Pocket Neurobics Wiz Manual
Contents
1. Mode the Mode of a device indicates its current configuration the number of slots transported the sampling rate of those slots and gain or amplification of each slot sps samples per second or how fast the bio signal is samples EMG needs a fast sampling rate whereas the blood oxygenation modalities can use a much slower sampling rate and thus use less of the PC s processing resources There are five products currently defined in the Wiz product suite e Q wiz 2 4ch EEG hHEG usb wireless with eeg cap interface implementing Modes 1 4 e Q for mini Quantitative Assessment e E wiz 2ch EEG usb wireless implementing Modes 1 3 e E for EEG e H wiz 2ch HEG usb wireless implementing Modes 1 2 H for HEG e W wiz 2ch EEG wireless implementing Modes 1 3 e W for wireless e N wiz 2ch HEG wireless implementing Modes 1 2 NfornlIR HEG Applications supporting the Wiz suite are BioExplorer www cyberevolution com BioEra www bioera net future The Wiz suite flexibly supports 1 to 4 transport slots The modalities in those slots fall into two categories i AC alternatibg current signals e EEG elecroencephalography 1 to 4 chanels e SCP slow cortical potentials 1 to 4 channels e ECG electrocardiography 1 to 4 chanels and e EMG elecromyography 1 to 4 channels ii DC slowly varying Direct Current signals e nlR HEG near infrared hemoencephalography one or two channels e pIR HEG passi2. in Mode 0 and USB transport toggles between USB transport only and USB and wireless transport concurrently Transport LED blinks with wireless channel number when wireless is active e long press controls freezing and unfreezing EEG DC removal pressed at power up initiates Signal Generator mode pocket neurobics com e Power On Button pen ant e toggles normal operation and power off E wiz H wiz e Mode button green 8 LED e short press sequences thru Modes display e pressed at power up enter fail safe mode Operates with base feature set Mode for recovery should firmware become corrupted Calibrate green button e shor press initiates nIR pIR pulse HEG baseline search for nominal value of 100 Power e in Mode 0 and wireless transport transmit power button increments rf channel in USB Mode Transport use Application to change button wireless channel if required e in Mode 0 and USB transport toggles between USB transport only and USB and wireless transport concurrently Transport LED blinks with wireless channel number when wireless is active pressed at power up initiates Signal Generator mode Power On Button e toggles normal operation power off link freeze button link freeze W wiz e Mode button green e short press sequences thru Modes pressed at power up enter fail safe mode Operates with base feature set Mode for recovery should firmware become corrupted e Link green amp Fre
3. as its reference If the green Link light is on then all four electrodes are sharing a common reference and only one reference electrode need be connected to the body although typically two reference electrodes are still used one to each ear lobe 7 HEG Interface The Q H N wiz senses when a HEG either nIR pIR or pulse headband is connected The HEG LED will begin to flash signifying that the unit is adjusting the signal to it s nominal value of 100 Once the nominal value is found the device automatically Freezes the baseline and the HEG LED stops flashing and becomes steady on The Wiz is then ready for training Note that the unit will attempt to find the nominal value whether the headband is on the head or not so if a false nominal value has been set then a_long_ press of the Calibrate or Link button will initiate a new search Nominal values are found after 5 to 15 seconds of searching The offset required to establish the nominal value of 100 is remembered allowing HEG to settle faster next time it is powered on Offsets are grabbed at the time a nominal value of 100 is achieved These offset values will then be saved to memory when there is either a mode change or a short press of the Link Freeze button For both nIR and pIR HEG should the limits of the range of reading be exceeded then a search for the nominal value of 100 is automatically re started If in a 2 slot mode ie Mode 1 2 or 3 and just one headband is in
