Mark. Sync. Audit. Know precisely when events are happening. Keep recorders in sync.
The biometric data that you collect, e.g. from EEG or eye tracker, is vastly more useful when it includes markers that tell you exactly when certain events occurred.
StimTracker can detect the onset of these events and send them to several recorders simultaneously.
After its introduction in 2008, StimTracker became key to integrating a psychophysiology lab, offering the first true plug-and-play solution for EEG recorders, eye trackers, NIR and other recorders.
StimTracker Duo offers dual outputs, and StimTracker Quad adds support for vocal response onset (voice key) and more light sensors; see table below for details. Types of events detected autonomously by StimTracker to avoid operating system delays.
|Marks onset of visual stimuli (Fast light sensors included)||Yes||Yes|
|Number of light sensor inputs - On Quad model you can use 3 light sensors and a microphone (for voice key), or 4 light sensors and no microphone.||3 + 1||2|
|Marks onset of auditory stimuli||Yes||Yes|
|Marks onset of RB-x40 response pad key presses||Yes||Yes|
|Marks onset participant vocal response via microphone||Yes||-|
|Accepts external TTL input||Yes||-|
|Time-stamped output via USB||Yes||Yes|
|Number of simultaneous m-pod outputs||3||2|
|Direct TTL output (m-pod delivers TTL output as well)||Yes||-|
|Optional Raspberry Pi support||Yes||-|
StimTracker (both old and new) accepts five sources of input: light sensors, audio, microphone voice key, key press information from a RB Response Pad and USB event codes.
Configurable Output: TTL output from StimTracker 2G is now delivered using m–pod. This means that you can now map any input signal to any TTL output pin. You can even map several input signals to a single output pin. Cool stuff.
Multiple Outputs: The Duo supports simultaneous output to two m–pods. Quad supports output to three m–pods and a fourth general purpose TTL output.
Raspberry Pi Support (Quad only): For the tinkerer in you, you can add a Raspberry Pi board inside StimTracker Quad, allowing event markers to be sent over Ethernet, e.g. to other devices via labstreaminglayer (LSL). Software support is not provided for the Pi, but at least the option is present.
Full Voice Key (Quad only): Upon detecting the onset of a vocal response, the 1G model would send a TTL signal out, leaving SuperLab or other stimulus presentation software in the dark. StimTracker Quad will additionally send voice key onset information to the computer via USB.
Timeline Auditing: The new StimTracker can send time-stamped information to the computer via USB, providing an audit trail of exactly when stimuli were presented or participants responded.
StimTracker 2G also includes all the new software features found in c-pod. There are other improvements as well, e.g. the ability to set the analog thresholds via software commands and the use of 4-layer circuit boards (instead of 2) to improve noise immunity.
The Duo model is housed in a thinner enclosure. Due to space and cost considerations, the voice key feature is now found in the Quad model only. For the same reasons, the Duo supports only two light sensors instead of four.
Also on the Quad model, the microphone and light sensor 4 share the same connector. You can use four light sensors and no voice key, or three light sensors with voice key.
And last, the big, bulky signal adapter blocks are gone and replaced by m–pod.
When sending event markers via USB, StimTracker delivers them with jitter free precision when used with SuperLab 6 or with our open source Python or C++ libraries. Delay is guaranteed to be 2 milliseconds exactly, every time.
The combination of powerful 32-bit microprocessors and our software makes possible the following features:
To send say, a 10ms long event marker with other I/O devices, an app needs to raise the output line, wait 10ms, then lower the line. With StimTracker, all the software needs to do is send a command and resume its work while microprocessors take care of delivering the pulse.
A truly unique feature: tell StimTracker when to send pulses at a later time, e.g. to mark emotional points during a movie presentation.
Use StimTracker as a signal generator on an output line or as a more complex pattern generator.
Send event markers from your computer (via a response pad) and mark the onset of key presses automatically with m-pod. m-pod can be used only with:
All m-pod models include the necessary cable(s).
Send event markers from your computer with only a 2ms delay that is jitter-free. It's ready to plug into your EEG, eye tracker, NIR, or other recorder listed below.
All c-pod models include a USB cable plus any attachments that might be necessary to connect.
One year warranty. Free technical support from the Manufacturer, Cedrus
|StimTracker Duo Base Model (specify which m-pod is required)||£ 1558.71||€ 1773.86|
|StimTracker Quad Base Model (specify which m-pod is required)||£ 1949.56||€ 2218.66|
|m-pod - to connect to RB-x40 response pad models & Lumina 3G controller||£ 390.07||€ 443.91|
|c-pod - ready to plug into your EEG, eye tracker, NIR or other recorder listed on our website page||£ 468.24||€ 532.87|
|Signal Adaptor Kit for StimTracker (specify connection type)||£ 97.71||€ 111.20|
|Lightsensor for use with StimTracker
Specify Black or White
|£ 30.49||€ 34.69|
|SuperLab USB-to-serial port adapter||£ 31.27||€ 35.58|
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Phone: +44 (0)1347 878041
Fax: +44 (0)870 622 0136