It is always good to know where the subject was looking. Similar oscillations could be generated by neurons as well, and the eye tracker helps to differentiate between the two types of signal. A good example is the microsaccade, which induces gamma-band response. Obviously they make it possible to analyze the effect on the EEG.
The eye events are helpful in many ways during the data evaluation. Such events appear as markers in the joint file. The eye tracker data is imported together with eye events like fixation, blinks, entering or leaving area of interest, and saccades. It is easy to share triggers between Brain Products’ systems and the EyeLink 1000 Plus, since both handle the same type of hardware (TTL) markers. As explained in the i ntroduction article to the Add Channels transformation, the synchronization between EEG and eye tracker data is based on common markers. The EyeLink 1000 Plus has some remarkable features, for example it offers ultrahigh sampling rates and recording in an MR environment. The tool supported three types of eye tracker (ASL, SMI and Tobii) and we promised more devices would be added.īrain Products now proudly announces the support of SR Research EyeLink 1000 Plus Eye Tracker data. It has the remarkable capability to expand the data acquisition beyond EEG and sensors, since it imports and synchronizes co-registered data streams to EEG.
The Add Channels transformation of Analyzer was introduced last year. How can an eye tracker help your EEG research? The EyeLink 1000 Plus Eye Tracker of SR Research joins the ASL, SMI and Tobii devices: from now on it too is supported by the Add Channels transformation of BrainVision Analyzer 2. EEG & Eye Tracking using actiCAP, BrainAmp and SMI RED
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