follow Section 10 1 Customizing Your PHYSICICAL INI Settings to modify the PHYSICAL INI file settings Check whether the camera is set to the Level position the elongation of the camera should be parallel to the table see section 4 1 Mounting the EyeLink 1000 High Speed Camera Place the eye tracker right in front of the monitor the camera screw should be horizontally aligned to the center of the monitor For maximum eye tracking range the eye tracker should be raised so that the top of the illuminator is as close as possible to the lower edge of the visible part of the monitor without blocking the subject s view Internally the eye tracker software was designed to perform based on these assumptions Variability by a couple of centimeters will not have an impact on the tracker accuracy while a larger deviation from the recommended settings may cause performance issues Contact SR Research Ltd if your experiment requires substantial deviation from the above guideli
52. s Apply to All Folders Reset All Folders Advanced settings Display simple folder view in Explorer s Folders list Display the contents of system folders Display the full path in the address bar C Display the full path in the title bar J Do not cache thumbnails 9 Hidden files and folders Do not show hidden files and folders f Show hidden files and folders Q Hide extensions for known file types LC Hide protected operating system files Recommended Q Launch folder windows in a separate process 9 Managing pairs of eb pages and folders Restore Defaults OF Cancel Apply Figure 8 7 Windows Explorer Tools Folder Options Dialog vi Press OK Host PC Software Installation 2005 2008 SR Research Ltd vii Select all files in the Host Partition folder of the CD viii Copy these files to the root directory of the EyeLink 1000 drive on your computer 3 To return Windows so that it hides operating system files complete the following steps i Select the Tools Folder Options menu in Windows Explorer ii Select the View tab iii Deselect the Show hidden files and folders option under Hidden files and folders iv Check the Hide protected Operating system files 4 If your host PC uses a USB keyboard please proceed to section 8 1 5 Configuring the USB Keyboard 5 If you have a PS 2 keyboard please continue to section 8 1 6 Transfer the System
53. search Ltd e The line from the illuminator to the eye should be at least 10 off axis from the camera lens for proper imaging e The illuminator should be attached to a robust metal support as should the camera Preventing separate motion of the camera and illuminator due to vibration is critical to prevent extraneous noise in the data The metal will also help to keep the illuminator cool increasing its light output e While it is possible to rotate the camera by 90 this will swap X and Y pupil position data Contact SR Research for information about operating in this configuration e Itis possible that an extra bright reflection may appear above the pupil in the eye image as the illuminator may directly light the eye as well as through the mirror A small baffle may be required to control this Primate Mount Installation 2005 2008 SR Research Ltd 7 Attaching EyeLink 1000 System Cabling For system cabling please follow the wiring diagram in Figure 7 1 EyeLink Display PC EyeLink II Host PC 115 230 115 230 Power Supply Power Supply Motor ai Gare Ceacking Che EveLink il Zra Eg 19 YGA 14 YGA EE a Ethernet Cable Jon 5 1 Mouse oon a pete Ke Boardi HH nom F mier mier afr tr pre i Eia Baa Bi CameraLink Cable Mouse FNA USB Button Box EyeLink 1000 Figure 7 1 System Set up and Cabling The basic cabling steps are 1 If not alread
54. setanactceasaovescess 38 Figure 8 5 Partition and Partition Type Selection ssesssesssressesrersseresssressssresseeresssresseere 39 Figure 6 6 Create a Custom FAT G2 Partition scscaicncacesmsieadedorcsduesudondsctnesiipadengenessaieoseteeedencets 40 Figure 8 7 Windows Explorer Tools Folder Options Dialog cccc ccc ccc ccc ec enc eeeeeeeeeeneees 41 Fig re 6 5 Select Partition to Rename iacncciencocdesavcenecedansenstanessndemeasnrtsnclantsndenessesmcanSeonenvesedes 43 Figure 8 9 Select Description and Icons sssssssssesrssressseessseresssererseeressererseseesseseesseeeesseee 2005 2008 SR Research Ltd Figure 6 10 Order Add and REMOVE acess coecasespatccescatvendseeciatavanessreneteene