Biopac Student Lab Tutorial
Contents
1. The time stamp is the clock icon at the top left of the Journal window When you click on the clock icon the current time according to your computer s System clock will be entered in the Journal at the cursor point 10 36 20 AM The date stamp is the calendar button to the right of the time stamp When you click on the calendar icon the current date according to your computer s System calendar will be entered in the Journal at the cursor point E Tuesday December 30 2003 It s possible to write anything you want directly in the Journal Just click on the Journal window and place the cursor at the point you wish to begin typing Tuesday December 30 2003 11 12 15 AM The Journal uses standard text entry just click where you want to enter text and start typing Visualize whirled peas You can also paste measurements or wave data using the Edit gt Journal options When you use the Paste Measurement function all the pop up measurements showing a value will be written to the Journal TIP Use the none measurement option when you don t want a measurement pasted to the Journal To paste a pop up measurement into the Journal 1 Select the channel you want to measure by clicking on it with the Selection tool or use the cursor to pick the correct channel number in the boxes just left of each of the pop up measurements 2 Choose the appropriate pop up measurement 3 Use the I beam to2. Paste Measurement Ctrl M Paste Wave Data Mean 1 9 18338 Kg Mean 40 0 25465 mY The Paste Wave Data function will write all the points that make up the data in the selected wave area to the Journal Note It s very easy to put a lot of data into the Journal using this command One second of a wave that was sampled at 200 Hz will paste 200 numbers into the Journal To paste wave data into the Journal a Select the channel you wish to measure by clicking on it using the Selection tool or use the cursor to pick the correct channel in the channel boxes just left of each of the pop up measurements This will activate the Data Window b Use the I beam tool to select the portion of the wave you are interested in c Pull down the Edit menu and scroll down to Journal then scroll right to Paste Wave Data Paste Measurement CErl M Paste Wave Data OE Sec Force EMG Integrated EMG 16 78 20 993 0 39209 0 686493 16 782 20 993 0 301025 0 683973 The Journal file is saved in standard text format and can be exported to word processing or spreadsheet programs or any application that accepts Text or ASCII files To export Journal text and or data to another program a Open the BSL file b Select the desired Journal text c Choose Edit gt Copy to copy the Journal text d Switch to the other program 30 Biopac Student Lab e Choose Edit gt Paste to paste the copied data Note When you plan to place the data i
3. To take a measurement from another Lin_reg channel simply click on the desired Slope channel box or click anywhere l within the data region for the desired iezim channel using the selection tool e El gp J ft 95729 mv Delta T SC Selected Channel Freq Chi Force EPM Ch3 EMG Samples ____ amp h40 Integrated EMG Delta 5 Channel select options T Median The measurement type box is a T Max pop up menu next to each channel T Min number box that allows you to EN choose from 23 Biopac Student Lab ee measurement functions or none The measurement result is the value that the measurement calculates Measurement type options 16 29 Read about Measurement Tools to the right The Selected Area 30 Read about the Selected Area to the right Select a single point area 31 Click on the I beam Icon 32 Move the cursor over a point on the data 33 Click on the mouse button A flashing line should appear at the cursor position 34 Click on the selection tool icon to deactivate the point Biopac Student Lab To use the measurement tools you must a Set the channel measurement box to the desired channel b Select a measurement type from the pop up menu c Select an area for measurement Note that you can perform these elements in any order but all three must be completed to achieve a valid measurement Two important points regarding measurements 1 The first is that the measure
4. area including the endpoints Basic Tutorial 21 Measurement Tool Median shows the median value from the selected area Note The median calculation is processor intensive and can take a long time so you should only select median when you are actually ready to calculate Until then set the measurement to none The mean measurement computes the mean amplitude value or average of the data samples between the endpoints of the selected area and displays the average value The minimum measurement finds the minimum amplitude value within the selected area including the endpoints Selecting none turns off the measurement channel and no result is provided It s useful if you are copying a measurement to the clipboard or journal with a window size such that several measurements are shown and you don t want them all copied The p p peak to peak finds the maximum value in the selected area and subtracts the minimum value found in the selected area P P shows the difference between the maximum amplitude value in the selected area and the minimum amplitude value in the selected area The Samples measurement shows the exact sample number of the selected waveform at the cursor position Since the Biopac Student Lab handles the sampling rate automatically this measurement is of little use for basic analysis The slope measurement uses the endpoints of the selected area to determine the difference in magnitude divided
5. Autoscale Waveforms Autkoscale Horizontal zoom Previous zoom Next The Arrow I Beam and Zoom tools are inactive greyed during recording but can be used between segments while in the Recording mode The Display menu items are also available To repeat the last recorded section and erase the old data click on Redo e The Redo feature is very handy and should prevent you from panicking during the recording You can redo a recording segment if something goes wrong or if you realize you have not performed the proper tasks If you are finished with the data recordings click on Stop Click the Done button in the Lesson display to generate the closing options dialog Basic Tutorial 7 Save the recorded lesson data Review Saved Data Mode for Data Analysis 39 What would you like to do now x Record fram another Subject Analyze current data file Analyze another data file Record another Lesson Copy to Floppy or Network uit Record from another subject will return you to the first screen of the lesson Repeat the necessary set up type in a new Subject name and repeat the entire recording Depending on the lesson you may or may not have to redo the calibration Analyze current data file will switch you to the Review Saved Data mode and will automatically open the last recorded data file Analyze another data file will switch you to the Review Saved Data mode and will prompt you to find an
6. BSL Lessons fay Tr wif To launch the program use desktop icon or use the Windows Start menu click Programs and then select i fopac Student Lab Ct BSL PRO 3 7 2 x LA User Support File name Files of type Lesson Files Cancel If the program was installed with the hardware option but there is no hardware connected the following dialog may be generated Biopac Student Lab i The program cannot find the hardware To analyze saved data fusing software only click on OR To run the lesson check MPSD bower and connections and click on Retry Retry Open the Data Files folder which is in the Biopac Student Lab program folder Open CS Look irr E BSL Lessons 3 7 qa e EJ JESL Videos Data Files LA User Support File name Files of type Lesson Files Cancel 6 Biopac Student Lab Open the Sample Data folder which is in the Data Files folder Select and open the SampleData L02 file which is in the Sample Data folder E Sample Lesson Data SanpleData Loz a SampleData LO7 Lesson Files nal Basic Tutorial 7 BSL Display The display includes a Data window and a Journal and both are saved together in one file e The Data window displays the waveforms and is where you will perform your measurements and analysis e The Journal is where you will make notes You can extract information from the Data window and put it in the Journa
7. Diving a little deeper into what a waveform represents you are actually looking at data points that have been connected together by straight lines These data points are established by the Biopac Student Lab hardware by sampling the signal inputs at consistent time intervals These data points can also be referred to as points samples or data The time interval is established by the sample rate of the BSL hardware which is the number of data points the hardware will collect in a unit of time normally seconds or minutes The BSL software stores these amplitude values as a string of numbers Since the sample rate of the data is also stored the software can reconstruct the waveform e Sampling the data is very similar to how a VCR records images from a camera by taking snapshots of the image at specific time intervals When it plays back the tape it displays the captured images in quick succession and our eyes can t see the starting and stopping Likewise when you look at the waveform you see a continuous flow rather than the data points and straight lines The Biopac Student Lab Lessons software always uses the same sample rate for all channels on the screen so the horizontal time scale shown applies to all channels but each channel has its own vertical scale A channel s vertical scale units can be in Volts milli Volts degrees F beats per minute etc A baseline is a reference point for the height or depth amplitude of a wave
