[Eeglablist] Brain PSD thresholds by frequency band

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Jan 24 15:45:27 PST 2017

Dear Alberto,

After performing ICA, you evaluate each IC not only by their PSD but also
their spatial location etc. If an IC shows unmistakable EEG characteristics
in spatial and time domain, I would take it a brain EEG even if delta power
is 0-20 (??? what is 0-20 anyway? uV^2/Hz?)


On Wed, Jan 18, 2017 at 10:32 PM, Alberto Sainz <albertosainzc at gmail.com>

> Hello,
> I am struggling a bit with ICA rejection when measuring PSD. I am not sure
> if i am prunning too much data when i look at some results. For example, I
> saw references of delta power between 0-6 and others between 0-20. I am not
> sure when high delta power (20?) is an artifact or brain activity.
> For alpha band right now i dont get power values larger than 1.
> Do we have any reference for (EEG-measured) PSD thresholds by frequency
> band? Also any for typical PSD artifacts like eye blinks?
> I hope I explained it correctly.
> Thanks
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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