dot geaccalaneteeeeeenecets 44 Figure 8 12 EyeLink 1000 Tracker Application in Offline Mode at Startup 08 46 Figure 8 13 Set Options Screen for ELCL Configuration ssssssessseeesseseeessssseeseesseseeeesseo 46 Figure 8 14 EyeLink 1000 Tracker Application Camera Setup Screen ccceeceeceeee eens 46 Figure 10 Measure Screen PNY Ss CONUS voc ceteccda cred ectinntnedatevetee esd eedacchamaucedeeruecetageseeets 53 Ea 2005 2008 SR Research Ltd 1 Introduction This document provides hardware and software installation instructions for the EyeLink 1000 2000 and Remote systems using the Tower Desktop Primate or Arm Mounts For the simplicity of presentation these eye trackers are c
55. st PC Computer and MON Itor ccccccscccsesecsseseeeeeneessenees 6 2 2 2 Installing the Phoenix High Speed Frame Grabber PCI card 0 2 2 3 Installing the DLINK DFE 538TX Ethernet Card ccccccscccssscsssesseeeensesseeees 2 2 4 Installing the Data Translation Analog Card Optiondl ccccccssccseeeeeeees 8 2 0 Display PC Hardware Installation ccccccccce ccc e ec ee ee eeeeeneeeeeeeneeeeens 8 3 Tower Mount Installation cccccssscsssecsssscsssssensonseccnsscnssnsanecnseneassoassosaness 9 3 1 Mounting the Tower to a Table cccc ccc esc cece ence eee eeseeeenseeeseeeeenees 10 3 2 Mounting the EyeLink CL High Speed Camera esssssesesesesssssssseo 12 3 3 Adjusting Head Rest Components i ccceccsserccducasicnssavendadagnecaotenesinersecens 13 4 Desktop Mount EyeLink Remote Installation ccesceseeneeeeeeeeees 14 4 1 Mounting the EyeLink 1000 High Speed Camera cece eee 14 4 2 Adjusting the Desktop Mount Monocular Binocular and Remote ROCO INE aea E E EEE 17 4 3 EyeLink Remote Hardware Adjustment for the Desktop Mount 18 5 Arm Mount Installation ssissicsseeinissnsnnii kiipesi anaana inaanak 19 5 1 CHOO ME a TADIC eeren E EEA E E E A access 20 5 2 Affixing the Arm Base to a Tabletop cccccccccceceeneeeeeeeseeeeneeeenens 21 53 Assembling the Arm Components sseseseeeesesesesessssssssssssssesrereeee 22 5 4 Mounting the EyeLink
56. step is to resize the existing partition to make space for a 5GB EyeLink Host Application partition Host PC Software Installation 2005 2008 SR Research Ltd Partition Wizard Ot d Boot from drive A Boot from CD Utility Windows XP MM Back Figure 8 3 Select Partitioning then Manual Partitioning 1 Having just rebooted your Host PC you will see something like the window on the left of Figure 8 3 Click the Partitioning button from the OS Selection Menu then select Manual Partitioning as illustrated in Figure 8 3 If your computer reports that it is Analyzing for an extended period of time i e more than a few minutes then i Boot from the supplied System Commander Boot CD insert it into the CD drive and restart the computer ii Press F12 to get the Boot Menu and the internal CD as the boot device iii Select Partition Commander or Restart and continue with step number two below Resize Partition or an existing partition Minimum siz ein Sorts Prime y Figure 8 4 Partition Selection and Resize Host PC Software Installation 2005 2008 SR Research Ltd 2 From the Partitioning window select the disk and the partition to resize In System Commander each disk is represented as a cylinder Within these cylinders are differently colored partitions The partition typically this will be in the primary disk that should be resized to
57. tact your SR Research representative to book a time for installation phone support We will ensure that a technical representative is available to speak on the phone with you if required during your installation if you inform us of your installation time with at least one week s notice Introduction 2005 2008 SR Research Ltd 1 1 Suggested Equipment Layout The layout of the EyeLink 1000 equipment is important if participant setup is to be convenient and lighting problems are to be avoided Before setting up equipment check the arrangement of the room to be used against these suggestions These will aid in the production of good experimental data e Set up the host and display monitors and PCs on tables arranged in an L shape as in Figure 1 1 This configuration allows the experimenter to adjust the eye tracker device and set up the subject for the experiment while having access to both computer keyboards and monitors No Windows nC Computers Fye pi Avoid Lights No Windows Mo Windows Some Windows OK Host E Figure 1 1 Suggested EyeLink 1000 System Layout e Ifyou are using the chinrest that comes with the eye tracker please make sure you have a table available to mount the table clamp This table must have a minimum thickness of 1 8 cm and a maximum thickness of 8 0 cm The bottom edge of the table should have a depth of at least 6 0 cm to mount the integrated table clamp Please also