8. EMG Integrated EMG 4 526 0 0507694 0 0258789 0 0121948 4 528 0 0507694 0 0224609 0 0123364 4 53 0 0507694 0 0141602 0 0124744 4 532 0 0507694 0 00268555 0 0124585 4 534 0 0507694 0 0090332 0 0124524 Copy Graph Use when you want to copy the waveform data as a picture to be imported into other programs The Data Window Copy functions will be applied to the selected area if any If a single point or no area is selected the Data Window Copy functions will be applied to the entire data file Clench 2 u 20 00 10 00 fa mv mo Lu T T z mj T E 6 00 5 00 seconds Paste Measurement Ctrl M Paste Wave Data See the Journal section for details Basic Tutorial Measurement Tool area calculate 19 Definition Area computes the total area among the waveform and the straight line that is drawn between the endpoints Area is expressed in terms of amplitude units multiplied by horizontal units The beats per minute BPM measurement uses the start and end points of the selected area as a measurement for one beat calculates the difference in time between the first and last selected points and divides this value into 60 seconds minute to extrapolate BPM This is the result you would obtain if you took 1 AT 60 for a selected area If more than one beat is selected it will not calculate the average mean BPM in the selected area Note In order to get an accurate BPM value
9. Plots per page and Fit to pages as desired Click OK Review the printed result Biopac Student Lab Print __ plots per page This option determines how each page will be divided up to plot the data displayed in the data window e For example entering 4 will divide each page into four regions The printed data may have an expanded time scale if the printer made adjustments to plot what was viewed on the screen evenly across the specified area Fit to ___ pages This option determines how many pages to use to print what is displayed on the screen e For example entering 2 will print the data displayed in the window evenly across two pages The first left part of the data displayed on screen would print on Page 1 and the second right part would print on Page 2 The software will automatically make the following adjustments prior to printing which may result in slight differences between what is displayed and what is printed e Vertical Scale If a vertical scale in the data window is set to fractional numbers then the software will slightly adjust the scale to use even numbers for print e Markers When markers are displayed on the screen with associated marker text the data will print with the marker text directly above the appropriate marker and a dashed vertical line will run through the data to indicate the marker s precise point in time If the data is compressed the markers and or marker
10. Student Lab Display Tools The BSL allows you complete flexibility in how the data is viewed Chart recorders lock you into one view but with the BSL you can expand or compress the visual scales to aid in data analysis The Data window display is completely adjustable which makes data viewing and analysis easier e View multiple channels or hide channel s from the display view e Zoom in on specific segments to take measurements examine anomalies etc e View the entire record at one time to look for trends locate anomalies etc Editing and Selection Tools A good starting point is to understand the editing and selection tools In the lower right of the data window there are three icons representing the 8 Locate the editing and 5 Arrow I Beam and Zoom tools selection tool icons in the lower right of the Data Window To select any of these tools simply click the mouse on the desired icon and it will appear recessed to indicate it is active the Selection tool is active recessed in the picture above Each tool activates a different cursor in the display window i Arrow cursor T beam cursor A Zoom cursor Active Channel STEE Channel boxes are in the upper left of the or E data window They enable you to identify se CNES E Ua i the active channel and hide channels from that the active channel Forearm 1 Increasing clenc view So as to concentrate on or print out e The channel box of the only specific waveforms at
11. a diamond above the marker text box and are blue when active Append markers are automatically inserted when you begin each new recording segment and are marked with time data Forearm 1 Increasing clench force Event markers Appear as inverted triangles below the marker text region and are yellow when active Event markers can be manually entered during or after recording by pressing F9 and are pre programmed for some lessons x Clench 1 The marker that is darkened colored is the active marker for which the marker text shown applies You may add markers to your data after it has been recorded simply by clicking within the marker region using the selection tool This new marker will then become the current active marker and you may type in the marker text box ENTER TEXT HERE 4 gt 20 00 15 00 1000 5 00 0 00 Active Event Marker All Event Markers All Markers Event Markers Append Markers Summary to Journal 4 Event Marker q Append Marker Preferences Click on the right pointing marker tool to move to the marker that was placed after the current active marker 1f one exists Notice the marker label and the data position Click on the left pointing marker tool to move to the marker that was placed prior to the current active marker if one exists Notice the marker label and the data position Click on the downward pointing marker tool to generate a pop up menu
12. a time active channel will be generated to be recessed and the label for the active channel The display can Show one or more data channels but only one channel can be active at any time The active channel box appears recessed will be highlighted on the left edge of the The Label for the active channel is channel display displayed to the right of the channel boxes and highlighted in the display region e You can also click on the channel label to make a channel active 10 Click in the CH 40 box and note how the label changes E Mis CH 1 active CH 3 and CH 40 shown note Force is highlighted on the left edge Integrated EMG CH 1 and CH 3 shown CH 40 active Show Hide a channel 11 To Show or Hide a channel When you Hide a channel the data is not lost but simply hidden so that hold the Ctrl Control key you can focus on specific channel s Hidden channels can be brought back down and click on the Channel into view at any time The channel box displays slash marks when it is box hidden a Hide CH 40 Basic Tutorial b Show CH 40 ae H Force C Hide CH 40 aps iatis SampleData Lo2 BE MEE e Showing a channel Een OE De Oe Enja enables the channel display but does not am make it the active channel e Hiding an active channel does not prevent it from being the active channel Show Hide Grid Display Another powerful feature is the ability to Show or H
13. are desired Basic Tutorial 15 Measurements Measurements are fast accurate and automatically updated The measurement tools are used to extract specific information from the waveform s Measurements are used in the Data Analysis section of every lesson so understanding their basic operation is important Let s say you wanted to know the force increase between two clenches in the EMG data You could get a rough estimate by eyeballing the amplitude of the peaks on the vertical scale or by measuring the peak of one and the peak of the next and manually calculating the difference Or you could take a much easier and more accurate reading with the delta measurement of the Biopac Student Lab You can use software shortcuts to paste measurement data to the journal or copy waveform data for further analysis in other programs such as Excel a deta 6 40057 Ka SC C none Ec C none hon Hege Force Forearm 1 Increasing clench force L bp 4 96729 mv Measurement Region Channel select Measurement type Result The Channel select box includes None options for all channels whether Value shown or hidden and an SC Delta measurement option The SC P P performs the measurement on the Max active channel and is a quick way to Min step through multiple channels The Mean SC option allows you to make Stddew quick measurement comparisons Integral between channels using one region Area
14. as shown above and drag to select an item or generate a sub menu The marker menu allows you to Find certain markers by entering the marker text you want to locate Basic Tutorial 54 55 56 ae If prompted click OK to restart marker search from the beginning of the record Select the Clear option to delete the Test marker Select the Summary to Journal option Select the Show option Review the list of marker labels at the bottom of the menu and scroll down to select Clench 4 23 2 x Cancel Find what Selecting Find again will move to the next marker with the same label if one exists Biopac Student Labi x _ 7 The last Marker has been Found Do wou want to continue searching at the First marker E Biopac Student Labi xX The search text is not found You cannot clear Append Markers so these options only apply to Event Markers Clear Active Event Marker will delete the active Event Marker if one is selected and Clear All Event Markers will delete all Event Markers in the file You cannot undo a Clear function so use caution when selecting these functions These options will paste marker information to the Journal and format the data with an Index Time and Label The All markers option will list markers by time which may mix the Event Markers with Append Markers Sia Markers Summary Append Markers Marker Index Timeisec
