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June2009

 

Installation Error Messages

Why do I receive error message 1305 when installing BioGraph Infiniti Software?

You receive this error message when there is a configuration problem with your CD-ROM drive or a problem with the CD-ROM media itself.

Resolution: To test your CD-ROM drive configuration, reduce the drive caching for your CD-ROM drive. For additional information about how to reduce CD-ROM drive caching and about how to test the CD-ROM media for quality, click the article numbers below to view the articles in the Microsoft Knowledge Base:

141368 Poor Performance from CD-ROM-Based Program

158904 CD-ROM Benchmark Program May Not Disable Read Ahead or Caching

321641 How to Troubleshoot Issues with Reading CD, CD-R, CD-RW, and DVD Discs

218617 How to Troubleshoot CD-ROM or DVD-ROM Read Issues

When installing BioGraph Infiniti, why do I receive this error? “Error 1311: Unable to read source file…"

This error indicates that the installer is unable to access the necessary files from the CD-ROM drive, or that the "Restrict CD-ROM access to locally logged-on user only" local security policy in Windows is set (See ERROR: 1335).

Why do I receive Error 1335: "The cabinet file Data.cab required for this install is corrupt" when installing BioGraph Infiniti software?

Dirt or smudges on the BioGraph Infiniti or Suites CD-ROM, or dirt and dust in the CD-ROM drive itself often cause this error.

To resolve this error, make sure that both the BioGraph Infiniti or Suites' CD ROM and your computer's CD-ROM drive have been cleaned, or perform a hard disk installation.

To clean a CD-ROM:

  1. Hold the CD-ROM with the shiny side up. Check the CD-ROM for visible dirt and scratches by tilting it slightly to reflect nearby light.
  2. If dirt is detected, use a soft, lint-free cloth and wipe the CD-ROM from the center in a straight line to the edge.
  3. For CD-ROMs that have excessive debris on them, consider using a gentle stream of warm water in combination with the soft cloth.
  4. Note: For scratched CD-ROMs, contact your place of purchase or Thought Technology Ltd. for a replacement disk.

Dirt and dust often accumulate in the CD-ROM drive. To loosen this dirt, blow carefully into the drive. Canned air, available at most computer supply stores, can also be used for this purpose. If you are unable to manually clean the CD-ROM drive, consider buying a retail product designed to clean the drive.

If you do not feel comfortable performing the procedures mentioned above, contact a computer hardware specialist.

To perform a hard disk installation of BioGraph Infiniti or any of its Suites, use a flat folder and follow the steps below:

  1. Close all applications that are running, and then restart your computer.
  2. Save a copy of the "disk" folder that is on the BioGraph Infiniti or BioGraph Infiniti Suites CD-ROM to your computer's hard disk:.
    • Right-click the Microsoft® Windows® Start button, and then choose Explore.
    • Create a new folder at the root of your hard disk, and then name it "Flatfile" (for example, C:\Flatfile). (For detailed steps, please refer to Windows Help).
  3. In the same window, browse to the drive that contains the BioGraph Infiniti or Suites CD-ROM, and then copy the entire contents of the "disk" folder on the BioGraph Infiniti or Suites CD-ROM into the C:\Flatfile folder:
    • Click the CD-ROM icon (or DVD-ROM icon), and then browse to the "disk" folder and open it.
    • From the Edit menu, choose Select All, and then choose Copy.
    • Locate the Flatfile folder you just created, select it, and then choose Paste from the Edit menu to copy all the files from the BioGraph Infiniti or BioGraph Infiniti Suites CD-ROM.

Note: If any errors occur during the above step 3, there may be a problem with the BioGraph Infiniti or Suites CD-ROM, the CD-ROM drive, or your hard disk. If possible, try to install BioGraph Infiniti or Suites on another computer to determine whether the problem is with the CD-ROM or the original computer. (If the installation fails on another computer, see the Note above about obtaining a replacement disk).

Restart your computer, and then install BioGraph Infiniti or Suites by double-clicking the setup.exe file in the C:\Flatfile folder located on your hard disk.

Why do I receive Error 1607: Unable to Install InstallShield Scripting Run Time?

When running an installation created with an InstallShield product, the following error occurs at the beginning of the installation: Error - 1607: Unable to Install InstallShield Scripting Runtime.

More Information

Why do I receive Error 1709? No valid source could be found for product [1]. Where "1" is the name of the program attempting to install/repair.

If you installed your software from CD, you will need to provide the CD in order for the action to complete.

If you installed your software from a network drive letter, make sure the drive is mapped again. To locate the area the software is attempting to look. Check the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall.

In here you will see several subkeys with long hexadecimal strings for names. These represent various Windows Installer applications installed on your system. Use the "find" feature or look in each until you find the one with a "DisplayName" value that matches that of your software (denoted in the error message as the number two). There are several values that control how the repair or removal of the software should be performed. Look for the "InstallSource" value- this is the location being checked for the applications installation files.

This error is normally seen after an application is already installed. When you run the program using the shortcut created by the installation, Windows Installer first checks to ensure all the files deemed important to the program are present and available. If one of these files is missing, or even corrupt, Windows Installer will attempt to go to the installation source (by default this is where it was initially installed from) and restore the files with fresh coppies.

Some common causes:

  • a file has been deleted - another program was installed that removed or replaced a file needed by the application - another program was uninstalled and removed files needed by your application.
  • security limitations that do not allow the system to see that a required file is present. Look to your logs for more detail on just what file has been deemed unavailable:
    1. Check the Application Log in Event Viewer (eventvwr.exe).
    2. See our tip on turning on Windows Installer logging here. Once logging is enabled, attempt to launch the program again and look in your %TEMP% folder for the installer log file. You will see the path and filename for the problem file here (search for "ERROR").