58. tance cieccccccseccsneecseecseeesseessuessanessuessusssanesaneesans 53 10 1 3 Entering Values into PHYSICAL IN 0 ccccscccccsccseecuesnneesauesnneesausssnesans 54 a 2005 2008 SR Research Ltd Figures Figure 1 1 Suggested EyeLink 1000 System Layout cece ccc ce nce eeeeeeeeenceeeneeeeeeneees 2 Figure 2 1 Phoenix High Speed Frame Grabber essssssssessssresssressssrerssrresssrerseeeesseeeesserese 7 Pe 2 2 ECE CA a S EE E EEE EEE EE E ENEE E E 8 PG e FO a aE E E EE E ee eee ace eee 8 Figure 3 1 Components of EyeLink 1000 Tower ssssssssssssssressssressereesseresssresseseeesseresesrese 9 Figure 3 2 Clamping Chinrest to Table cece ccc ccc nce nce ee ences eee eee eee eeeeneeneeeseaeeeeeseeeeaenes 10 Figure 3 3 Placing and Adjusting Tower Mount sicdccsus sicvdcsdeateasncunescestanwac nena senesaannardersoncbaaes 11 Figure 3 4 Adjust Height of Tower to Half the Screen Area of Monitor sssssesrsssssressssee 12 Figure 3 5 Views of the EyeLink 1000 Tower and Camera sssssssssssesssrerrssrerserrerseresseeeee 12 Figure 3 6 Camera and Illuminator Cables on EyeLink 1000 Tower ssssssssssssssssssssessseses 13 Figure 4 1 EyeLink 1000 Desktop Mount Components sssesssssesssresesrerssererseeeesseeesseree 14 Figure 4 2 Desktop Mount Camera Adjustment esssssssessssseeeesssseeeessssseeessssseesesssseeeeeses 15 Figure 4 3 Camera Level Position for Remote and Stabilized Monocular Recording
59. ter will be either c or d 3 At the command prompt A gt type the following command sys HYELINK DRIVE ENTER For example if your EyeLink partition is drive c you will enter Sys G and then press the enter key 4 Reboot the computer Once System Commander runs you should see something like the screen pictured in Figure 8 8 with and FAT 32 describing the EyeLink Host partition mols amp amp G O5 Wizard Partitioning Information Settings Locking e Boot from ve A Boot from CD FAT 32 OS Windows XP k Figure 8 8 Select Partition to Rename 8 1 7 Organize System Commander s OS Selection Menu 1 When System Commander starts up you will see a screen similar to Figure 8 8 Select Partition to Rename Click on the Settings icon 2 From the Settings window select Descriptions and Icons as illustrated in the left side of Figure 8 9 3 From the screen in the right side of Figure 8 9 click on the arrow buttons of the Current Selection box to select the FAT 32 OS In the EDIT DESCRIPTION box type EyeLink Under SELECT ICONS use the and buttons to change both large and small icons to OS Host PC Software Installation 2005 2008 SR Research Ltd Timeouts and default OS Hardware General Specific OS options Password security File management Order Add and Remove Description and icons Reset an Assistance and Help
60. the weight of the Arm apparatus The Arm is fairly heavy with the entire apparatus weighing in at approximately 11 kg or 25 lbs Some possible configurations of the Arm extend the monitor over empty space away from the table s edge placing the weight of the Camera and Monitor Assembly away from the support of the table To prevent tipping the table needs to be large heavy and sturdy or weighted at the end opposite from where the Arm is going to extend Caution should be used when first testing the range of the Arm in case the table is not strong enough to properly distribute the weight of the apparatus If the table begins to tip while extending the Arm out into space away from the table place the Arm apparatus back above the table surface and add weight i e the Display computer to the table surface opposite where the Arm is extending Repeat this procedure until it is clear that the apparatus is stable 5 4 Mounting the EyeLink 1000 High Speed Camera The EyeLink 1000 Arm Mount requires that the EyeLink 1000 Camera be attached It may have already shipped this way or you may have to attach a camera that was part of a different mounting system To affix the camera first remove the cover that obscures the camera and illuminator from the bottom front of the Camera and LCD Assembly Two thumbscrews on the underside of the assembly hold the cover in place simply loosen the thumbscrews and the cover will slide off in the forward directi