4. displaying the status of the 21 ch EEG Cap interface to be described later On power up the Signal Display mode appears It can be recognised by flickering of the LEDs reflecting the real time nature of the signal being displayed To enter the Q menu mode _long_ press of the Mode button Q menu mode can be recognised by a non flickering LED display with initially only the top LED lit Once in Q menu mode Signal Display Mode can be re entered with a_short_ press of the Mode button Without headbands connected the Signal Display shows the real time display of the EEG signal on transport Slot 1 ie EEG Channel 1 With Freeze off ie no blue Link LED then the EEG signal should be centered on the display and the magnitude of the EEG will excite LEDs around the center LED With Freeze on ie blue Link LED is on then the display will reflect DC shifts of the EEG signal If the display exceeds the LED display range indicated by the upper most or lowest LEDs slowly flashing then this might indicate that the DC level is exceeding safe limits although the operating range of the EEG signal is considerably greater than the range of the 8 LED display The EEG signal can be re centered by a_long_ press of the Link button to un Freeze the baseline Once centered the baseline can be re Frozen with another _long_ press of the Link button With only one of nIR or pIR HEG headbands connected the 8 LED display will refect the amplitude of the re
5. good then the Green light is mostly on and blinks off If the signal cannot be judged Good then the green light is off and blinks on On the Q wiz a long press of the Mode button activates the EEG Cap interface at which time the 8 LED indicator reports the status of the Cap multiplexer All models have a second button which controls key functions of the active modality For EEG ECG EMG SCP modalities the Link Freeze button toggles a link between the two reference electrodes and also toggles whether the DC direct current component of the signal is removed or not A short press of the button toggles the link action with a green light indicating that the references are currently linked A long press gt 2sec toggles whether the DC component is removed from the signal or whether the DC is not removed frozen which is indicated with a blue light DC coupling is preferred for ECG and SCP signal sampling and should be used with Ag AgCl electrodes Some unit shave a Power On button and some not If there is not a Power On button then the unit can be de powered by removing the USB cable or switching off at a USB mini hub with a power switch or by placing the unit in Program Mode Mode 0 Q wiz e Mode button green e short press sequences thru Modes Mode button pocket neurobics Ode oe activates the Q menu and the Cap Q wiz heg good inierace transmit as e pressed at power up enter fail safe mode Operates with base featu
6. mode of operation is to slowly remove the DC component of the EEG so the signal does not wander and potentially move out of range of the PC Application This virtual High Pass Filter is set at about 0 2Hz A_long_ press of the Link Freeze button will override DC removal and a blue LED will light to signify that the DC removal is now frozen _blue_ for _frozen_ and the amplifier will then act as a true DC coupled device Freezing the DC removal operation is used with SCP and ultra low frequency EEG modalities Another long press will re activate DC removal and extinguish the blue LED Freeze state is not remembered and will need to be set each time the unit is powered on The amount of DC offset removal can be remembered by the Wiz allowing the eeg to settle faster when next powered on Offsets are grabbed at the time of freezing the eeg with a long press of the Freeze button A _short_ press of the Link button will electrically join the two Reference electrodes 1 and 2 adjacent to the Link button and a Green LED will light to signify that the references are linked Another short press will unlink and extinguish the Green LED _green_ for _link_ Linking of electrodes is typically used for assessment procedures Link state is remembered the device will power up in the state previously set For the Q wiz EEG channels 3 and 4 do not have their own separate reference electrode EEG Channel 3 uses 1 as its reference and EEG Channel 4 uses 2
7. use either pIR or nIR then the signal will appear on Slot 1 This means that changing from pIR to nIR modality is as simple as changing headbands no reconfiguration of the Wiz or PC Application is required The Wiz supports 2 ch nIR Headbands If the Wiz senses that the current headband supports only one nIR channel then it substitutes the Infrared component of the nIR1 signal on the nIR2 slot This IR signal can be used to gauge the quality of the nIR1 signal and can be used by the application to derive the Pulse Rate from the nIR signal for say HRV training 8 Other Sensors Nellcor compatible SpO2 Pulse Oximeters can interface to the Q H wiz via an adaptor The adaptor allows the sensor to be plugged into the nIR HEG socket on the Wiz Pulse Oximeters would generally be used to obtain the pulse bioSignal Pulse Rate and Heart Rate Variability training can be based on this signal Thermocouples can be used to measure skin temperature In particular thermocouples which can be grasped are available for the Q H wiz for use in training hand warming They are connected to the pIR HEG socket 9 8 LED Display Q E H wiz The Q E H wiz have an array of eight green LED s to feedback state information to the user The 8 LED display serves two functions e Signal Display mode real time display of the signal on transport Slot 1 either EEG AC or HEG DC depending on mode and whether headbands are connected or not e Q menu mode Q wiz only