Communication Error Messages

Why do I receive this error message after updating BioGraph Infinti software? "A file of an older Version was detected please close all Infiniti applications and run this option: Start, All Programs, Thought Technology, 'Full Upgrade BioGraph Infiniti Files' ."

During the updating process it is possible that some of the BioGraph Infiniti system files were not overwritten. Usually running the batch process 'Full Upgrade BioGraph Infiniti flies' should have resolved older files issues. However, if the batch process did not solve the problem the BioGraph Infinti update must be uninstalled and then reinstalled.

Why do I receive this error message: "The communication protocol type does not match with the channel set in encoder(s). Change the DIP switch positions and turn all encoders OFF/ON?"

On the Infiniti encoders, the DIP switches are located on the underside of the encoder, just to the left of the belt clip, for the ProComp2 encoder they located in the battery compartment.

There are four switches that can be flipped up and down to a 1 or a 0 (zero) position (ON/OFF for ProComp2) with the aid of a paper clip or small pointed object.

We recommend using the tip of a paper clip to change the position of a switch. Avoid using pens or pencils as ink and lead dust can damage the switches.

Also, be sure to always turn the encoder off before making changes to the switch settings.

To set a switch, push it down. On the following graphics, the side that is flipped up is shown in white; the side that is pushed down is in black. The illustration shows a switch set to the 0 position:

Why do I receive this error message after upgrading BioGraph Infiniti software? "Too few parameters, Expected 1".

The Software upgrade has added new features, and the already installed screens, scripts and channel sets are missing some paratemers.

To fix this go to the Start Button,

  • Click Programs,
  • Click Thought Technology,
  • Click Infiniti,
  • Click Upgrade Biograph Infiniti Files.

Compact Flash

What is the use of the Compact Flash?

The compact flash (CF) is used as an alternative storage medium for data being recorded by the encoder. The CF card is a small square approximately the size of a box of matches and is inserted into the rear surface of the encoder with its label facing up.

The encoder is delivered with a protective insert in the compact flash slot. To remove it, push the button next to the slot once to eject the button, then push again to remove the card, pushing the button back in. The CF card can then be inserted; you will notice that the CF card can only be inserted one way into the encoder to protect from incorrect insertion. When inserted properly it will be flush with the encoder's rear.

Follow the procedure above to remove this card when no longer required, and re-insert the protective insert. CF cards require a CF card reader to transfer data to the PC.

Do I need any special make of Compact Flash card or Card Reader?

Compact Flash cards and Card Readers can be purchased from most computer stores.

Note: Users should follow the appropriate procedures used for disconnecting peripheral devices when unplugging the Compact Card from its PC reader.

Does the Compact Flash card need special formatting?

Before its first use in the encoder, a CF card requires PC formatting using the file manager.

With the CF card inserted into the reader connected to the PC, from Windows® open the file manager and identify the Removable Drive.

  • Right Click the removable drive and select Format.
  • Select Format Type Full, if using Windows® XP select file system FAT, NOT FAT32,
  • and select Start.

When the formatting is completed use the single master file build function provided by the Infiniti Software to finish the process.

Select Compact Flash Option, Rebuild Compact Flash, Create (full rebuild).

Note: Formatting CF Card with File Systems other than FAT will render it inoperable.

How long can I record on a Compact Flash Card?

The duration for which you can record on a compact flash depends on the sample rate and the amount of channel been recorded.

ProComp Infiniti has 2 fast channels and 6 slower channels:

  • A and B channel are 2048 samples/second (s/s),
  • and C to H channels are 256 s/s.

Below is the calculation of the amount of space used over a given time.

  • For 2 fast channels: 2048 s/s x 2 bytes x 2 channels = 8192 bytes/second, this is equal to 480 K bytes per minute, and 28.1M bytes per hour.
  • For slow channels: 256 s/s x 2 bytes x 6 channels = 3072 bytes/second, this is equal to 180 K bytes per minute, and 10.5M bytes per hour.
  • Therefore, a 256M compact flash can record 9.1 hours of data from 2 fast channels, 24.4 hours of data from 6 slow channels.
  • If all 8 eight channels are used, a 256M compact flash can record 6.3 hours of data. Worst-case scenario, with all sensors connected, would be 40MB/Hour.
  • Sample Rate 32 s/s for 1 minute = 7.5 KB
  • Sample Rate 256 s/s for 1 minute = 60 KB
  • Sample Rate 2048 s/s for 1 minute = 480 KB

Main Application, Screen and Channels

You have just installed or upgraded your BioGraph Infiniti Software and TT-USB driver to version 4.x and now your computer freezes while trying to run BioGraph Infiniti. Why?

You may have another Serial USB Converter installed on your system that uses a similar driver.

In the past, the manufacture of the TT-USB chip has provided two types of driver for Windows: a D2XX direct driver and a virtual COM port (VCP) driver. Previously, these drivers were mutually exclusive and could not be installed at the same time. The new Windows combined driver model (CDM) allows applications to access the chip manufacturer’s devices through either the D2XX DLL or a COM port without having to change driver type. However, the application can only communicate through one of these interfaces at a time. This means it cannot send commands to the D2XX DLL and the associated COM port at the same time.

