Compumedics Neuroscan Integration

EyeLink Eye Tracker Systems and Compumedics Neuroscan EEG Integration

Compumedics Neuroscan are a lead­ing provider of tech­nolo­gies for high-density EEG record­ings and electro-magnetic source local­iza­tion. Integrating Compumedics Neuroscan EEG hardware with EyeLink systems is very straightforward. Integration is achieved via standard TTL signaling, typically via a parallel port (or USB2TTL8 device) on the Display PC. The only other component required is a Trigger Cable (supplied by Compumedics Neuroscan).

EyeLink and Compumedics Neuroscan Integration Detail

• During task performance, the stimulus presentation software (e.g., Experiment Builder, PsychoPy, E-Prime, Presentation, PsychToolBox, etc.) simultaneously sends TTLs signals to the Compumedics NeuroScan equipment via a parallel port cable, and messages to the EyeLink Host PC via an ethernet link.
• The TTLs / Messages mark key trial events (such as stimulus onset / participant response etc), allowing the two data streams to be synchronized at the analysis stage.
• If neither the Display PC or Host PC has a parallel port, then we can provide a USB to TTL device with excellent timing properties. Please contact sales@sr-research.com for details.

Experiment Builder and Compumedics Neuroscan Integration

SR Research Experiment Builder software has a Biometric TTL node that simplifies integrating Compumedics Neuroscan EEG systems with EyeLink systems. The Biometric TTL Node allows users to:

• Select Compumedics Neuroscan as the Recipient Biometric Device
• Start and Stop Recording (if using Curry software for acquisition)
• Mark the beginning and end of the trial
• Send trial event markers (e.g., to mark stimulus / response onsets)

If you have any questions regarding EyeLink-Compumedics Neuroscan integration, feel free to contact us. We’re always happy to help.
 
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