[Eeglablist] Odd looking channel spectra
lindemann at cg.cs.tu-bs.de
Fri Jul 30 01:15:23 PDT 2010
I'm new to EEGLAB and EEG and am trying to familiarize myself with the
data processing tools.
When I visualize the spectra of my EEG channels with 'Plot > Channel
spectra and maps' (default setting) the spectra look quite odd (see link
below) although the EEG itself looks normal. It is plotted with 'Plot >
Channel data (scroll)', 'Display > Remove DC offset' = on. What could be
the reason for this?
I use EEGLAB v188.8.131.52b with Matlab 7.1.b The data were acquired using
the BioSemi ActiveTwo system with 32 electrodes on the head + 4
electrodes EOG and average mastoids as reference.
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