To resolve the above issue:

  1. While using the BioGraph Infiniti Software, disconnect other USB devices that use similar drivers.
  2. If you have upgraded from a previous version of BioGraph Infiniti and the TT-USB Driver was backed up, you can roll back the driver to the previously installed driver.
  3. To roll back the TT-USB Driver go to “Control Panel > System > Hardware > Device Manager > Universal Serial Converter, right click on Though Technology TT-USB device or TT-USB device, and then select Properties, Driver and Roll Back Driver.

  4. Uninstall the new driver and reinstall the old driver.

Always uninstall devices from Windows XP through the Add/Remove Programs utility as this uses the driver uninstaller program to remove files and registry entries, leaving a clean system. Other methods may leave fragments of the driver that could interfere with future installations.

The driver for version 3.x of the TT-USB can be downloaded from http://www.thoughttechnology.com/update01.htm or on the BioGraph Infiniti Main application CD for version 3.1.6.

When you try to replace the newer driver with the previous or older driver the message below will appear. Press Yes to overwrite the file.

In Windows Vista click Install this driver software anyway when the message below appears.

What happened to the Screen Editor Lite?

The Screen Editor Lite's functions were replaced by the right-click function.

When a screen is loaded in BioGraph Infiniti you now have the option to do editing from the Main Application.

Before you start recording a session you can right-click with your mouse to highlight the Instrument, a Menu box will appear for you to select the associating item that you can edit.

Screen instruments are audio-visual, graphical, numerical, and logical tools included in display screens. The main purpose of screen instruments is to provide information about outputs from the channel set; these may be raw signals from physical channels or products of calculations in virtual channels. Logical instruments can be used in combination with these outputs to create inputs to other instruments. Graphical instruments display the information as graphs while numerical instruments display it as numbers. Audio-visual instruments are useful in visualization and control of feedback events during recording. Graphical and numerical instruments tend to be used in analysis and research while reviewing session data.

While you are recording, replaying, or reviewing sessions within BioGraph Infiniti, most screen instruments allow you to see what channels they are connected to. In addition, most instruments also permit you to modify some of their settings.

These functions can be accessed by placing your cursor over the instrument and clicking the right mouse button. This opens a menu that displays the options available for the selected instrument. The settings you can modify from within BioGraph Infiniti are determined by:

  1. The type of instrument.
  2. The instrument's threshold settings.
  3. The type of channel(s) connected to the instrument.

The mode that is currently active (Recording, Replaying, Reviewing). To modify settings that aren't accessible from the right-click menu, you need to edit the screen with Screen Editor.

What is the file naming convention in BioGraph Infiniti?

You can name files using just about any of the available characters, including spaces. However, there are some characters you can't use. They include ? * / \ : " < > | Also because windows usually looks for an opening and closing quotes naming a file Dona's or John's could cause problems. It is good practise not allowing blank spaces at the end of file names i.e., Joan .prt. Also, naming a screen "Alpha theta. For relaxation" will be saved as "Alpha theta.scr".

Why do I receive this error message: "The Main Screen has not been loaded"?

This message appears because a change was made in the channel set, the screen or the script. In the BioGraph Infiniti Software channels are associated with screens and scripts. If a change was made to the channel, the screen or the script, the link could be severed.

Note: If you need to modify a channel set, screen, or script, copy and rename before you make changes. You should always keep a backup of the old channel set. If you use Save As, you can create a new channel set with different computations AND THEN, review replay or export data using a different channel set from the original.

Is there a way for users to create their own screens for BioGraph Infiniti?

To create screens in BioGraph Infiniti you will need to have the Developer Tools, which consist of the Channel Editor, the Screen Editor, and the Script Editor.

The Infiniti software's Screen Editor Program enables you to build new display screens for use with the BioGraph Infiniti Multimedia biofeedback software. Display screens define how the data that is acquired through the Channel Set is shown to the clinician and to the client. When building a display screen, you have to define its size, position and color. You have to place various graphic instruments on the blank screen area. If it is a feedback screen, you have to define thresholds and link instruments together to create the feedback logic.

Finally, you have to select media files (animation and sound) and configure feedback options.

Can I use an EEG Flex/Pro Sensor in a channel set configured for an EEG-Z Sensor?

Yes, choose Start Open Display, choose the Client, choose Define New Session, select the Channel Set, then select Channel set Configuration, highlight the sensor, and click on "Toggle", when the appropriate sensor appears click on Close.

Toggle: Allows you to toggle sensor options for the MyoScan-Pro and EEG sensors. MyoScan-Pro sensors have two sensitivity ranges: 0 to 400 or 0 to 1600 micro-Volts.

  • The 400 range is good for small muscle groups,
  • while the 1600 scale is better for larger muscle groups.
  • The EEG sensor toggle allows you to switch between the EEG-Z, EEG-Z3 or the older EEG sensor type. Most channel sets will be defined with EEG-Z sensors.

If you want to use an older EEG sensor on the selected input, simply toggle the sensor type. If, instead of toggling the MyoScan-Pro sensor type in the channel set, you decide to change the DIP switch setting on the sensor, note that you have to unplug and re-plug the sensor from its encoder input for the change to be registered by the system.

How does one create new virtual channels?

Virtual Channels are created using the Channel Editor.

The Infiniti Software's Channel Editor enables you to build new channel sets for use with the BioGraph Infiniti Multimedia Biofeedback software. Channel sets define the encoder and sensor types as well as the various real-time computations and post-session statistical calculations that are performed on the recorded data. Within a channel set, you must decide the following elements:

  • The type and number of encoders:

The Channel Editor can build channel sets for 1 to 4 ProComp+, ProComp 2, ProComp Infiniti, FlexComp Infiniti, MyoTrac Infiniti, MyoTrac3 or U-Control Infiniti encoder devices. If multiple encoders are to be used, they must be of the same type.

