[Eeglablist] Clarification Needed on EEG Analysis in EEGLAB

[m za]

Dear all,

 I hope this message finds you well. I am reaching out to seek your
guidance on two issues I am currently facing regarding EEG analysis using
EEGLAB.

First, I have a question regarding the channel statistics section. When we
assess channel normality, I understand that if the channel deviates
significantly from Gaussian distribution, we consider it non-Gaussian and,
thus, not EEG. However, I would like to clarify the general assumption we
make about data distribution when we do not have any distribution data,
specifically whether we can safely assume it to be normal.

Secondly, regarding the SIFT software, I am concerned about the
implications of not meeting the white noise criterion. Would this pose a
problem, or can the issue be mitigated using surrogate criteria to
eliminate invalid connectivity?

I would greatly appreciate your insights on these matters.

Thank you for your help!

Best regards,

Marjan