61. to make the EyeLink Partition Bootable 8 1 5 Configuring the USB Keyboard The PS 2 keyboard is the default driver setup within the EyeLink Host directory If you are using a USB keyboard rename the file to activate the USB keyboard driver 1 Locate the ELCL INI file in the ELCL EXE directory of the host partition Rename it to ELCL PS2 2 Rename the ELCL USB file to ELCL INI 8 1 6 Transfer the System to make the EyeLink Partition Bootable 1 Insert the CD labeled ROM DOS Boot Disk that came with the EyeLink 1000 system and restart the system as you normally would via Windows The next step is to boot off of the CD You may need to press F12 before System Commander is run to boot off of the CD ROM device With some newer types of hardware choosing to boot from the CD ROM from within System Commander does not work as desired 2 You will know that you have successfully booted from the CD ROM of you are given a ROM DOS command prompt Host PC Software Installation 2005 2008 SR Research Ltd IMPORTANT The following step requires you to determine the correct drive letter c d etc for the EyeLink 1000 partition you created above after booting with the ROM DOS Boot Disk Determine this by using the dir command e g dir c for each drive to find the EyeLink drive label and substitute that drive letter c d etc in place of EYELINK DRIVE below It is likely that the drive let
62. unt ships with three 60 cm double sided Velcro straps to aid in securing the Arm for lifting and disassembly A recommended method of securing the Arm using the Velcro straps is presented in Figure 5 6 It is recommended that two people participate in this task as the unit can be awkward to handle and does contain some very expensive and delicate equipment Figure 5 6 Securing the Arm for Disassembling and Transporting Arm Mount Installation 2005 2008 SR Research Ltd The weight of the Arm with the Camera and LCD Assembly approximately 11 kg or 25 lbs can cause shaft and cup holder points to become tight due to the pressures that the Arm makes while moving the apparatus into various positions Such pressures make what on assembly amounts to merely lowering a shaft into a cup holder not as easily reversed On reversal the pieces need to be gently rocked back and forth to wiggle them free As the Arm is fully loaded this requires rocking of large portions of the entire unit To minimize the potential for damage as many pieces as possible may be removed before attempting to remove the Camera and LCD Assembly from the Arm or the Arm from the Arm Base For instance removing the camera cover and camera is advised To disassemble the unit one option is to lift the Arm and Assembly together from the Arm Base A second option is to remove the Camera and LCD Assembly from the Arm first and then to remove the Arm itself from the Arm Base In e
63. value 1 Set up the monitor and chinrest so that the chinrest is centered on the monitor and the monitor is horizontally aligned with the chinrest HINT measure from the left and right knobs on the chinrest to the left and right sides of the top of the display area of the monitor these should be equal Final Installation Steps 2005 2008 SR Research Ltd 2 Adjust the height and tilt of the monitor Ideally this should have the top of the display at about the same height as the forehead rest and the display tilted up slightly The tilt can be changed if there are any reflection issues Small amounts of horizontal misalignment turning of the monitor may be tolerated if required to reduce screen reflections but this will reduce the accuracy of angular measures 3 Now measure from the front of the forehead rest Tower height adjustment knob or the subject s eye position if using your own chin rest to the point on the monitor directly in front of the knob lay the measuring tape across the top of the shaft of the knob and read distance from the front of the column Measure from the knob to the top of the visible part of the display area then from the knob to the bottom of the display area These two values in millimeters should be your new screen_distance command values 10 1 3 Entering Values into PHYSICAL INI The newly acquired values for screen_phys_coords and screen_distance must now be entered into the P