  • The number of enabled encoder inputs:

A channel set can be defined to use all, or only some, of the sensor inputs present on the selected encoder(s). The ProComp+ and ProComp Infiniti devices have 8 inputs each, while the FlexComp Infiniti has 10. The other devices have 2. When enabling or disabling encoder inputs, keep in mind that the ProComp type encoders have different sampling rates on some of their inputs. The sampling rate governs which type of sensor can be connected to a given input.

  • The sensor types:

Different physiological processes may require different signal processing methods to ensure optimal recording conditions. Thought Technology offers sensor types to record seven physiological signals:

  • Electroencephalography (EEG),
  • surface-electromyography (SEMG),
  • electrocardiography (EKG),
  • skin conductance (SC),
  • respiration (Resp),
  • temperature (Temp),
  • and blood volume pulse (BVP).

In addition, adapters for third-party force sensors and goniometers are also available. The sensor type determines what kind of physiological signals will be recordable by a given channel set. You can also record data from a third-party device through the Voltage Isolator.

  • The signal processing methods:

All sensor types generate what's called a "raw" signal or "waveform". From each raw signal type, it is generally possible to derive a number of related measures. For example, from an EKG signal, one can compute heart rate and inter-beat interval. The Channel Editor includes a library of computational algorithms for a number of such derived calculations, as well as for many other operations, that can be used to generate up to 255 virtual channels.

If one or more sensors are missing, but I still want to go ahead and record the session, what should I do? Do I need to edit the screen, channel sets etc.?

A message box will pop up, asking you if you want to continue recording the session without those sensors. Just click OK and you can start recording.

Can you analyze heart rate variability and respiration, measure the degree of alignment of them, and get the amount of shift required to best align the two variables?

Yes, you can display heart rate variability and respiration on a multi-line graph giving you the ability to analyze them.

On analysis of (say) heart rate change, can you place a cursor or mouse on a point on the trace and get a read-out of the instantaneous value of the parameter measured at that selected time?

Yes, in review screens you can use a Time Mark, which is a vertical red line that usually sits at the extreme left of line graphs. You set the Time Mark to the tip of the mouse pointer.

Note: You will also need a screen with a numeric instrument...

Can you display all the recorded data on one screen and then zoom in to display a page of data (maybe 1 minute) and select as appropriate?

Yes, the Time Frame Settings drop-down list includes a "size to session" option that shows the entire session. You also have options for other time periods including 1 minute.

The heart rate variability system displays a running Fourier analysis graph. Is it possible to do that with any parameter measured, and if so, can the display parameters be varied e.g. the scales of the graph?

A running Fourier analysis graph can be used to display EMG, EEG or IBI (inter beat interval). These are the only signals for which this can be done. Scale settings are adjustable.

What data format does the BioGraph Infiniti export and is the export sample rate adjustable?

BioGraph Infiniti exports data in CSV (text) format it is the only available format for the exporting of data. It was chosen as the lowest common denominator to ensure that users could import the data into their choice of software.

The export sample rate can be selected at 4 different re-sampling rates: 2048 Hz, 256 Hz, 32 Hz or 8Hz. The start time and end time of the data to be exported can also be selected.

Does BioGraph Infiniti measure coherence?

Yes. BioGraph Infiniti offers two virtual channel computations to estimate the coherence between two input sources.

  • The first, called Full Spectrum Coherence, displays the coherence as a function of frequency on a spectral plot.
  • The other, called Total Band Coherence, computes the total coherence within each of four user-defined bands.

The algorithm actually calculates the total band coherence for the four bands simultaneously, the results of which can be displayed independently on four numeric screen instruments.

Coherence is computed within a particular observation period, referred to in the user settings as the time period. This time period can be chosen to favour accuracy, for use in pre- and post-treatment analysis for example, or quickness, for use in neurofeedback applications.

Please refer to the user manual for more guidelines on how to tailor the coherence settings to suit your application.

How can I get optimum results when measuring coherence?

To obtain optimum results when measuring coherence, 2 EEG sensors must be plugged into adjacent physical channels with the same sampling rate (at least 256 s/s).

When viewing tables in the BioGraph Infiniti software the grid lines are squashed together, Why?

Microsoft has confirmed that this is a bug in the List view control. Click link for Workaround

Video

Can you synchronize a video camera with a psycho-physiological recording session?

You can use up to two web cameras, and the synchronization is built into the BioGraph Infiniti software. When you click “start recording”, the data and video will be recorded in a synchronized way. Refer to known issues.

When reviewing the data, the video frame that is shown on the screen always corresponds to the Time Marker position on the time line. You can drag the time marker back and forth along the physiological data and the corresponding video frame will automatically be shown.

When the system is recording live, is there any means of annotating the recording to mark events such as change in posture? In other words, can you put a marker while you are recording data?

Yes, you can simply tap the space bar to place a marker. You can do this while recording data, if an event occurs that you would like to mark. A marker, shown as a vertical dotted line, will be placed at that moment in the session data. When reviewing the session, you can find the marker at or near that moment and easily type in a label to describe the event that you wanted to mark.

New with version 3.0, you can pre-label a number of markers (a-z & 1-0) and place the pre-labelled markers on the data, while recording, by pressing the corresponding [Control]-Key combination.

