Hello,

I would like to examine the topographic maps in the data, but the Fp1 and Fp2 channels of the EEG record were taken from another physiological signal. So, I should delete them. I selected the data by 'edit+ select data' and I selectively eliminated all channels except FP1 and Fp2. When I draw the topographies of the channels in the new data I obtained, although I expect that there is no activation in these channels, the region in the deleted channels looks red, that is, high. Why do you think this is happening and how can I overcome this error?

I am currently doing group analysis and I would like to ask if there is a way to eliminate Fp1 and Fp2 channels and draw their topographic maps in EEGLAB correctly.

Attached is a screenshot of the channels and topography plot image for you to get an idea. I would be very grateful if you help me with the problem I have.

Thanks.

Demet