64. will be the first OS and can be selected by choosing A 3 Once you have completed this step close the windows by clicking the X in the top right corner You will be returned to the main System Commander window and are now ready to test the installation 8 2 Testing the Host PC Installation From the System Commander main screen select the EyeLink 1000 partition by clicking on the OS icon You should see a C gt prompt at the command line If you do not the EyeLink 1000 partition is not bootable and you should repeat the steps in section 8 1 6 Transfer the System to make the EyeLink Partition Bootable Start the EyeLink 1000 Host application by typing T Enter The EyeLink 1000 Host PC application should start and you should see the EyeLink 1000 Host application screen illustrated in Figure 8 11 Please make sure that you are using version 4 0 or later of the EyeLink 1000 host application the latest host software can be downloaded from SR Research support website http www sr support com IMPORTANT Each EyeLink 1000 system loads a camera specific SCD file If you see the following error when starting up the tracker please ensure that SCD file is contained in the ELCL EXE directory ERROR Camera data file c ELCL EXE SCD does not exist You can find the camera specific SCD file in the Host Partition ELCL EXE directory of the EyeLink 1000 Software CD that came with your system
65. wnwards and the researcher supplies an apparatus that will reflect a view of the eyes up into the camera barrel while reflecting the infrared illumination onto the face of the subject being tracked see Figure 6 1 Typically this would involve the researcher fixing a hot mirror a piece of glass that reflects infrared light while allowing other wavelengths to pass through it in front of the subject s eyes The subject can thereby see visual stimuli being shown by looking through the hot mirror while the camera has a good view of the eyes Typically the distance between the camera and where the eye would be for monocular recording would be identical to the Tower mount 380 mm While the Primate Mount uses a similar set of metrics to the Tower Mount it is intended to be flexible and ready to install in a wide range of situations where a means of head stabilization exists but the Tower or Desktop mounts are inappropriate This frequently occurs when research on eye movements is being performed on Primates with their head fixed for instance by means of a Primate Chair If the head is fixed extremely solidly pupil only tracking may be possible otherwise as with the other EyeLink 1000 mounting options Pupil CR mode is recommended Figure 6 1 Typical EyeLink 1000 Primate Mount Installation Primate Mount Installation 2005 2008 SR Research Ltd 6 1 Primate Mount Hardware Considerations As experimental setups using this mount var
66. y PC Installation Windows gt SR Research Experiment Builder folder 7 Run the SREB _ exe program by double clicking the icon 8 Follow the instructions from the InstallShield Wizard to install the software 9 Wait for the InstallShield Wizard to finish and click FINISH to complete installation 9 1 4 USB License Key Installation If you purchased either the Data Viewer or Experiment Builder software you will have been provided with a USB license key with your order To install the software driver for the USB license key follow these steps 1 From the Windows Start menu select Start gt All Programs gt SR Research gt Install HASP Driver Display PC Software Installation 2005 2008 SR Research Ltd 2 Follow the instructions from the InstallShield Wizard to install the software 3 Wait for the InstallShield Wizard to finish and click FINISH to complete installation 4 Insert the USB Key into a free USB port on the Display computer The USB key should start to glow a reddish purple color indicating that the key has been recognized by the system 9 1 5 Setting up EyeLink 1000 Network Connection You must have an Ethernet port in your Display Computer Allow Windows to install drivers for it if it is new hardware then follow these instructions to install and configure the TCP IP network protocol These instructions are based on Windows XP other Windows operating systems may vary slightly