Do AVIs created using the cinepac codec work with BioGraph Infiniti?

Windows is distributed with a number of audio/video codecs. MS has a couple of them, MS RLE and MS Video, but they are older technology and not too good.

For the longest time, Windows was also packed with Indeo (by Intel) and Cinepac (a MAC codec). In the summer of 2003, MS had a fight with Intel and decided to remove the Indeo Codec from its distribution files (this was done when a Service Pack was installed).

Of course, this removal had a lot of consequences with other people's multi-media packages: Many Web Cams, video games and 3D graphic programs stopped working. People complained and MS had to re-release the codec through a special update package that can be downloaded from their Tech Support site and which TTL is now distributing on the Setup CD for BioGraph Infiniti.

Cinepac is the one that TTL settled on because it allows some non-standard sizes (ex. 120 X 600 pixels). Most other codecs tend to work only with standard sizes and proportions (ex. 640 X 480). So, in short, for BioGraph Infiniti animations, TTL is using Cinepac (see How to edit AVI movies).

What type of files does BioGraph Infiniti use for recording and playing back video?

For video recording and playback, TTL is still using Indeo. The new tendencies for video are leaning towards using MPEG compressions. MPEG, or MPG, is what's used for commercial video productions (VCDs and DVDs). There are many of these MPEG formats around, MPEG I, MPEG II, etc. They produce the best quality/compression ratios.

TTL experimented with MPG files, but had quite a bit of difficulty trying to manipulate the playback direction (i.e. play backwards and play frame by frame). If you want to produce AVIs for BioGraph Infiniti it is important to note that the software totally ignores the sound track, if there is any, because it could cause conflicts with the software's audio feedback functions. Also, it is best to produce short clips, because long ones take up a lot of memory.

Is it possible to use the fractal program G-force with the Procomp Infiniti as a visual feedback device ? If so how can it be applied?

G-Force is a music visualizer that can be used to visualize audio from just about any source. (The Platinum version is, in any case.) All you need to do is use a display screen that produces proportional or inverse proportional MIDI tones for each bit of information you want to feed back on and run G-Force in parallel.

How do I add a second Monitor to my computer system?

A second Monitor can be added to your computer system if your video card has a second head or if you have more than one video cards.

Dual Display Options

When two monitors are attached to a system, you have essentially three options:

Clone mode

The desktop is replicated twice, once on each monitor. Every action you perform on one monitor is duplicated on the other. This is useful if you're demonstrating something to another user. You can turn the second display to face them so they can watch what you're doing. This is the default when you first attach a second monitor to a Windows system.

Stretched or virtual monitor mode

The desktop is "stretched" over the entire surface of the two monitors, as if they are one big screen. The task bar also stretches across both screens. When you change the resolution, you only change it once, and the horizontal resolution is essentially the sum of the two individual horizontal displays.

The single, large display really does behave like a single display.

Having a single, large desktop can be very handy. But the limitation inherent in this is that both displays will be configured to run at identical resolutions. For example, if you want a resolution of 2048 horizontal pixels by 768 vertical pixels, both displays will be set to 1024 x 768.

Dual View

Another option is dual view, which is particularly useful if you have two monitors with different specs. Dual view allows you to independently set resolutions and refresh rates for the two displays. One display is considered the primary one. You can independently turn off extended monitor support for the display of your choice.

The desktop still works as if it were one large desktop, with a couple of key differences:

  • The task bar only stretches across the primary display.
  • Since the monitors may be set to different resolutions, dragging a window from one to the next may be a bit disconcerting. Since the pixel count of the individual window remains the same, the percentage of screen real estate taken up by an individual window shifts from one to the next.
  • Some applications that use the video overlay may always force to the primary window.

Software Setup

Both Nvidia and ATI offer similar dual display capabilities, but implement setup and management differently.

When you first start up with a second monitor attached, Windows will detect it and run the new device wizard. Assuming your monitor isn't really old, then you'll just select the plug-and-play monitor. The graphics driver itself may also detect the presence of the second display. At this point, a wizard may pop up to guide you through the setup process. We say "may" because it doesn't happen in every case. Similarly, if you're installing a brand new driver in a new system equipped with two displays, the multimon wizard for the driver in question will run. You can also manually launch the wizard.

On the other hand, you can also simply get up and running quite easily by simply using the main display control panel. You get to this by either running the display control panel applet or by right clicking on an empty desktop spot and selecting the "Properties" option, then clicking on the "Settings" tab. The control panel depicts the two displays in a diagram. The new one will be shown as off and at a very low resolution. Click directly on the number of the new monitor. Note that it may not be the monitor labeled "2." The monitor number depends on which connector on the graphics card it is attached to.

The new monitor will have the box "Extend my Windows desktop onto this monitor" unchecked. Check this box. Both displays will flash and you'll now likely be in dual view mode. If Windows believes that both displays are identical, you may wind up in stretched mode.

At this point, your mouse cursor may behave oddly. For example, the cursor may move off the left display to the right display only by moving the cursor off the left side of the left display. It will bump into an invisible barrier on the right. This is easy to fix. Click on one monitor icon in the Settings panel and drag it to the other side of the other monitor icon. You can also choose which display is the primary display. In dual view mode, this will be the display that shows the Windows task bar.

Note that you can stack the monitor icons on top of one another. This means your mouse cursor scrolls from one display to the next by moving up or down, rather than sideways. This might be useful if you need to physically stack the monitors vertically for some reason.

DVD

How do I play DVDs in BioGraph Infiniti?