15. the file with the existing file name and location Save As To take data home for analysis use this option Creates a copy of the original file and prompts you for a location to save the copy to floppy network or other media 90 Pull down the File menu and The save is automatic no dialog or confirmation is required select the Save changes option 91 Pull down the File menu and The following dialog will be generated so you can designate a select the Save As option location for the file Basic Tutorial 31 Please designate a location _ x Save in a SampleData ci E a8 SampleData Lo SampleData LO File name Sampled ata L02 Save as type Lesson Files Cancel File name cannot be altered from the original name This allows the Review Saved Data mode to work correctly Save as type is locked on Lesson Files which is the original way the file was saved and is the waveform display you normally see on screen This mode copies the journal text as well The Save button instigates the Save function 92 Read about the Print functions to the right TIP It s always a good idea to Save before printing Print Graph IMPORTANT The printer only works with the data shown in the data window which often is not the complete data file You control how the data is presented on the printed page by controlling how it is displayed on the screen prior to selecting Prin
16. the lesson number This extension is very important because the software will key off this extension and open up different tools for the Review Saved Data Mode depending on the lesson Other lesson data files that use the same name will be placed in this same folder but the software will never allow you to save a data file with the same name and lesson number As a general note because the Biopac Student Lab software automatically is saving the files you must exercise caution when moving things around into different folders It is recommended that you never place other files or folders in the Biopac Student Lab folder and never take files or folders out of the BSL 3 7 folder with the exception of removing data files from the Data Files folder Basic Tutorial 5 Follow the instructions in the lesson manual and in the Journal or proceed as directed by your instructor 6 Step through the lesson as guided in the Lesson manual or by your instructor Calibrate 37 Eign Shakan Labh lean Ainiin ah E lel xj Fie Liis pag 375 TEA Was k I EL a l Lesson 1 Electromyography EMS Version 3 7 0 0002003 Plug the electrode leads 2220 into CH 3 connect the electrodes following the besson manual and plug the headphones OUT 1 inte the Analog Out port on the back of the MPSS unit rj m sic nreaay cick on Lainate The recording section is very detailed and includes sample screen shots for c
17. track TIP Selecting Autoscale Horizontal and then Autoscale Waveforms from the Display menu is the standard way to quickly and easily return to your original data display and view 11 2000 A similar scroll bar can be found next to the 1e m vertical scale This is the Vertical Scroll Bar 10 00 and it allows you to reposition the waveform in aan the active channel The Vertical Scroll Bar runs along the entire right edge of the display window sala but only applies to the active channel which is Scene only a portion of the display if more than one ae channel is displayed The Vertical Scale Range for the active channel an changes when you reposition a waveform to 0 10 reflect the displayed range Ome OE Bee He El Display Lessons Autoscale Waveforms Autoscale Horizontal foom Previous coon Next Autoscale horizontal from the Display menu is a quick way to fit the entire waveform within the data window That is it will adjust the horizontal scale such that the left most portion of the screen is the start of the recording and the right most portion is the end of the recording The time per division setting will not necessarily be even numbers but you can adjust that 20 00 al 15 00 10 00 Kg 5 00 0 00 12 the entire record at once Biopac Student Lab Fin Edt lay eens Dewan st Hopa Student Lobe SanpleData Loz s ee 7 mn DE ten OO Al m
18. you must select an area with the I Beam cursor that represents one complete beat to beat interval One way to do this is to select an area that goes from the peak of one cycle s R wave to the peak of the next cycle s R wave R R interval Calculate can be used to perform a calculation using the other measurement results For example you can divide the mean pressure by the mean flow When Calculate is selected the channel selection box disappears FE oresrienv Elk The result box will read Off until a calculation is performed and then it will display the result of the calculation As you change the selected area the calculation will update automatically To perform a calculation Ctrl Click or on PC right mouse button click on the Calculate measurement type box to generate the Waveform Arithmetic dialog Waveform Anthmetic SOUrce 1 Operand SOUFCe 2 Nome fi Division none Constant 0 00000 Units Cancel Use the pull down menus to select Sources and Operand Source Operand NONE Addition subtraction A i Multiplication Row A Col 3 L Division r Measurements are listed by their position in the measurement display grid 1 e the top left measurement is Row A Col 1 Only active available channels appear in the Source menu You cannot perform a calculation using the result of another calculation so calculated measurement channels are not available in the Source men
19. Label Segment 1 0 0000 Forearm 1 Increasing clench force Segment 2 20 0620 Forearm 1 Continued clench at maximum force Event Markers Marker Index Timeisec Label Event 1 1 0260 Clench 1 Event 2 49780 Clench 2 Event 5 10 0180 Clench 3 Event 4 15 3600 Clench 4 Event 5 20 0380 Start continuous max clench Generate a list of markers Drag to select a marker and jump to it in the display All the marker labels in the record will be listed at the bottom of the menu The SampleData L02 file has two markers You may go to a particular marker by scrolling down to select its label e Moving to different markers using this menu may not seem very relevant for the SampleData L02 file but when a lot of data has been recorded it can be a very useful tool 24 58 Select the Preferences option 59 Click on the File menu and review the options 60 Click on the Edit menu and review the options and sub options 61 Click on the Display menu and review the options Biopac Student Lab Marker Preferences i x Append Markers Event Markers Sequential For Marker summary in Journal Event Markers Fixed Journal Summary M Separate Append and Event Marker summaries iM Include header Sort by Time from start of record Use the Journal Summary tab to set options for ordering and formatting the Summary to Journal option Note The rest of the Marker Preferences are advanced functions
20. OI EMG I Electromyography LOZ EMG II Electromyography Biopac Student Lab 25 LOS EEG I Electroencephalography LO4 EEG II Electroencephalography LOS ECG I Electrocardiography LO6 ECG II Electrocardiography LO ECG amp Pulse LOS Respiratory Cycle I LOS EDA amp Polygraph L10 EOG I Electrooculogram L11 Reaction Time I L12 Pulmonary Function I L13 Pulmonary Function II L14 Biofeedback L15 Aerobic Exercise Physiology L16 Blood Pressure L17 Heart Sounds L20 Spinal Cord Reflexes Review Saved Data BSL AnalysisMode File Edit Display Lessons Help Save Changes Save S Print Ctrl P Printer Setup Display Preferences Journal Preferences uit Ctrl g Display Lessons Help Autoscale Waveforms Autoscale Horizontal oom Previous oom Next Refresh Graph BSL PRO Analysis Mode File Save Cbrl 5 Save AS Print Ctrl F Printer Setup Preferences d Quit Ckrl 0 About Biopac Student Lab Display Tile Waveforms Autoscale waveforms ie ze Ranges eran Wavetorns Compare Waveforms Auboscale Horizontal Zoom Previous Reset Chart Display Set Wave Position Statistics a Size Window Biopac Student Lab Rant Una Sanit Onda ie trie Paste tre Data Window FIR F Digital Filters P Basic Tutorial 27 63 Read about the Journal to the right 64 Click anywhere in the Journal window to activate i
21. P30 power and connections and click on Retry Retry Type in your name so the BSL System can store all of your data files in one place and make it easier for you to retrieve data later on Biopac Student Lab Please type in your file name You can enter your real name a nickname or the name of your group if you are working with other students Select and type in a unique identifier such as the Subject s nickname or student I D your full name or some combination of your name and other letters and or numbers like JohnF or John3 It is a good idea to use the same log on name for each lesson Be sure to write down the log on name you choose so that you can keep track of where your data is stored The Biopac Student Lab software will let you use the same name ten times If there are a lot of other students using your computer and you try to log on with a general name John vs JohnF there is a good chance the Biopac Student Lab software will ask you to use a different name Biopac Student Lab l amp folder with this name already exists Would you like to use it or en alee create a new folder Use it 36 Biopac Student Lab If you know the existing folder is your own select Use it This is a convenient way to ensure that all of your lesson files for the class term are stored in one folder If you Rename the folder just add a character to the last name you used 1 e Lauren becomes Lau
22. S ABIOPAC GP Systems Inc BASIC TUTORIAL amp Biopac Student Lab File Name SampleData L02 File Edit Display Lessons Help Overlap EN e mes e Force lt Forearm 1 Continued clench at maximum force Ww T D l 5 D 16 00 20 00 24 00 seconds Lesson 2 Electromyography EMG Il File name SampleData LO2 Monday Oct 02 2006 04 35 58 PM First procedure Forearm 1 dominant Increase clenches in increments of 5 Kg until maximum clench force is obtained Manual Revision 3 7 3 Second procedure Forearm 1 dominant Continued maximal clench until fatigue causes 50 reduction in measured force 090208 Welcome to the Biopac Student Lab 2 Jocelyn Mariah Kremer Biopac Student Lab System 2 Documentation The Body Electric 3 BIOPAC Systems Inc Waveform Concepts 4 Sample Data File 5 William McMullen BSL Display 7 Vice President Display Tools 8 BIOPAC Systems Inc Scale amp Grid Controls 14 Measurements 15 Markers 22 Menu Options 24 Journal 27 BIOPAC Systems Inc _ 72e Pata av 42 Aero Camino Goleta CA 93117 Printing 31 Phone 805 685 0066 Quit BSL 33 Fax 805 685 0067 Running a Lesson 34 ee eee Lesson Specific Buttons 40 www biopac com 2 Biopac Student Lab Welcome to the Biopac Student Lab This short Tutorial covers basic concepts that make the Biopac Student Lab System unique and powerful and provides detailed instructions on how to use important features of the program for d
