<br clear="all">I am recording data from C3 and C4 with earlobes as reference electrodes. the events are imagined and actual left/right hand movements initiated by an arrow on the screen. there are a couple of problems which im facing:<br>
1) the data from both c3 and c4 electrodes looks very similar. the sampling frequency is 1000Hz and i dont understand why both channels have approximately the same sample values<br>2) i have been looking for changes that reflect a hand movement in raw eeg data , power spectral density of alpha band(8-12hz) and at fft of eeg signals but no luck so far, can you guys please help in this regard your help will be greatly appreciated<br>
<br>Best Regards,<br>-- <br>Mohammad Anas