8. when connected then the Q Wiz may decide that it is not connected to a USB port and begin transmitting wirelessly Unplugging the unit and re inserting should have it enumerate correctly If this happens persistently then the Q wiz can be started in fail safe mode see below which grants a longer period for USB enumeration Concurrent Wireless and USB Transport For the Q E H wiz when in USB Transport and Program Mode a short press of the Link button will toggle between having USB Transport only the blue Transmit LED will be on steady and having both USB and Wireless Transport concurrently signified by the blue Transmit LED being mostly on and blinking off This dual mode allows training room scenarios whereby USB connection is used to communicate with the PC at each training seat and wireless communication is used to a central control position which can scan the progress of each training seat or select one for closer monitoring This setting is remembered from session to session but note that wireless operation can cause interference to other devices operating wirelessly each device will need its own wireless channel Changing Wireless Channels When multiple Wiz s are operating in close proximity each must have a separate wireless channel There are eight wireless channels available When in Wireless Transport ie battery powered e the wireless channel number is incremented by choosing Mode 0 Program Mode then a _short_
9. 1 EEG2 nlR sensed NIR1 NIR2 nlIR amp pIR sensed NIR1 PIRI pIR sensed PIRI EEG1 PULS sensed PULS1 EEG1 pIR amp PULS1 sensed PULS1 PIR1 no headband sensed EEG1 EEG2 EEG3 EEG4 nIR sensed EEG1 EEG2 NIR1 NIR2 nIR amp pIR sensed EEG1 EEG2 NIR1 PIRI pIR sensed EEG1 EEG2 EEG3 PIR1 PULS sensed EEG1 EEG2 EEG3 Oxi1 pIR amp PULS sensed EEG1 EEG3 Oxil PIR1 All devices also have a Mode 0 or Program Mode which is selected to allow firmware updates or in the case of wireless operation to allow the PC to send Commands to the device see section on Commanding the device The Q E H wiz can operate wirelessly or by direct USB connection The P N wiz operate wirelessly only Wireless operation requires a PN wireless dongle connected to a USB port Devices that operate either wirelessly or by direct USB connection will automatically choose direct USB connection when a direct USB connection is recognised enumerated 2 Buttons All units have a Mode button A short press sequences thru the available Modes Mode is indicated by a blinking green light For Mode 1 the light blinks once For Mode 0 or Program Mode the light does not blink Modes are consistent across models Mode 2 on the Q wiz has the same attributes as Mode 2 on the E wiz But not all models support all modes The Mode button also serves as a Signal Good indication This indication is an assessment of the quality of signal on all active slots When the signal is judged as
10. UE On when nIR pIR or Oxi headband sensed Off no headband sensed sends test signal to PC Application Blink when nlR pIR pulse baseline search for nominal value of 100 is under way Blink Mode 0 wireless channel number GREEN On nIR full signal strength and or pIR valid reading Off nIR not full strength or pIR reading out of range Blink Mode 0 1 2 Program 32sps 2ch 128sps 2ch 4 Connecting to PC Wireless and USB Transport All models can transmit wirelessly The W wiz and the N wiz are exclusively wireless The Q E H wiz can transmit either wirelessly or directly via USB cable The Q E H wiz can also transmit both directly via USB cable and wirelessly The Q wiz can be powered from a normal USB port or by a USB Portable Power battery In the case of the latter the Q Wiz will automatically recognise that it does not have a USB connection and start to transmit wirelessly A PN proprietary dongle is required to receive the wireless signal The E wiz and the N wiz can be powered from either a USB port or 2x AA batteries placed inside the unit The batteries are not needed for USB operation The Q E H wiz will default to direct USB communication if it is sensed that the power is derived from a USB port If not they will transmit wirelessly No manual intervention is required The W wiz and the N wiz operate from a single AAA battery inside the unit In cases where the computer is slow to enumerate the Q wiz