23. adphones connection cables wall transformer and other accessories HOW THE BIOPAC STUDENT LAB WORKS One way to think about how the Biopac Student Lab works is to think about it as being like a video camera connected through a VCR into a television set In a general sense a video camera records information about the outside world and then converts the images it collects into an electronic format that can be passed to the VCR and television The images the VCR captures are stored on videotape to be archived or viewed at a later date Like a video camera the Biopac Student Lab records information about the outside world although the types of information it collects are different Whereas cameras record visual information the Biopac Student Lab records information signals about your physiological state whether in the form of your skin temperature the signal from your beating heart or the flexing of an arm muscle Basic Tutorial 3 This physiological information is transferred via a cable from you or whomever the information is being recorded from to the Biopac Student Lab The type of physiological signals you are measuring will determine the type of device on the end of the cable When the signal reaches the Biopac Student Lab it is converted into a format that allows the data to be read by a computer Once that is done the signal can be displayed on the computer screen much like the video images from the camera are displayed on t
24. and the primary objective of the Analysis is to help you understand the data and the physiological concept it represents Lessons are set up so that you can record data in the lab and then analyze the data after class in the lab or at home FAST TRACK Detailed Explanation of Steps This side of the lesson left shaded This side of the lesson contains more detailed column is the FAST TRACK through information to clarify the steps and or concepts in the the lesson which contains a basic FAST TRACK and may include reference diagrams explanation of each step illustrations screen shots and or references to this manual Although it is not absolutely necessary BIOPAC recommends that students work in groups of at least three Students should choose a Director a Recorder and a Subject from their lab group before beginning Set Up which often involves the Subject Director The Director reads the lesson steps and tells the Recorder and Subject what to do The Director also keeps track of the length of time for each condition Recorder During the recording session the Recorder will insert a marker press F9 on PC or Esc on Mac whenever the Subject is requested to do something and will key in the condition to create the marker label The recording step will indicate what to key in Note that marker text can be added or edited after the recording is complete Subject This is the person from whom data will be recorded The Subject w
25. ata recording and analysis You are encouraged to open the Sample Data File and follow along as you complete the Tutorial Have fun experimenting with the display and analysis functions of the Biopac Student Lab interacting with the software as the Tutorial explains functionality will ease the learning curve For more information see your instructor or review the Software Guide Biopac Student Lab System The Biopac Student Lab System is an integrated set of software and hardware for life science data acquisition and analysis Biopac Student Lab Software Biopac Student Lab Hardware MP3X Acquisition Unit pr a ee is ae Ed a te ee eee mpi a mri Thru 4 arn 5 j En ro Bb B gt oe 1 era Gog Pied ia wee wet The inputs on the MP acquisition unit are referred to as Channels The channel input ports are on the front of the MP3X unit and are labeled CHI CH2 CH3 and CH4 Th Analog Out port on the back of the MP3X Unit allows signals to be amplified and sent out to devices such as headphones on the MP36 Analog Out is a built in low voltage stimulator Software The Biopac Student Lab software includes 18 guided Lessons and BSL PRO options for advanced analysis The software will guide you through each Lesson with buttons and text and will also help you manage data saving and data review Hardware Includes the MP3X Acquisition Unit MP36 MP35 or MP30 electrodes electrode lead cables transducers he
26. buttons under the menu bar for features appropriate to the lesson signal and or protocol The following buttons are not in the sample file so just read about them below Listen Overlap Split Adjust Baseline Exit Up Alpha Beta Delta Theta The Listen button allows you to listen to the signal as output if you have headphones or other listening hardware connected The Overlap and Split buttons allow you to merge or separate the data channels tracks in the display window Ee Gat Dapy Laere an em kj OIL EL aj m Fie ER Ceili Lier vae les KL CT CQ Gere Eline ms nb 2a a ne O1 On Hi aa parz 1 1 eee Ih HE al H G You cannot successfully apply grids after the Overlap function is activated Grids can change the scale so begin in the Split mode then apply grids then Autoscale then apply the Overlap The Adjust Baseline button is only used in Lesson 5 ECG I and it allows you to position the waveform up or down in small increments so that the baseline can be exactly zero This is not necessary to get accurate amplitude measurements but may be desired before making a printout or when using grids When you click the Adjust Baseline button Up and Down buttons will be generated Simply click on these to move the waveform up or down The Exit button will close the Adjust Baseline options and return to the waveform display These buttons are in Lesson 3 and w
27. by the time interval The slope measurement returns the unstandardized regression coefficient which describes the unit change in Y vertical axis values per unit change in X horizontal axis This value is normally expressed in unit change per second rather than sample points since high sampling rates can artificially deflate the value of the slope When the horizontal axis is set to display either frequency or arbitrary units the slope is expressed as a unit change in vertical axis values per change in Hertz or arbitrary units respectively When an area is selected the slope measurement computes the slope of the line drawn as a best ft for all selected data points stddev Stddev standard deviation is a measure of the variability of data points that computes the standard deviation value of the data samples in the selected range The advantage of the stddev measurement is that extreme values or artifacts do not unduly influence the measurement T max T max shows the time of the data point that represents the maximum value of the data samples between the endpoints of the selected area T median T median shows the time of the data point that represents the median value of the selected area Note The median calculation is processor intensive and can take a long time so you should only select median when you are actually ready to calculate Until then set the measurement to none T min T min shows the tim
28. d open a data file for review Record Another Lesson will generate the lessons menu Copy to Floppy or Network will generate a Save dialog allowing you to designate the location to save the file to Note that you cannot change the File name Quit will close all lesson windows that are open and then exit the Biopac Student Lab program Each student s recording is automatically saved at the end of each lesson recording You do not need to resave files unless you significantly alter the data window settings or make a change to the Journal while in the Review Saved Data mode You will be prompted to save changes Biopac Student Lab x 2 The LO1 EMG 1 graph has changed Do you want to save the changes w ee Data Analysis is where you analyze your data to pull out measurements that reinforce the concepts presented in the Introduction Analysis can be done right after the data is recorded or can be done off line on another computer the hardware does not need to be attached The analysis should be done after all students have recorded their data Measurements taken in the Analysis section are to be placed in the Data Report section and may also be placed in the on screen journal for saving and printing Whenever a measurement needs to be placed in the Data Report a reference icon will direct you to the proper section of the Data Report 40 Biopac Student Lab Lesson Specific Buttons Some lessons have extra
29. e of the data point that represent the minimum value of the data samples between the endpoints of the selected area x axis T The Time measurement shows the exact time of the selected waveform at the cursor time position If a range of values is selected then the measurement will indicate the time at the last position of the cursor The value measurement displays the amplitude value for the channel at the point selected by the I beam cursor If a single point is selected the value is for that point if an area is selected the value is the endpoint of the selected area 22 Biopac Student Lab 46 Read about Markers to the right Add a marker 47 Use the selection tool to click 48 in the marker region to the right of the Clench 3 marker to add a new marker Label the new marker test marker by entering text at the flashing cursor in the marker text region Select a marker You may change the active marker by using the marker tools on the right edge of the marker region 49 50 SL OV a3 Click on the right pointing marker tool Click on the left pointing marker tool Click on the downward pointing marker tool Pull down the downward marker arrow and select the Find option Enter Clench 4 when prompted and click on Find Next Markers are used to reference important locations in the data There are two types of markers Append markers Appear as
