StimTracker
MARK. SYNC. AUDIT.
Know precisely when events are happening.
Keep recorders in sync.
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Why?
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.
Types of Events
There are two StimTracker models: Duo and Quad. The Quad adds support for vocal response onset (voice key) and more light sensors; see table below for details.
The onset of events is detected autonomously by StimTracker to avoid operating system delays.
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Onset of Visual Stimuli Fast light sensors included. |
 |
Onset of Auditory Stimuli Pass the audio via StimTracker, set threshold, and let it do the rest. |
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Event Codes via USB Send event codes from your stimulus presentation computer for added information. |
 |
Onset of Key Response Compatible with RB response pads (Quad model also accepts TTL input). |
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Onset of Vocal Response It’s like getting a free voice key device (Quad model only). |
Plug-and-Play, Flexible Output
StimTracker uses m–pod to deliver its signals. This means it’s compatible with more than a dozen popular recorders.
It also means that you can choose which types of events are sent to the recorder.
The Quad model adds direct TTL output and the option to install a Raspberry Pi board.
| Models Available For | ||
| ABM | AD Instruments | ANT Neuro |
| Biopac | Biosemi | Brain Products |
| EGI | Mangold | MindWare |
| Neuroscan | NIRx | Parallel port |
| SMI | Tobii Spectrum |
Jitter Free USB
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.
Power Packed
The combination of powerful 32-bit microprocessors and our software makes possible the following features:
Async Output
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.
Scheduler
A truly unique feature: tell StimTracker when to send pulses at a later time, e.g. to mark emotional points during a movie presentation.
Pattern Generator
Use StimTracker as a signal generator on an output line or as a more complex pattern generator.
The Family
| Feature |
StimTracker Quad |
StimTracker Duo |
| Marks onset of visual stimuli |  |
 |
| 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 | |
|
| Marks onset of RB-x40 response pads key presses | |
|
| Marks onset participant vocal response via microphone | |
– |
| Accepts external TTL input | |
– |
| Time-stamped output via USB | |
|
| Number of simultaneous m–pod outputs |
3 |
2 |
| Direct TTL output m-pod delivers TTL output as well. |
|
– |
| Optional Raspberry Pi support | |
– |
Software Support
Some software packages can deliver jitter free performance, but not all.
Jitter Free Software Support
SuperLab 6
Version 6 will be a free upgrade to all SuperLab 5 license owners.
C++ Library
Python Library
Others
E-Prime
We offer an E-Basic code sample. Precision is 5 to 8ms.