11. eze blue button e short press controls linking of EEG references in Mode 0 and wireless transport increments rf channel in USB Transport use Application to change wireless channel if required in Mode 0 and USB transport toggles between USB transport only and USB and wireless transport concurrently Transport LED blinks with wireless channel number when wireless is active long press controls freezing and unfreezing EEG DC removal pressed at power up initiates Signal Generator mode Wireless Channel button e increments wireless channel number when in Mode 0 Program Mode Sequences thru channels 1 8 e Power On Button e toggles normal operation and power off pocket neurobics com pendant N wiz H wiz e Mode button green e short press sequences thru Modes e pressed at power up enter fail safe mode Operates with base feature set Mode for recovery should firmware amp LED become corrupted display e Calibrate green button e short press initiates nIR pIR pulse HEG baseline search for nominal value of 100 e in Mode 0 and wireless transport Mode button transmit power Fouer buin increments rf channel in USB nme Transport use Application to change wireless channel if required e in Mode 0 and USB transport toggles between USB transport only and USB and wireless transport concurrently Transport LED blinks with wireless Calibrate channel number when wireless is button active e
12. ghtness of the Red LED makes it impossible to see whether the IR is functioning If power is applied to the Wiz with the Link Calibrate button pressed then it will power up in Signal Generator Mode In this mode the above test signals are applied indefinitely until power to the unit is removed or both the Link button and the Mode button a pressed simultaneously to exit Signal Generator Mode 8 sec Self Test on normal Power up EEG 4 8 16 32Hz at 1 second intervals NIR 99 101 at 1 sec intervals 13 Saving Configurations When changing Modes the new Mode is remembered When the unit is next powered it will come up in that Mode After a signal has settled be it eeg or heg pressing the Freeze button for 2sec will save the current baseline so that the signal can settle more quickly when that modality is next selected Functions that get remembered e Mode 32 128 512 256sps 2ch 4ch e Baseline offset values e EEG Reference Link Status linked or un linked e wireless channel number e User Defined Cap Mapping 14 Fail safe Mode Fail safe Mode is entered by powering up with the Mode button pressed Fail safe Mode offers base functionality ie is usable for most functions and the ability to upload or re load firmware upgrade packages to restore full functionality Fail safe Mode comes up in Mode 2 128sps 2ch but other modes can then be selected Firmware upgrades are restored by placing the unit in Program Mode then usi
13. guish To exit Program Mode without saving the new configuration that is to keep the previous User Defined mapping simply _long_ press the Mode button The rapid flashing HEG LED will extinguish This latter method allows individual locations on the EEG Cap to be chosen and observed without changing the User defined mapping A _short_ press of the Mode button will then exit the Q menu entirely and disconnect the EEG Cap interface Mappings Chi Ch2 Ch3 Ch4 Pre defined Sequence 1 T3 T4 C3 C4 Pre defined Sequence 2 F3 F4 P3 P4 Pre defined Sequence 3 Fz Pz Cz Oz Pre defined Sequence 4 F7 F8 T5 T6 Pre defined Sequence 5 Fp1 Fp2 O1 02 Default User Defined Ch1 Fp1 F3 F7 Default User Defined Ch2 Fp2 F4 F8 Default User Defined Ch3 T5 01 P3 Default User Defined Ch4 T6 02 P4 these default locations are quadrants of the brain this configuration can be re programmed User Defined Mapping Choices Choices Ch1 Ch2 Ch3 Ch4 Fp1 Fp2 F7 F8 F3 F4 T3 T4 C3 C4 T5 T6 P3 P4 01 02 F7 F8 C3 C4 T3 T4 P3 P4 Fpz Cz Cz Fz Fz Pz Pz Oz Note that sites should not be shared across slots as that will act to short the two eeg channels Controlling the Cap s User Defined Mapping from the PC Application Some supporting Applications include the ability to control the mapping of the EEG Cap onto the 4 slots If the Q Wiz is directly connected via USB then the Application can command mapping of the EEG Cap sites on the fly commands sent from the application will