30. easurement is the difference in time between the end and beginning of the selected area freq The Frequency measurement converts the time segment between the endpoints of the selected area to frequency in cycles sec The Freq measurement computes the frequency in Hz between the endpoints of the selected range by computing the reciprocal of the AT in that range It will not calculate the correct frequency if the selected area contains more than one cycle You must carefully select the start and end of the cycle Note This measurement applies to all channels since it is calculated from the horizontal time scale integral Integral computes the integral value of the data samples between the endpoints of the selected area This is essentially a running summation of the data Integral is expressed in terms of amplitude units multiplied by horizontal units This plot graphically represents the Integral calculation The area of the shaded portion is the result lin_reg Lin_reg computes the non standard regression coefficient which describes the unit change in f x vertical axis values per unit change in x horizontal axis Linear regression is a better method to calculate the slope when you have noisy erratic data For the selected area Lin_reg computes the linear regression of the line drawn as a best fit for all selected data points pels z The maximum measurement finds the maximum amplitude value within the selected
31. for automating marker creation and labeling your instructor will provide details as needed when you run a Lesson Menu Options File Edit Display Lessons Help Save Changes Save AS Print Ctrl P Printer Setup Display Preferences Journal Preferences uit Ctrl g Biopac Student Lab Sam File Edit Display Lessons Cut Ctrl Copy Er Paste Ctrl Data Window d Journal d File Edit Display Lessons Autoscale waveforms Autoscale Horizontal Zoom Previous Zoom Next Save As allows you to save to your school s network or other media so you can access the file outside of the lab or send Journal reports to your instructor Data Window Copy heasurement Journal Copy Wave Data Copy Graph Paste Measurement Ctrl M Paste Wave Data ane na ennn TIP Use Autoscale Horizontal followed by Autoscale Waveforms to view all the data in one screen and restore the data display to its original state Basic Tutorial 62 Click on the Lessons menu and review the options BSL PRO Note If your instructor set BSL Lesson preferences to activate the BSL PRO software controls in the Review Saved Data mode the menus will include selected PRO options for advanced analysis See your instructor or the BSL PRO Software Guide for functionality details e Lessons menu stays the same e Help menu stays the same e Transform menu is only available in PRO mode Lessons Help L
32. form Se eenden e Amplitude values above the baseline Pe OR spat 661 577 66 9 A appear as a hill or peak and are E M BASELINE i 2 nr pe neta considered positive NA a N p d 4 000000 o _ ee ee e Amplitude values below the baseline nn PN c6 2 66 9 fin ZEN far fan 4 000000 appear as a trough or valley and Y _BASENNE r Fi eo z are considered negative r r 2000000 gt Ki Pl 2 UF 4 4 000000 VOLTS Basic Tutorial 5 Sample Data File This Tutorial is designed for you to follow along with a sample data file on a computer without Biopac Student Lab hardware attached This means that you can complete the Tutorial on a computer outside of the classroom lab perhaps at the library computer lab or home yjust as you will always have those options for analyzing data outside the lab Open the SampleData LO2 file as directed below 1 Turn the computer ON 2 Use the desktop icon or the Windows Start menu to open BSL Lessons 3 7 3 Inthe No Hardware mode the BSL software will open to a standard Open Dialog Note A hardware dialog may be generated e For this tutorial and all future analysis click OK to enter the Review Saved Data mode 4 Open the Data Files folder e The program may open the Data Files for you If so skip to the next Step e For future analysis use this dialog to browse to your data files
33. he television set It takes about 1 1 000 of a second from the time a signal is picked up by a sensor until it appears on the computer screen The computer s internal memory can save these signals much like the VCR can save the video images Like a videotaped record you can use the Biopac Student Lab to recall data that was collected some time ago And like a video you can edit and manipulate the information stored in a Biopac Student Lab computer file The Biopac Student Lab software takes the signal from the MP unit and plots it as a waveform on the computer screen The waveform of the signal may be a direct reflection of the electrical signal from the MP channel amplitude is in Volts or a different waveform that is based on the signal coming into the MP unit e For example the electrical signal into the MP unit may be an ECG signal but the software may convert this to display a Beats Per Minute BPM waveform The Body Electric When most people think of electricity flowing through bodies they think of rather unique animals such as electric eels or of rare events such as being struck by lightning What most people don t realize is that electricity is part of everything our bodies do from thinking to doing aerobics even sleeping In fact physiology and electricity share a common history with some of the pioneering work in each field being done in the late 1700 s by Count Alessandro Giuseppe Antonio Anastasio Volta and Luigi Ga
34. idden when Grids were activated the grid display will show on the channel Show Grids To adjust the grids see Scales amp Grids on page 14 You can move to different locations in the record by using the horizontal scroll bar Since the horizontal scale applies to all channels in view it will move every waveform simultaneously The scroll bar is active when only a portion of the waveform is in view To move forward or backward select and drag the scroll box or click on the left or right arrow For a continuous scroll click on the arrow and hold down the left mouse button a E wel If the entire waveform is displayed the scroll bar will dim a he 1 Ch MCE F Tm In the sample file the horizontal scale represents Time in seconds The software will set the most appropriate Time option for each signal 2 00 4 00 Seconds 12 00 14 00 Seconds Notice the Horizontal Scale range on the bottom changes to indicate your position in the record Basic Tutorial 19 Use the Vertical Scroll to reposition the CH 1 Force waveform e Note that the CH 40 Integrated EMG waveform did not move This is because the vertical scale 1s independent for each channel 20 Pull down the Display menu and select Autoscale horizontal to fit the entire wavetorm within the data window 21 Pull down the Display menu and select Autoscale Waveforms to center waveforms in their display
35. ide the grid display A i Walaa mile cna and grid is a series of horizontal and vertical lines that assist the eye with scroll down to select Display Preferences finding data positions with respect to the horizontal and vertical scales The horizontal grid is the same for all channels since they share the Time base but the vertical grid can be set for each channel EE r Fre EERE Forearm 1 Increasing clench force clench force TT LL m LS LS LS SN FE ES ES ES eS O 00 4 00 5 00 12 00 16 00 20 00 2400 seconds Ei 13 Select Hide Grids to turn the To turn grids on and off in the Review Saved Data mode simply choose grid display OFF and click Display Preferences from the File menu A Grids dialog will be generated OK Make your selection and click OK 14 Review the display without Grids xl grids EE Grigs am B r rte EEE Lg clench force gt 6 00 12 00 16 00 20 00 24 00 Seconds 10 15 Show Grids Scroll Horizontal 16 Locate the Horizontal Scroll Bar at the lower edge of the display 17 Use the Horizontal Scroll to reposition the data with respect to time e Note that both wavetorms moved This is because the horizontal scale is the same for all channels Scroll Vertical 18 Locate the Vertical Scroll Bar along the right edge of the display Biopac Student Lab Note that the Grids display affects all channels If you show a channel that was h
36. igits 2 digits All Channels Cancel Cancel Scale Range Establishes the boundary values to fit in the display window and is useful for highlighting meaningful segments in the waveform For instance e If the signal has a cycle that repeats every 2 seconds you could set the Horizontal Scale Range to at 0 8 seconds to show 4 cycles per screen e If the signal varies from 2 to 2 Volts you could set the Vertical Scale Range to match and optimize the display Grid The Major Division is the interval for the grid line 1 e a horizontal line every 2 seconds or a vertical line every 5 Kg The Base Point is the origin for the grid lines with the Major Divisions drawn above and below horiz or left and right vert to complete the grid Minor Divisions are also drawn in relation to the Base Point if the lesson is set to show them All Channels is a quick way to have the scale setting apply to all of the vertical scales in the data window This is particularly useful when all of the channels are the same type of data i e 2 or 3 channels of ECG data Repeated clicking in the box will toggle the option on or off Precision Establishes the number of significant digits displayed in the Scale region Click and hold down the mouse on the precision number to generate a pop up menu allowing you to make another selection OK Click on OK to initiate the changes made in the dialog Cancel Click on Cancel to if no changes
