multi person, multi channels SSVEP on OpenBCI
We have tried to observe multi-channels SSVEP on computer with Cython, the details of our experiment are following:
1. two people , channal 1 and channel 2
2. Oz, Cz, AFz; Oz is the measurement connected to N1(N2 fot the other), Cz is the reference connected to P1(P2), AFz is GND connected to BAIS. The connection is like 'Shark Attack' experiment.
The question is:
We found the signal in one channel could influence the other, which should be calculated individually, for example, if we found a peak in channel 1, there could be the same peak in channel 2, but the peak shouldn't appear in fact. Why does it happen? How could we analysis the mutili-channal SSVEP individually with Cython?