Real-time integration of eye tracking and EEG

by The Acagamic

It is becom­ing more pop­u­lar to inte­grate eye track­ers directly with EEG acqui­si­tion hard­ware (and soft­ware). As the com­pany Advanced Neuro Technology reports, they have now cre­ated a real-time sys­tem inte­gra­tion of their ASA-LAB with Tobii eye track­ers.

Now, this sounds really excel­lent as the two sys­tems now also share event infor­ma­tion (for exam­ple trig­ger data), which makes analy­sis even one step eas­ier. Nevertheless, it would be really inter­est­ing to know whether appli­ca­tion of an EOG becomes unnec­es­sary as blink infor­ma­tion (which shows as an arte­fact on the EEG record­ings and has to be elim­i­nated before analy­sis) could be received from the eye tracker directly.

Nevertheless on the web­site it still says that EOG could be acquired and related to other psy­chophys­i­o­log­i­cal data (like EMG, res­pi­ra­tion and GSR). It also seems that any pro­cess­ing and trans­for­ma­tion of the data (like FFT or such) can­not be done in real-time and it post­processed for analy­sis. I kind of hope that Biosemi, whose ActiveTwo sys­tem we are cur­rently using, are catch­ing on to the trend and in com­bi­na­tion to the Jazz eye tracker sup­port they already pro­vide, add sup­port for the IMHO supe­rior Tobii systems.

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