14. he Mode button and is de activated by a_short_ press of the Mode button The Cap interface sits across the normal electrode inputs so both the Cap interface and the normal electrodes can be used at the same time however in general one should use either the Cap interface or the normal electrode interface but not both Linking of electrode references by toggling the Link button applies equally to the normal electrode input and the references provided by the EEG Cap Pre configured mappings of EEG Cap locations to Slots A long press of the Mode button will activate the Cap interface The current Mode is maintained such that if the unit was in Mode 2 2ch 128sps prior to entering in Cap Assessment then only two of the four slots are available to the Cap Similarly if a HEG headband is plugged in one or more slots are lost to the Cap interface In general select Mode 4 4ch 256sps and remove headbands prior to a long press of the Mode button to activate the Cap interface Once activated a short press will de activate the Cap There are five pre configured mappings of selected Cap locations to the four slots which are sent to the Application These mappings are listed on the _left_ of the 8 LEDs for left to right Slot 1 4 These five settings sequence through as the result of holding down the Mode button continuously or through a series of long presses These five pre defined mappings accord with The Learning Curve four channel Assessment Pr
15. instantaneously configure the EEG Cap and the chosen sites will be conveyed to the Application over the four slots If the Q menu is not active at the time that the Q Wiz receives a command to map the cap sites the Q Wiz will automatically activate the multiplexer and save the new mapping as the User Defined mapping Also if not already in Mode 4 256sps 4ch the Q wiz will change to that mode If the Q Wiz is connected via wireless then select Mode 0 Program Mode to allow the PC Application to command mapping of cap sites 11 Poor Signal Detection The Wiz monitors e electrodes for Lead off condition e nlR HEG for signal strength e pIR for values out of range If any test fails the Good LED is extinguished This information on a slot by slot basis is also sent to the PC Application That is each slot is separately reported as Good or not 12 Test Signals At power up a brief self test sequence of test signals is sent to the transport slots and to the nIR HEG headband If the transport slot is configured for EEG use AC then the test signal is a 4 8 16 and 32Hz tone each for one second If the transport slot is configured for HEG use DC then the brief test signal is values 99 and 101 each for 1 second Additionally during this power up self test phase control signals to the nIR HEG headband interface separately pulse the Red and the IR LEDs so that both can be seen with the naked eye In normal use the bri
16. iz only e four slots at 256sps sampling rate high sensitivity recommended for 4 channel EEG or mixed modalities Mode changes are signified to the PC Application automatically and the Application s interface will reconfigure in sympathy For some changes like changing from 2 slot modes to 4 slot mode the Application s input may need to be manually reconfigured Note that the Source Objects of the BioExplorer Application have the ability to auto detect the modality of incoming signals such that if there is one Source Object configured for EEG and another for HEG then BioExplorer will automatically connect the correct Source object to correct incoming stream It does this on the fly Further where there is a single channel of a single modality then it will always appear on on the first input to the Application that is Slot 1 Thus single channel protocol designs can assume the input is always the first input 6 EEG Electrode Interface The Q Wiz can operate as a single channel eeg 2 channel eeg 3 channel eeg or 4 channel eeg The E W wiz can operate as single or two channel eeg If using EEG EEG Channel 1 must be one of the channels being used however there are no constraints on which other channels are used A Ground connection gnd is also required for all EEG configurations Thus the minimum arrangement for EEG use is three elecrodes 1 1 and gnd The Wiz is a 24 bit resolution directly coupled device However the default
17. ng the PC Application Software to upload the latest firmware package available from the pocket neurobics com website Functions that may not work in Fail safe mode model dependant commanding of the Wiz by the PC Application e pulse oximeter interface Safety functions in Fail safe Mode e extra time for USB enumeration for slow PCs e freeze button locks current sensor configuration to stop possible jitter on sensor detection in noisy environments
