[Eeglablist] re-referencing when online reference is a scalp channel

[Denise Dal Lago]

Hi all,
I recorded EEG data using a 65-channel ANT Neuro cap with an online reference at channel 5Z (ANT Neuro labeling). I am now pre-processing the data in MATLAB with EEGLAB and need to re-reference to the common average. If I simply apply the re-reference, I will still have 65 channels with 5Z as an active channel. Should I remove the 5Z channel after re-referencing, or is it better to retain it? What would be the best practice in this case?
I am more familiar with the Biosemi recording system, where I didn’t encounter this issue.
Many thanks,
Denise



Denise Dal Lago, PhD
Research Fellow
Department of Psychology, University of Bologna
Viale Berti Pichat, 5 -40127 Bologna, Italy