37. ill filter the signal into the bandwidth for alpha beta delta and theta analysis Basic Tutorial A Legalese Copyright Information in this document is subject to change without notice and does not represent a commitment on the part of BIOPAC Systems Inc This tutorial and the software it describes are copyrighted with all rights reserved Under copyright laws this tutorial or the software may not be copied in whole or part without the written consent of BIOPAC Systems Inc except in the normal use of the software or to make a backup copy The same proprietary and copyright notices must be affixed to any permitted copies as were affixed to the original This exception does not allow copies to be made for others whether or not sold but all of the material purchased with all backup copies may be sold given or loaned to another person Under the law copying includes translating into another language or format Biopac Student Lab Tutorial including all text and graphics are 1998 2008 BIOPAC Systems Inc with all rights reserved Warranty BIOPAC Systems Inc warrants its hardware products against defects in materials and workmanship for a period of 12 months from the date of purchase If BIOPAC Systems Inc receives notice of such defects during the warranty period it will at its option repair or replace the hardware products that prove to be defective This warranty applies only if your BIOPAC Systems Inc product fai
38. ill need to perform the tasks as instructed by the Director It is suggested that the Subject not look at the computer screen while data is being recorded as there tends to be a biofeedback effect that can bias the heart rate To launch the program use the desktop icon or the Windows Start menu and choose Programs and then select Student Lab ALENA lt a BSL Lessons 3 7 BSL PRO 3 7 Basic Tutorial 3 Click on the Lessons menu and select a Lesson e The Review Saved Data option will generate a standard Open dialog so you can select a file for analysis 4 Type in your file name 35 LOT EM Electromyography LO EMG Il Electromyography LOS EEG Electroencephalography LO4 EEG Il Electroencephalography Gut LOS EtG Electrocardiography LOB EC Electrocardiography LOY ECG amp Pulse LOS Respiratory Cycle LOS EDA amp Polygraph Li Eos Electrooculograrm L11 Reaction Time L12 Pulmonary Function L13 Pulmonary Function Il L14 Biofeedback L15 Aerobic Exercise Physiology L16 Blood Pressure L17 Heart Sounds L20 Spinal Cord Reflexes Review Saved Data If the hardware is not connected the following prompt will be generated To run a lesson check the power and connections for the MP unit and then click Retry Biopac Student Lab he g The program cannot find the hardware To analyze saved data using software only click on OK To run the lesson check M
39. l Farce Es 4 5 7 i Eir ke a a EEN oc E mn E o The Autoscale Waveforms option of the Display menu is a very handy tool that performs a best fit to each channel s vertical scale That is it will adjust the Scale and Midpoint of each channel s vertical scale such that the waveform fills approximately two thirds of the available area After autoscaling the Scale will probably not be set to nice even numbers but you can manually adjust the scale to even numbers The Zoom L icon is in the lower right of the data window The Zoom function is very useful for expanding a waveform in order to see more detail If you know the precise section of the waveform that you d like to enlarge you can use the Zoom tool to draw a box around the area E ooo 2 00 16 00 15 00 When the mouse button is released the boundaries of the selected area become the new boundaries of the data window 14 00 12 00 6 00 10 00 seconds 400 6 00 seconds RJT a Basic Tutorial 13 The Vertical Scale will change for the active channel only but the Horizontal Scale will change for all channels since it time is the same for all channels After you have zoomed in on a section of the waveform you may undo the zoom and revert to the scale settings both horizontal and vertical established prior to the last zoom by selecting Zoom previous fr
40. l and you can export the Journal to other programs for further analysis The Biopac Student Lab software has a variety of Display Tools available that allow you to change the data display by adjusting axis scales hiding channels zooming in adding grids etc This can be very useful when you are interested in studying just a portion of a record or to help you identify and isolate significant data in the record for reporting and or analysis The SampleData L02 file should open as shown below Biopat Student Lab SampleData LOZ i O OO Overlap se Dee Oe e Foreanm 1 increasing clench force Si esson 2 Electromyography EMG Il File name SampleData LO Manday September 22 2003 01 02 03 PM First procedure forearm 1 dominant Increase clenches in increments of 5 Kg until maximum clench force is obtained Biopac Student Lab Display Top down the sections of the display are Title Bar BSL program name and file name Menu Bar File Edit Display Lessons Tool Bar lesson specific buttons such as Overlap and Split Measurement Region channel type result Channel Box es and Channel Label s Marker Region icons text and menu Data window waveform display Horizontal scroll for Data Window Display Tools to the right of the Horizontal Scale Selection I beam and Zoom icons Journal Tool Bar Time and Date icons Journal 8 Biopac
41. log will help you prepare for the each segment Read the instructions and click OK to continue 38 Record Redo Calibration Suspend Review Recorded Data Resume Redo Stop Done Biopac Student Lab Biopac Student Lab After Recorder clicks on OK subject should wait two seconds then clench hand tightly then relax clench The calibration routine will stop automatically If your calibration data does not match the sample screen shot provided click on Redo Calibration to repeat calibration and erase the old data If your calibration data matches the sample screen shot click on Record to begin the first recording segment Click on Suspend when you have completed the assigned segment task s e You should click on Suspend as soon as possible once you have completed a segment This is important because every second wasted is memory used up for the data recording The more memory used the slower the program will operate the more disk space will be used up when the data is saved and the more possibility of problems e When selected the Suspend button toggles to Resume When you Suspend recording between lesson segments you can check that you have good data before continuing You may want to check your data by zooming in on a segment taking a measurement adding grids etc Review your data before continuing and read ahead to prepare for the next segment File Display Lessons
42. ls to function properly under normal use and within the manufacturer s specifications This warranty does not apply if in the sole opinion of BIOPAC Systems Inc the BIOPAC product has been damaged by accident misuse neglect improper packing shipping modification or servicing by other than BIOPAC Systems Inc Any returns should be supported by a Return Mail Authorization RMA number issued by BIOPAC Systems Inc BIOPAC Systems Inc reserves the right to refuse delivery of any shipment containing any shipping carton without the RMA number s displayed on the outside The Buyer shall prepay transportation charges to the site designated by BIOPAC Systems Inc BIOPAC Systems Inc makes no warranty or representation either expressed or implied with respect to this software its quality performance merchantability or fitness for a particular purpose As a result this software is sold as is and you the Buyer are assuming the entire risk as to its quality and performance In no event will BIOPAC Systems Inc be liable for direct indirect special incidental or consequential damages resulting from any defect in the software or its documentation even if advised of the possibility of such damages or for damage of any equipment connected to a BIOPAC Systems Inc product Trademarks BIOPAC is a registered trademark of BIOPAC Systems Inc Apple and Macintosh are trademarks of Apple Computer Inc Windows is a trademark of Mic
43. lvani Count Volta among other things invented the battery and had a unit of electrical measurement named in his honor the Volt These early researchers studied animal electricity and were among the first to realize that applying an electrical signal to an isolated animal muscle caused it to twitch Even today many classrooms use procedures similar to Count Volta s to demonstrate how muscles can be electrically stimulated Through your lab work you will likely see how your body generates electricity while doing specific things like flexing a muscle or how a beating heart produces a recognizable electric signature Many of the lessons covered in this manual measure electrical signals originating in the body In order to fully understand what an electrical signal is requires a basic understanding of the physics of electricity which properly establishes the concept of voltages and is too much material to present here All you really need to know is that electricity is always flowing in your body and it flows from parts of your body that are negatively charged to parts of your body that are positively charged Cand Lad As this electricity 1S flowing sensors can tap in to this electrical activity Electricity is part of everything and monitor it The volt is a unit of measure of the electrical activity at any your body does from thinking to instant of time When we talk about an electrical signal or just signal we are d
