Repositioning Emotiv Electrodes to cortical region for MI

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sumitsoman
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Joined: Thu Oct 11, 2012 11:24 am

Repositioning Emotiv Electrodes to cortical region for MI

Post by sumitsoman »

We are working on building a motor imagery based BCI system. At the moment, we are constrained to use the Emotiv Headset as our acquisition device.

Going through available literature, we infer that the Emotiv system is sub-optimal in capturing motor imagery EEG due to absence of electrodes in the cortical region. This has also been our experience while using the OpenVibe scenarios for motor-imagery-csp with Emotiv headset, though it is also understood that mu-rhythm generation is subject dependent.

We would to know opinions on the following proposition:

If we detach two electrodes from the Emotiv headset to make them flexible, say from the frontal region, and then re-position them over the cortical region over electrode positions C3 and C4, would this be a preferable situation?

What could be the expected outcomes/ possible precautions/ risks, or the like in running the OpenVibe motor imagery scenarios in this case?

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