[Eeglablist] default setting power spectral density

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Thu Jul 12 18:00:06 PDT 2018


Dear Lisa,

spectopo() help says

* If available, uses pwelch() from the Matlab signal processing toolbox,
else the EEGLAB spec() function.*

Here is Wikipedia page of the Welch's method.
https://en.wikipedia.org/wiki/Welch%27s_method

Yes it is a type of discrete FFT but it uses a window method.

Makoto

On Thu, Jul 12, 2018 at 11:06 AM Lisa GOUDMAN <Lisa.Goudman at vub.be> wrote:

> Dear,
>
>
>
> I have a small question regarding the settings of the power spectral
> density.
>
> The default of the power spectral density, is it based on a discrete FFT?
>
>
>
> Thank you very much for helping.
>
>
>
> Kind Regards,
>
> Lisa Goudman
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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