44. ment only applies to data in the selected area of the waveform that the user specifies 2 The second is that every lesson contains the same measurement options but some may not be applicable to that particular lesson This is because the measurement options are a standard set of tools that are always available much like a scientific calculator contains a standard set of buttons many of which may not be necessary for any given problem The selected area for all measurements is the area selected by the I Beam tool including the endpoints Note that the I beam cursor position when the mouse button was first pressed defines the starting point and the position at release defines the end position of the selected area A critical concept for the measurement tools is that the measurement results only apply to the area established by the I Beam cursor e The selected area can be a single point an area or the end points of a selected area e If there is no point or area highlighted on the screen then the measurement results are meaningless e A result of means the selected area is not appropriate or sufficient for the measurement e Itis up to you to select a point or an area with the I Beam cursor as the software will never do it automatically lolx File Edit Display Lessons Overlap Split Ome See me Force Forearm 1 Increasing clench force 4 gt Integrated EMG 00 seconds Yo
45. nto a spreadsheet it s usually a good idea to remove any extraneous comments so you just have rows and or columns of numbers Saving the Journal Use the File menu Save options to save the Journal The Journal and 86 To save with the existing file Graph files are linked and will be opened and saved together name and location click on the File menu and select Save Changes 87 To save with a new file name and or location click on the File menu and select Save AS Save Data 88 Read about the Save Each student s recording is automatically saved at the end of each functions to the right lesson recording Students do not need to resave files unless they significantly alter the data window settings or make a change to the journal while in the Review Saved Data mode Once in the Review Saved Data mode you may alter the data display window or enter more information into the journal When you make changes to the data window you are only changing how the data appears on the screen you are not altering the data that was originally recorded Saving the changes will never delete any data 89 Review the save options File Edit Display Lessons Hek under the File menu Save Changes e Save Changes SERS tate Print Ctrl F e Save As new name or Printer Setup location Display Preferences Journal Preferences uik Ctrl o Save Changes We recommend this option to ensure that lesson files are properly named and saved Saves
46. oing aerobics even sleeping talking about how the voltage changes over time The body s electrical signals are detected with transducers and electrodes and sent to the MP3X acquisition unit computer via a cable The electrical signals can be very minute with amplitudes sometimes in the microVolt 1 1 000 000 of a volt range so the MP3X amplifies these signals filters out unwanted electrical noise or interfering signals and converts these signals to a set of numbers that the computer can read These numbers are sent to the computer via a cable and the Biopac Student Lab software then plots these numbers as waveforms on the computer monitor 4 Biopac Student Lab Waveform Concepts A basic understanding of what the waveforms on the screen represent will be useful as you complete the lessons Amplitude is determined by the BSL System based on the type of MP input The units are shown in the vertical scale region the unit for this example is Volts Time is the time from the start of the recording which is to say that when the recording begins it does so at what the software considers time 0 The units of time are shown in the horizontal scale region along the bottom of the display the unit for this example is milliseconds 1 1 000 of a second Sampledata Sampledata 3 00000 0 00000 Bog epmgijdure enor 3 00000 100 00 milliseconds k A Units start of recording as Horizontal time Scale
47. ol to select the portion of the wave you are interested in The pop up measurement values will update instantly The pop up measurements always operate on the selected area you have chosen with the I beam tool e For instance if you choose p p you will find the peak to peak value of the wave in the selected area If you choose max you will get the maximum value of the wave in the selected area 4 Pull down the Edit menu and select Journal gt Paste Measurement Alternatively you can use the Ctrl M keystroke command Basic Tutorial 75 Select Channel 1 in the Data Window 76 Set a pop up measurement box for CH 1 mean 77 Set a second pop up measurement box for CH 40 mean 78 Use the I beam tool to select a region from the peak of one R wave to the peak of the next R wave 79 Pull down the Edit menu scroll to Journal and slide right to select Paste Measurement 80 Review the Journal entry Paste Wave Data to Journal 81 Read about the Paste Wave Data function 82 Use the I beam selection tool to select the portion of the wave you are interested in 83 Pull down the Edit menu scroll down to Journal then scroll right to Paste Wave Data 84 85 Review the Journal entry Export Journal Files 29 Select the channel you want to measure by clicking on it with the arrow tool or use the cursor to pick the correct channel number in the boxes just left of each of the pop up measurements
48. om the Display menu The Zoom previous function will only go back one Zoom function You cannot select it 6 times for instance to go back 6 zooms 14 Biopac Student Lab Scale amp Grid Controls Adjust Scales 26 Click anywhere in the Horizontal Scale region to generate the adjustment dialog 2l Review the Scale Range and Grid settings Click anywhere in the Vertical Scale region to generate the adjustment dialog Note that the Vertical Scale is independent for each channel Review the Scale Range and Grid settings If you click anywhere within the Scale region Horizontal or Vertical an adjustment dialog will be generated Any change you make to the Horizontal or Vertical Scale only effects how the display and never alters the saved data file That is to say you will never lose any data when you change these settings The Vertical Scale is independent for each channel so you need to select the appropriate channel prior to clicking on the Vertical Scale ertical Scale LOCKED X Channel Scale Range Upper 20 01 K g Horizontal Scale LOCKED x 3 33 Scale Range Soer Kg All Channels Lower 0 00 seconds All Channels Grid Upper 18 05 Baeke ri O Major Division 5 00 Kardi Grid Baze Point 0 00 Kg Major Division 2 00 seconds div Minor Division OFF Base Point 0 00 seconds Minor Division OFF Precision Precision d
49. omparison so even if you don t fully understand what is happening when you re running the lesson or feel pressured by time as is often the case you should be able to obtain good meaningful data Then you ll be able to analyze and grasp the important concepts later during the Analysis section Normally there are multiple data segments that need to be recorded with different tasks occurring during and or between these segments It is important that you read ahead to the next step in the lesson so it is clear what task s you Il need to perform during each recording segment To begin a Lesson click on the Calibrate button The dynamic calibration procedure will automatically optimize the BSL System for the signal s being recorded in the lesson e With equipment such as an oscilloscope you or your instructor needed to twiddle with the dials and switches e g gain or amplification settings position vertical or horizontal alignment voltage division settings time division settings and sweep speed to make sure a good signal was recorded This entire procedure had to be manually repeated for each new subject The Biopac Student Lab makes the required adjustments for you during the automatic calibration procedure If you did not plug in the hardware as directed you will be prompted to correct it before continuing Biopac Student Lab Error Electrode assembhy SS2L not detected at CH 3 Ignore A dia
50. ons Help Save Changes Save S Print Ctrl F x Printer Setup Display Preferences T abs 1 00 inch Change Font Journal Preferences Measurements Paste Options uit Ctrl g I Include measurement name I Include measurement units i Include channel numbers Put each measurement on a separate line Wave Data Paste Options W Include time values Cancel You can control formatting for text measurements and wave data Click on the Change Font button to set the text font style and size Select these options so that when you paste measurements you can easily identify them Note When you plan to export the measurements to a spreadsheet program such as Excel it is best not to select all of the Measurements Paste Options or the Wave Data Paste Option as these will affect the formatting 28 Time and Date Stamps 71 Position the cursor at the end of the journal entries and click on the clock icon to activate the time stamp Review the result 72 Click on the calendar icon to activate the date stamp Review the result Text entry 73 Place the cursor at the point you wish to begin typing and enter text using the standard keyboard functions Paste Measurement s to Journal 74 Read about the Paste Measurement function Biopac Student Lab The Journal has stamps for the time and date which can be useful when creating reports The icons are on the left edge of the Journal toolbar