67. y done attach the keyboards mouse power cords monitors etc to the Host and Display PCs Attaching EyeLink 1000 System Cabling 2005 2008 SR Research Ltd 2 Connect one end of the Ethernet crossover cable provided with your system to the DLINK Ethernet card port on the Host PC Connect the other end of the Ethernet cable to the Ethernet port on the Display PC that you will later configure for use with the EyeLink system Ensure the cable is securely connected at both ends 3 Connect one end of the CameraLink Cable provided with your system to the Phoenix High speed Frame Grabber card in the Host PC Connect the other end of the cable to the top of the EyeLink CL high speed camera Ensure the cable is firmly attached at both ends with the two thumb screws tightened to lock the cable in place Please note that if you have purchased both the Tower Mount and Desktop Mount you will receive two CameraLink cables The cable that has a right angle connector should be used on the Desktop Mount 4 Ensure that the two illuminator cables that come out of the head support Tower or Desktop Mount have been connected to the left side of the EyeLink CL high speed camera 5 Connect the EyeLink CL power supply that was provided with your system to the power connector on the left side of the EyeLink CL camera After the power supply has been connected to the camera connect the power plug to a power surge protector Important Do not use any othe
68. y widely following something akin to Figure 6 1 is recommended but other configurations are possible The configuration depicted assumes use of the 25 mm lens but other lenses can be used for different viewing distances As with the Tower mount but not with the other systems there is lots of room for movements of the hand in front of the body using the Primate Mount All system and optical components can be seen in the overall rear and side view drawings The optical axis is represented in Figure 6 1 by the thin dotted line The camera is placed above a 45 hot mirror which reflects IR light but transparent to visible light that reflects an image of the eye to the camera The subject views the stimulus source such as a computer monitor through the mirror The illuminator module is mounted and angled so as to illuminate the eye via the mirror as well the direct path from illuminator to eye is represented by the heavy broken line The illuminator should be angled to maximize illumination of the eye while minimizing bright spots and shadows on the face For human subjects this may require placing the illuminator to the temporal side of the tracked eye to reduce nose and forehead bright spots and shadows on the temporal side of the eye socket The illuminator is normally located significantly closer to the eye than in the Tower mount typically 180mm from front of illuminator to eye This distance results in an eye illumination level of 1 0 m
69. ystem accessible so that you can access your CDRW drive etc when required To achieve this you will create a FAT32 partition on your hard drive using System Commander that will host the ROM DOS OS provided with your EyeLink 1000 system System Commander will also be used to allow you to choose which operating system you wish to launch when you start the Host PC Customer Information Important If you have a floppy disk drive Please enter your information below create the System Commander rescue disks when prompted during installation These may User Name Eyak help you recover the drive partitions in the Eme future in the event of file system corruption on SR Research Ltd the dri e Arive Serial Number sca Your System Commander license is registered through SR Research Ltd Figure 8 1 License Code Entry 8 1 1 Install System Commander Install the System Commander application that came with your EyeLink 1000 This application allows the user to manage multiple Operating Systems on one computer 1 Boot into Windows as normal Insert the EyeLink 1000 Software CD into your CD drive 2 Access the CD ROM contents by double clicking on My Computer and selecting the CD ROM drive Open the Host PC Installation Utilities folder and Host PC Software Installation 2005 2008 SR Research Ltd run the SystemCommander81 1 exe file to install the System Commander software 3 C

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