[Eeglablist] Critical pitfall of spectral power analysis?

[장진원]

Hi all,

Recently I found one interesting article that addresses the pitfall of
baseline correction that many scientists have used to transform EEG to
time-frequency domain. According to this article, power spectrum formation
is highly exposed to subject-dependent noise that independently affects
power spectrum regardless of signal. Because I am not an engineer who
majors signal transformation, I wonder how eeglab could handle this issue
in spectral power analysis because this article implies that using alpha
(8-13Hz) or theta (4-8)Hz is totally unacceptable in clinical studies.


Reference: Gyurkovics, M., Clements, G. M., Low, K. A., Fabiani, M., &
Gratton, G. (2021). The impact of 1/f activity and baseline correction on
the results and interpretation of time-frequency analyses of EEG/MEG data:
A cautionary tale. NeuroImage, 237, 118192.
https://urldefense.com/v3/__https://doi.org/10.1016/j.neuroimage.2021.118192__;!!Mih3wA!FUy2N9N5bZQJF1IM06-OIaXtDG8YvPWzfrSGxmJE6N_4DPqW9Irqgr9P4PajtadaJV9Jzo1Z9QWJsE2RPNZmbe-Mkw$ 

Best regards,
Jinwon Chang