Before you can play DVD in the BioGraph Infiniti Application you must have a DVD-ROM drive, a computer running the Microsoft Windows XP or later operating system, and either a software or hardware DVD decoder installed on your computer. (By default, Windows XP, Windows Vista Home Basic and Windows Vista Business does not include a DVD decoder).

For more information about DVD decoders, see the Supported software MPEG-2 DVD decoders in Windows Media Player for Windows XP and Windows Vista.

If these conditions are met, you can play DVDs by using Windows Media Player for Windows XP or Windows Vista.

DVD support in Windows Media Player for Windows XP has always relied on a third party's DVD decoder to decode the MPEG-2 video that is on every DVD. If you are having problems playing DVDs the first thing you should try is to reinstall your DVD decoder on top of itself.

If you are not sure whose decoder you are using go to Start | Run | Type DVDUPGRD /Detect. This should list the DVD decoder installed. You will want to reinstall the decoder from your original media or download a copy from the manufacturer of the decoder. In addition, the Windows XP Video Decoder Checkup Utility can be used to see if you currently have an MPEG-2/DVD decoder installed if you are running Windows XP. From within the program you can then set it as the default MPEG decoder.

If you see nothing listed, you would want to reinstall that application in order to reinstall the decoder. WinDVD and PowerDVD are two examples of software that would install MPEG-2 decoders that Windows Media Player can use.

If you don't have a DVD decoder installed you must obtain one before you can playback DVD Video on your PC.

There are different ways of doing so, you can buy and download a DVD Decoder pack, purchase a separate DVD playing application such as PowerDVD or WinDVD, or you can fine a free codec pack on the internet such as Download K-Lite Codec Pack or Vista Codec Package.

If you buy a decoder pack you do not get a separate player application as you would with PowerDVD, you use Windows Media Player for movie playback.

Please see DVD and MPEG-2 Support and Windows XP Video Decoder Checkup Utility for more information about MPEG-2 and DVD Playback in Windows Media Player.

If reinstalling the decoder doesn’t help then the next step is to reinstall your video card drivers. Get the latest drivers from the manufacturer of your video card and reinstall them.

If you have more than one DVD decoder (also called an MPEG-2 decoder) installed on your computer, you may experience problems when playing DVDs. To resolve the problem, you can remove the decoder that you do not use by using Add or Remove Programs in Control Panel and removing the associated program.

Why can't I see the video when playing DVDs?

If you can hear the audio, but can't see the video in Windows Media Player, first make sure that your computer meets the hardware and software requirements for DVD playback.

If video disappears or becomes discolored (for example, it turns purple or green), turn off video overlays by doing the following:

  1. In Windows Media Player, on the Tools menu, click Options, and then click the Performance tab.
  2. Click the Advanced button.
  3. In the Video Acceleration area, clear the Use overlays check box.

If the problem continues, try turning off the video mixing renderer (VMR) by clearing the Use video mixing renderer check box, located just above the Use overlays check box.

"I am able to see video onthe DVD instrument I BioGraph infiniti, but I can't hear any sound. Is the file corrupted or am I doing something wrong? Other Video movies play just fine outside of BioGraph."

Getting video and no sound or sound and no video is more common than you might realize. This problem is almost always caused by one of two problems.

  1. Either you do not have the required CODEC installed on your system to decode the audio portion of the file. Or DVD instrument is not properly associating the correct codec on your system in a way that makes playback possible ‘CODEC is broken”,
  2. or even the wrong version installed. The tricky part is the sheer volume of CODECs out there and the number of poorly programmed CODECs that potentially cause your system to crash.

The first step in correcting playback is finding out what CODECs are required. DVD files typically require one codec to display the video and a different codec for displaying audio.


There is no reliable way for the average user to determining which codec is on their system other than using a tool.  One tool is called Sherlock – Codec Detective, another Gspot codec information Appliance and a third K-Lite Tweak tool.

Sherlock and Gspot would high light in red the broken codec while K-Lite Codec Tweak Tool application was designed to scan your system for broken filters and remove the ones that were found.

How do I set up a screen for DVD with EMG relaxation screen where the DVD plays when the muscle tension is below threshold?

To set up a screen for DVD with EMG relaxation screen where the DVD plays when the muscle tension is below threshold:

  • Place a bar graph on the screen and connect it to the EMG (rms) channel.
  • In the Instrument Settings, set your Threshold Type to Manual or Lagged (If lagged, set the lag to 5 %. You can adjust that setting later).
  • Make sure to set the Output ON option to Below Threshold.
  • Give the instrument an Output Name.
  • Place a DVD instrument on the screen.
  • Pick one of the four DVD actions (ex. Resizing Action) and click on the Instrument Boolean Output option.
  • In the drop down list, select the EMG bar graph's output name.
  • In the Boolean is True section, click on Enlarge (You want the DVD to play at full size when the muscle is relaxed and shrink when over threshold).
  • Optionally, define the Resizing step to more than the default 1 (2 is usually my choice).
  • Click OK to accept your settings.
  • Save the screen.
I can't hear any sound when playing DVDs. What do I do?

If you can hear sound when you play a CD, but not when you play a DVD, first make sure that your computer meets the hardware and software requirements for DVD playback. Then, get the latest driver updates available for your computer's DVD-ROM drive by scanning for updates on the Windows Update Web site or by visiting the hardware manufacturer's Web site.

If your DVD-ROM drivers are up-to-date, but you still can't hear sound, see the question, "How do I fix sound device problems?" in the Media Advice archive.