18. ocedure refer www brain trainer com User Defined mappings of EEG Cap locations to Slots A sixth configuration called User Defined is programmable To program the User Defined mapping of EEG Cap locations to slots scroll down to Program In a moment the 8 LEDs will start to sequence through the currently stored mappings of EEG Cap locations to slots The 8 LEDs indicate the Cap location listed to the _right_ of the LED Again left to right Slot 1 4 The current EEG Cap site identified by the 8 LEDs applies to the Slot indicated by the Mode LED which blinks with the current slot number one blink for Slot 1 etc Note that this display is for user information only so the user can readily see how the User Defined mapping is configured the Cap interface itself remains fully activated with all slots configured according to the User Defined setting Scan Mode Using _long_ presses of the Mode button to scroll to Scan will cause the EEG Cap locations to sequence through the five pre set configurations and the User Defined configuration Dwell time is about 8 seconds meaning that to sequence through all six mappings takes 48 seconds Prior to commencement of assessment Scanning can be used to check that there is a valid eeg signal on each of the Cap locations of interest both by visual inspection of the eeg trace and Lead off reporting to the PC Application Programming the User Defined Mapping With the unit sequencing through the c
19. on ie Program Mode Blink wireless channel number MODE GOOD green On no EEG lead off Off EEG lead off Blink Mode 0 1 2 3 Program 32sps 2ch 128sps 2ch 512sps 2ch LINK blue green Blue On EEG baseline frozen DC coupled Blue Off DC removal EEG low frequency response 0 2Hz Green On EEG References linked only one Reference electrode required Green Off EEG References independent two References required for 2 eeg channel operation H wiz TRANSMIT blue On Steady sending to Application via USB On Blink sending wirelessly Off Blink not transmitting to Application ie Program Mode Blink wireless channel number MODE GOOD green On nIR full signal strength and or pIR valid reading Off nIR not full strength or pIR reading out of range Blink Mode 0 1 2 Program 32sps 2ch 128sps 2ch CALIBRATE blue On when nIR pIR or Oxi headband sensed Off no headband sensed sends test signal to PC Application Blink when nlR pIR pulse baseline search for nominal value of 100 is under way W wiz BLUE On EEG baseline frozen DC coupled Off DC removal EEG low frequency response 0 2Hz Blink Mode 0 only wireless channel number GREEN On EEG References linked only one Reference electrode required Off EEG References independent two References required for 2 eeg channel operation Blink Mode 0 1 2 3 Program 32sps 2ch 128sps 2ch 512sps 2ch N wiz BL
20. or USB X X x Wireless only 8 wireless channels 5m range X X EEG 21 ch Cap Interface amp Control X Real time 8 LED display of signal on Slot 1 X X 24 bit resolution X X x 16 bit resolution x X DC coupled under User control X X x Linking of Reference electrodes user control X x X Auto baselining of HEG X x x Auto detection of Headband connection X X X Auto configuration of Slots for AC DC signals X Detection of electrode lead off X X X Detection of poor signal Vibration when signal quality changes Remembers configuration Self test at startup Signal Generator Mode Firmware Upgradeable Failsafe Mode x KKK KK OX x KKK KK XK xx xK KK OK xx KKK X 1 Overview The Wiz is a bio signal acquisition device The devices in the series capture bio signals such as eeg and blood oxygenation measures and forwards them via USB or wireless to an Application running on a PC which has a Wiz driver to correctly interpret the signals being sent The Wiz will typically be used as an element in a bio feedback training system In this manual the following terms are used Modality the type of bio signal being acquired eeg emg ecg scp nIR pIR and pulse oximetry are modalities Channels the number of channels of each modality For example 2 channel nIR can be carries over 4 transport slots of the Q wiz Transport Slot the total number of Channels of various modalities that can be transported from the Device to the PC