51. ren2 Once you enter your name and choose OK the Biopac Student Lab software creates a folder inside the Data Files folder that is inside the Biopac Student Lab folder on your computer or in an alternate location if your instructor modified setup This is where all your data will be stored If you choose the same file name for other lessons they will also be stored in this folder with the appropriate lesson number extension If you try to use the same file name an eleventh time the program will insist that you choose a different name amp folder with this name already exists you must use a unigue name The files inside your folder can be moved copied or duplicated just like any other file If you wish you can copy them to a floppy disk as a backup or to be viewed later Check with your instructor or lab assistant for more information on how to do this When you run a lesson the first step is a prompt for you to enter your name The Biopac Student Lab software creates a folder with the exact name you enter and places it in the Data Files folder of the Biopac Student Lab Program folder When you press the Done button in the lesson to end recording the BSL program automatically saves your waveform data file to the Data Files folder with a file name based on the user name or I D given at the start of each lesson The software will save the data file with the name you entered plus an extension that identifies
52. rosoft Corporation This document was created with Microsoft Word for Windows Adobe Photoshop Corel Draw 7 0 Mainstay Capture and JASC Inc JasCapture
53. t 65 Click on the bar separating the Journal window from the Data window and drag up or down to resize the Journal Format Journal Entries 66 Pull down the File menu scroll down to Journal Preferences 67 Review the options that can be set to change the way measurements are pasted into the Journal 68 Click in the box next to each measurement paste option box so that all are selected 69 Click in the Include time values box in the Wave Data Paste Options section Click OK to accept the option changes 70 The Review Saved Data mode incorporates a Journal feature so you can type notes or copy measurements from previously saved data You can also copy data directly to the Journal The Journal needs to be the active window for its options to come up Bag Slimdenl Lah Sanpa ar LF alg x Disks Oe ela sie Erf nan 700 eT En an le De Lisan 2 Electraetdgragtn EMG U File name Samnpdefata Thursday May 15 2000 Ob0a47 PH Eist procedure Stream 1 Sorremanlt rt nid Chore es in inns gf 5 Hij uihil isdn Cec Bett is obtineti 114701 FM Tuesday Ju 01 2004 Mares Sunray Anp ad Markers Marker Ir daar Segment 1 Eveni Markers Timaisat 5 Label oto Forearm 1 increasing clanch force Timeiter j Label Clarsh 1 lomch 2 P larch 3 Clanch 4 Marker Index Event 1 Evan 7 Bi EI Ewert 4 Ewen d gnd Meat OB RESP ase no grdna nA File Edit Display Less
54. t All of the options relating to printing the data files apply to the waveforms as they are displayed in the data window If you ve zoomed changed the scale or hidden a channel only the portion of data displayed in the data window will be printed This is actually very useful because oftentimes you may only want to display a portion of the data When you choose File gt Print you will be prompted to choose which items to print Choose which items to print x Journal omen The following Print dialog is just an example Your actual Print dialog will depend on the printer and Operating System you are using The dialog should include Print Options that allow you to control how much data is printed on each page e Depending on your OS you may need to access the Print Options via a button in the original Print dialog Refer to the Users Manual for your computer and or printer for more detail Printer System Printer PRINTDOMAMSalesl J Cancel Print Optians Print E plots per page Setup Fit to E pages i Print Guality soo dpi Copies 1 Print ta File Collate Copies P 32 Print Options e Automatic Adjustments Print Journal yor a 94 Print the entire data file Click anywhere in the Data Window to make it the active window Choose Display gt Autoscale Horizontal Choose Display gt Autoscale Waveforms Choose File gt Print gt Print Graph Set
55. text may overlap or be hidden If this is not acceptable then you ll need to expand the time scale so that the markers have enough room to print This option generates a standard Print dialog to print the Journal text Basic Tutorial 33 Quit BSL During the recording mode the application close icon in the upper right corner of the display window is blocked so you can t inadvertently quit the application when you simply meant to close the data window To quit the application you need to choose Quit from the File menu File Edit Display Lessons Helg Save Changes Save s Print Ctrl P Printer Setup Display Preferences Journal Preferences uit krl4 0 If Quit is blocked click on the STOP button and wait for the recording to end then try Quit again When you try to quit the software after altering the data file and or journal file in any way the following message will be generated Biopac Student Lab x The SampleData LOZ graph has changed Do vou want to save the changes po l cma 34 Biopac Student Lab Running a Lesson To run a BSL Lesson you must have an MP3X data acquisition unit connected If you installed the BSL software with the Hardware option and have an MP3X unit connected you can follow along on your computer otherwise just read this section so you ll know what to expect in the lab The primary objective of the Recording section is to assist you in obtaining good data
56. u The Operand pull down menu includes Addition Subtraction Multiplication Division Exponential The Constant entry box is activated when you select Source K constant and it allows you to define the constant value to be used in the calculation Biopac Student Lab easurement Tool Definition To add units to the calculation result select the Units entry box and define the unit s abbreviation Click OK to see the calculation result in the calculation measurement box E correlate Correlate provides the Pearson product moment correlation coefficient r over the selected area and reflects the extent of a linear relationship between two data sets x values of horizontal axis and f x values of a curve vertical axis You can use Correlate to determine whether two ranges of data move together Association Correlation Large values with large values Positive correlation Small values with large values Negative correlation Unrelated Correlation near zero delta The A delta amplitude measurement computes the difference in amplitude between the last point and the first point of the selected area It is particularly useful for taking ECG measurements because the baseline does not have to be at zero to obtain accurate quick measurements delta S The AS delta samples measurement is the difference in sample points between the end and beginning of the selected area delta T The AT delta time m
57. u will notice that whenever the cursor is over data it is displayed as an hiel la When you have a flashing line you have one point of data selected If the line is not flashing it means that you moved the cursor while the mouse button was pressed and you actually selected more than one point of data If this occurred simply click on another portion of data When you are finished taking measurements and wish to deactivate a point click on the selection tool icon Basic Tutorial 17 Selecting an area several points amp Biopac Student Lab SampleData L02 Me ES File Edit Display Lessons Overlap 5 plit 35 Click on the I Beam ICOn 978417 Ky pp 2 48267 mw 0 24490 mv 1 F 36 Move the cursor over a point on on the data Forearm 1 Increasing clench force 4 of 37 Hold the let mouse button down and drag the mouse to the right 38 Release the mouse button e An area should be highlighted seconds When the mouse button is released an area should be highlighted darkened on the screen as shown above This is very similar to how you select words in a word processing program 39 Click the mouse on another When you are finished taking measurements and wish to deactivate a point of data and then click on selected area click the mouse on another portion of data to select just one the selection tool icon to point flashing line appears and then click on the selection tool icon deacti
58. vate the point 40 Set a region for CH 1 Force seas and delta 41 Click on the I beam Click on the I beam icon to activate the I beam cursor icon E Biopac Student Lab Sample Data L02 Ioj x 42 In the Force channel use Fie Edit Display Lessons the I beam to select an area Overlap Split from the peak of one clench 1 C deta 569001 kg SC C none to the peak of the next 4 clench eats Force 43 Review the result a gt e This example shows an increase of 5 89 Kg Your result will vary If the correct region is not established by the I Beam cursor for the measurement type the result will be meaningless Results will update automatically when you change the channel selection or the selected area 44 You can use the Data Data Window Copy Measurement Window options in the Journal bk Copy Wave Data Display menu to copy Copy Graph measurements to another program Biopac Student Lab Copy Measurement Use to copy the measurement values from the data window to another program such as a Word document or email for your Lab Report delta 1 0 01392 Kg P P 3 2 48267 mV Mean 40 0 15282 mV Value 1 0 06469 Kg deltaT 40 4 19600 sec Copy Wave Data Use when you want to copy waveform data as a set of numbers The data copied will include all wave data within the area selected by the I beam cursor for all channels whether displayed or hidden sec Force
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