How do you select a specific video track 'chapter' when using BioGraph Infiniti DVD instrument?

When the movie is playing, you can pause the session and right-click over the DVD instrument to open the instrument's popup menu:

Right click

When you click the Select Chapter option, a small window opens where you can scroll numbers up and down to find the desired chapter number (the available numbers depend on the DVD that you are using):

Select Chapter

Select a chapter number and click OK.

Note that the DVD instrument has four behaviours (actions) that can be controlled from physiological input. How the DVD feedback on the particular screen you are using depends on the settings that were defined when the feedback screen was built.

When running BioGraph Infiniti on two monitors, I cannot see DVD video on my second monitor. All I see is a black area where the video should be. How do I fix this?

Certain video cards that use video overlay may not display properly on a secondary monitor when running in dual monitor mode.

The video card may only support video overlay on the primary monitor, the first application requesting a video overlay will get it, independent of the monitor on which the DVD instrument is on. Stretching a single video across more than one monitor isn't supported.

There are special settings for video overlays in extend desktop mode, but those settings could be disabled. Somtimes it is possible to force the single video overlay to the secondary monitor.

Right click on your desktop and go to Properties
Click on the "Settings" tab
Change the screen resolution (up or down) and click oK
change the resolution back to the original setting and Click the OK button to confirm these changes

By changing the screen resolution it might force video overlay to the secondary monitor.

Z-Score

How do you format and export data from BioGraph Infiniti for Neuroguide?

Export the raw EEG data from BioGraph. Make sure you export only the data (uncheck Header, Time column and Events) and only f rom raw EEG channels. Keep track of where you store the txt file, you will need it when you get to NeuroGuide.
You must also keep track of the 10-20 locations of your electrodes during the BioGraph session, as you will need to tell NeuroGuide this information. When you recorded the EEG in BioGraph, you should have used 10-20 locations and a linked ears reference.
In NeuroGuide, create a new montage using the montage editor. Here you will have to create the channels you used to record the data in BioGraph. i.e. if you recorded from F3 and F4 in BioGraph, you will have to create a montage in NeuroGuide with the following two channels: F3-LE and F4-LE , exactly like that (with linked ears reference) and in the right order (corresponding to the BioGraph channels.
- Name and save the montage
- From the file menu in NeuroGuide, select File, Open, Text File (uV).
- Locate the BIoGraph export (.txt) file on your computer
- from the txt file import dialog box, uncheck "Header is in file", and select the montage you created from the list below.
- Text file delimiter, select "Comma"
- Sampling rate, select "256" (assuming you recorded at 256 Hz)
- Collection Hardware, select "Other"

If your montage was done right, the BioGraph EEG data should be displayed in NeuroGuide. Save the session and you will have it permanently.

Miscellaneous

To do an assessment and not use a preset protocol what is the procedure?

Using Biograph, a pre-existing protocol can be modified (the Activity’s # of cycles, the steps’ durations as well as changing the screens used).

To do so, select Start Script Session ?

select the Patient, and press Define New Session ?

Edit Script Settings ?

select the activities that needs to be modified

(such as work/rest, or contract and hold… Activities that have duration that is anything but 0).

If the developer tools are provided, the protocols can be modified using them (will be explained later, if needed).

Also, an open session can be recorded, and using the space bar on the keyboard, markers can be set during different durations, to further review them.

The next step will be reviewing the session, after selecting the client, and choosing to review the desired session, you have to select one or more review screens.

Click on the Select Screens button.

You can choose any 5 screens, by holding the [Control] or [Shift] key, that are listed for the selected channel set.

Click Ok to return to the Review Session Confirmation dialog box and click Ok, again.

The main purpose of reviewing data is to reject artifacts and generate reliable statistics. Session statistics can only be as good as the data from which they are generated. If the recorded signal is of poor quality, the statistics will reveal more about the amount of noise affecting your recording than about any progress your client might be showing. Even with the best recording techniques, noise in the signal cannot be completely avoided. This is why artifact rejection is important.

To scroll through the recorded data, click and drag the scroll bar, on the button bar, at the top of the screen.

When you locate an artifact, you can place a rejection segment over it.

To place an artifact rejection segment over a section of noisy data, bring the mouse cursor to the beginning of the section that you want to reject.

1) Press the [Control] key, on your keyboard;

2) click and hold the left mouse button while

3) dragging the cursor to the right until you reach the end of the section;

4) When you reach the end, let go of the mouse button.

You can let go of the [Control] key as soon as the mouse button is pressed.

The auto-rejection options can be found in the Edit menu. When you select Review Mode Auto-Rejection Settings, the following pop-up appears:

You can only place artifact rejection segments on single-line graph instruments. If you get an error message, you have to select a different screen for reviewing.

You can then review manually the session recorded to evaluate the patient, and you can also calculate statistics for the session, To calculate statistics for the session, click on the Calculate Statistics button, in the button bar.

You will see a pop-up message telling you that the program is Processing Session Data and then the Statistics pop-up appears. Click Close to close the pop-up.

To print the session statistics and other relevant information, select Session Report , and then select the features to be printed,

if you are using the MyoTrac Infiniti, when choosing the open display option, the session can be recorded and saved on Compact Flash (CF) and then reviewed via Biograph Infiniti.

You can also modify the existing scripts by selecting the Custom button on the unit and adjusting the parameters. You have the option to save the modified script on the unit or proceed to the session without saving.

When you are in open display session how do you change the threshold?