21. press of the Link button e the PC Application cannot command a change to the wireless channel In USB transport mode e the Application may have the ability to change wireless channels of the Wiz and if so e the wireless channel number can be changed either in Program Mode Mode 0 or in the Operating Modes A new wireless channel number is remembered from session to session Separately the PN wireless dongle needs to be set to the same wireless channel as that of the Wiz That is the wireless dongle needs to be blinking at a rate the same as the Wiz When the PN wireless dongle is successfully receiving a signal it s green LED is on and blinks off The wireless channel of the dongle can be changed either by _short_ presses of its button or by commands from the PC Application if the Application has that ability 5 Modes A _short_ press of the Mode button will change modes There are five Modes e Mode 0 e Program Mode for uploading upgrades interrogating version numbers etc e Mode 1 e two transport slots at 32sps sampling rate low transmission rates to minimise burden on PC processor recommended for HEG amp SCP only not suited for use with EEG EMG or ECG e Mode 2 e two slots at 128sps sampling rate most sensitive and low rates to minimise burden on PC processor recommended for EEG and SCP e Mode 3 e two slots at 512sps sampling rate for high bandwidth 4x lower sensitivity recommended for ECG EMG SCP e Mode 4 Q w
22. pressed at power up initiates Signal Generator mode calibrate Wireless Channel button increments wireless channel number when in Mode 0 Program Mode Sequences thru channels 1 8 Power On Button e toggles normal operation and power off 3 LED Indicators Q wiz TRANSMIT blue On Steady sending to Application via USB On Blink sending wirelessly Off Blink not transmitting to Application ie Program Mode Blink wireless channel number MODE GOOD green On no EEG lead off and or nIR full signal strength and or pIR valid reading Off EEG lead off or nIR not full strength or pIR reading out of range Blink Mode 0 1 2 3 4 Program 32sps 2ch 128sps 2ch 512sps 2ch 256sps 4ch LINK blue green Blue On EEG baseline frozen DC coupled Blue Off DC removal EEG low frequency response 0 2Hz Green On EEG References linked only one Reference electrode required Green Off EEG References independent two References required for 2 eeg channel operation HEG yellow On when nIR pIR or Oxi headband sensed Off no headband sensed all 2 4 channels used for EEG Blink when nlR pIR pulse baseline search for nominal value of 100 is under way Fast Flash indicates that User Defined configuration of the Cap is currently being programmed E wiz TRANSMIT blue On Steady sending to Application via USB On Blink sending wirelessly Off Blink not transmitting to Applicati
23. re set Mode for recovery should firmware become corrupted e Link green amp Freeze blue button e short press controls linking of EEG references and 8 LED initiates nIR pIR pulse HEG baseline search e in Mode 0 and wireless transport increments rf channel in USB Transport use Application to change wireless channel if required e in Mode 0 and USB transport toggles between USB transport only and USB and wireless transport concurrently Transport LED blinks with wireless channel number when wireless is active link e long press controls freezing and unfreezing EEG DC removal freeze pressed at power up initiates Signal Generator button mode there is no Power On button for the Q wiz both Mode amp Link Buttons together e to exit Signal Generator Mode or simply remove the power from the unit amp re start e when in Q menu mode Program Mode pressing the Link and Mode button enters exits programming of the User defined switching of the Cap see section of the Q menu E wiz e Mode button green e short press sequences thru Modes e pressed at power up enter fail safe mode Operates with base feature set Mode for recovery should firmware become corrupted e Link green amp Freeze blue button e short press controls linking of EEG references in Mode 0 and wireless transport increments rf channel in USB Transport use Application to change wireless channel if required
24. spective slowly varying DC signal with the nominal value of 100 being centered on the display If both pIR and nlR HEG headbands are connected then the nIR signal appears on transport Slot 1 and is displayed In nlR HEG mode the LED display range covers 80 to 120 and in plIR HEG mode the range is 95 to 105 Again if the 8 LED display range is exceeded this may or may not be an issue since the operating range of the Wiz is greater than this Dithering of the 8 LED display allows for a sensitive continuously varying signal Thus the Wiz can be used as a standalone biofeedback trainer for slowly varying DC bio signals such as HEG 10 EEG Cap Interface Q wiz only The Q wiz features an interface to a 21 channel EEG cap Electrocap and Deymed caps are compatible altho the latter is compatible for 19 ch montages only The Cap can be used for assessment or training and the multiplexing of the 21 channels of the Cap onto the 4 slots of the Q wiz can be controlled by the PC Application if it is so capable Since there are 21 EEG sites available to the CAP and just 4 slots to the PC Application there is a choice of which site is to go to which slot Each Slot can accept one or more of 8 possible Cap sites Thus we speak of multiplexing Cap sites onto available slots and of a mapping of sites onto slots The EEG Cap and it s 25 pin D connector are active and connected whilst the Q menu is active The Q menu is activated by a_long_ press of t
25. urrent User defined mapping as described above pressing _first_ the Link button and then momentarily the Mode button enters a mode for Programming the User Defined mapping To signify this the HEG LED flashes rapidly This process erases previous User defined mapping The Mode LED will begin blinking _once_ to indicate that we are currently programming the mapping of EEG Cap locations to Slot 1 The first of the 8 LEDs is lit In this Programming Mode _short_ presses of the Mode button will sequence through the choices of Cap location available whilst momentarily pressing the Link button will save that Cap location to the current Slot Multiple EEG Cap sites can be selected for a single Slot The default User Defined mapping maps each quadrant of the scalp to the four slots Note that not all Cap locations are available to all slots The possible choices are those listed to the _right_ of the respective 8 LED and in the table below By cycling through programming the four slots and returning to a previously programmed slot re selecting a particular Cap site will erase that site Similarly if a location is accidentally selected selecting it again will un select This happens in real time so selections appear instantly on the Cap interface To exit and save the new mapping as a new User Defined mapping press the Link button followed by and together with a momentary press of the Mode button The rapid flashing HEG LED will extin
26. v1 2 first draft v1 3 second d Quick With successful Wiz by Pocket Neurobics Bio Signal Acquisition since 2000 USER MANUAL added USB amp concurrent wireless transport mode raft added E H W N Wiz to product suite Start Install PC Application BioExplorer BioEra etc needs to be latest version see copy on CD plug Q E H wiz into USN port and allow Windows to search for Pocket Neurobics driver in it s on line repository or for W N wiz plug PN wireless dongle into USB port as part of the Windows driver installation procedure note the COM port number assigned to the Pocket Neurobics device by Windows only if driver installation fails try the manual driver executable on the PN CD under utilities transfer illustrative BioExplorer and BioEra designs into respective directories on your PC transfer media resources video and audio files into respective directories on your PC open the PC Application go to Device Configuration enable the PN Wiz driver and configure it for the COM port assigned by Windows open the illustrative design Wiz_Test installation the Application should show the Wiz s start up test sequence for the seconds after it is powered on Feature Set Feature Set Wiz Model Q E H WwW N Modes 0 4 0 3 0 2 0 3 0 2 Maximum sampling rate per slot 512sps 512sps 128sps 512sps 128sps 4 slots x 2 slots x x X X X EEG ECG EMG SCP X X X NIR PIR Pulse X x NIR X X X Wireless amp
27. ve infrared hemoencephalography one channel e pulse oximeter sensing the pulse rate EEG SCP ECG and EMG all use the same silver or silver silver chloride electrode interface whereas nIR and pIR HEG blood oxygenation sensors use special headbands The nlIR HEG sensor input can also accept a pulse oximeter input The Q Wiz supports all modalities and up to 4 slots whereas the E wiz and the P wiz support the AC modalities and the H wiz and the N wiz sport DC modalities and the latter four devices support 2 slots Wiz devices automatically detect when a headband or finger sensor is connected and reconfigure accordingly When only one modality is used it will appear on slot 1 For devices that support both AC and DC modalities namely the Q wiz when no headbands or finger sensors are connected slots will default to AC ie 2 or 4 channels of EEG etc The PC Application will automatically detect which modality is assigned to which slot and adjust accordingly The Q wiz supports all Modes and other devices in the suite support Modes 1 3 or Modes 1 2 The mapping of Modality into transport slot changes according to which headband or finger sensor is connected and which Mode is selected Mode Slot Slot Slot2 Slot3 Slot4 lt Mode 1 gt 32sps used for HEG and EEG protocol processing future lt Mode 2 gt 128sps Hi resolution EEG and HEG lt Mode 3 gt 512sps EMG ECG and SCP and EEG if mixed modalites no headband sensed EEG
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