Using Biograph Infiniti: to adjust the threshold click on the graph instrument and you can enable any of the scale and threshold options on the toolbar shown below. Also you can drag the thershold bar using the mouse.

The threshold line on a Bar Graph, Line Graph and Animation Scale can be adjusted in the same way as the vertical scale.

The minimum and maximum scale values can be changed by clicking on the up and down arrows to the right of the text boxes labeled Thr1 and Thr2.

The numbers increase or decrease by 0.1, but when you click on the button , the numbers change by 1. The text box labeled Thr1 is for single threshold graphs, while Thr2 is for double threshold graphs like the multi-line graph that can have up to two guidelines.

On the unit: To change a threshold, press The button is used to select the threshold of either channel A or B (selected channel in bold). With either A or B selected, use the + and buttons to move the position of the threshold up or down on the range. The button below depicts an eye either open or closed . This is used to show or hide the selected threshold.

The exported client data cannot be read, and shows flat lines. Why?

The file attributes of this session probably were changed when a "Read Only" mediums, like a CD or a DVD, was used to back-up the session data.

This does not happen when Zip Drives or Flash Card memory drives are used to transfer data from one system to another. It also doesn't happen when session files are zipped to a single archive file before being burned to a CD.

To fix you can change a file's attributes by right clicking over it and selecting "Properties". At the bottom of the dialog box, you can see a check mark in "Read Only." Remove the check mark to make it accessible from BioGraph.

How can I make the EEG signals on the line graphs run more smoothly when there is an AVI that plays in both directions and has sound that is set to alarm?

When a feedback screen has at least the following instruments and settings:

  • An AVI: set to play in both directions, threshold dependent, has a scale and connected to an EEG signal. The sound is any of the 3 sound files provided (MIDI, Wave or MP3) set to alarm and plays above or below threshold.
  • A single line graph: connected to a different EEG signal. While recording a session, the EEG signals on the line graph stalls. This event occurs when the signal on the animation instrument passes the threshold twice in quick succession, thus triggering the sound and the AVI changing direction of play.

Using a combination of sound and animation file sizes can reduce the stall time. The smaller the files size the smaller the stall time. It is recommended to use a Wave or MP3 file for the sound since a MIDI file will stall the signal no matter how small the its file size

How do you backup clients information from within the BioGraph Infiniti Software?

Within the BioGraph Infiniti Software you could prepare clients files for backup with either the archive function, or export function.

Archive Client(s): The Archive Client(s) function allows you to move client(s) files from the system's Main Database to a remote location - i.e., to a backup directory on a server or to a removable Drive.

Be aware that if you want to remove a client(s) file from the database, and do not want to delete the client(s) permanently, you must use the Archive Client(s) function.

  • Use Export Client(s): If you own more than one BioGraph Infiniti systems and would like to transfer client files from one system to the other,
  • use the Export Client(s) function to copy the personal information and previously recorded sessions to a temporary folder location on the hard drive. From the folder, the client file can be copied or moved to an external storage device (ex. removable drive or Compact Flash Card), for transfer between systems. To export one or more client files: Create an empty folder on one of your drives. Call it "Exported Clients 01" (or whatever tickles your fancy. Over time, you can have any number of those folders, 01, 02, 03, etc...)

From the Client Database, select all the client files you wish to export (Shift-click or Control-click) and click Export Clients When the program asks if you're sure you want to export the selected client files, say Yes.

Locate the empty "Exported Clients 01" folder and click OK.

Once all your client files are exported, you can move the "Exported Clients 01" folder to another drive on your network or burn it to a CD or DVD ROM. You can also use a USB drive, if you want, to move the data around.

Note that the folder includes a collection of numbered folders and one "Clients.dat" file. You will need both to be able to re-import the client files

To re-import the client files, click Import Clients media on which the "Exported Clients 01" folder is and double click on it DO NOT SELECT ANYTHING IN THE FOLDER and Click OK.

When the Client Database popup opens, select as many clients as you want to import and click OK.

Note: If the client files were exported in a prior version, you probably will have to run the " upgrade BioGraph Infiniti Files" applet (in the Start > All Programs > Thought Technology > Infiniti program group) to convert older version client files to whatever version you're at If you'd rather do this manually, using a third-party backup program, then all you really need to backup is two items:

The "csdb.ttl" file, in the C:\Program Files\Thought Technology\Infiniti folder (in BioGraph Infiniti versions 1—4) and C:\ProgramData\Thought Technology\Infiniti (in BioGraph Infiniti versions 5 Plus, "Windows Vista" and C:\All users Application Data\Thought Technology\Infiniti (in BioGraph Infiniti versions 5 Plus, "Windows XP") contain all the client information.

The \Clients folder, also in the C:\Program Files\Thought Technology\Infiniti folder(in BioGraph Infiniti versions 1—4) and C:\ProgramData\Thought Technology\Infiniti (in BioGraph Infiniti versions 5 Plus,"Windows Vista" and C:\All users Application Data\Thought Technology\Infiniti (in BioGraph Infiniti versions 5 Plus, "Windows XP"), contains all the session data (plus a copy of the csdb.ttl file, called BackupMain.ttl, which is refreshed daily by BioGraph) It's quite important that you backup both items at the same time, because they are synchronized. If you don't, you might end-up with Client database files with no client folder or vice versa.

To restore these files, simply re-install the software and replace the freshly created - but totally empty - "csdb.ttl" file and Clients folder with your archived ones.

Again, if these were from an older version of the program, be sure to run the "Upgrade BioGraph Infiniti Files" applet before you go ahead and run BioGraph Infiniti.

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