[Eeglablist] Compute Amplitude Spectra in microvolts units using EEGlab

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Feb 18 14:42:47 PST 2014

Dear Joana,

Sorry for delayed response.
I don't think spectopo supports it. However, if you use a debug mode or
customize script to export the mid-products, you may get it.


2014-02-03 16:44 GMT-08:00 Joana Paiva <joanaispaiva at gmail.com>:

> Hi,
> I would like to know how to compute amplitude spectra in microvolts units
> instead microvolt^2/Hz units (PSD, output from spectopo) using EEGlab? I've
> already tried using spetopo for spectral analysis but I couldn't convert
> output values in microvolts units because I read that PSD consist in FFT
> multiplied by the complex conjugate of the Fourier component.
> Thank you,
> Best regards,
> --
> *Joana Paiva*
> MSc Student
> Biomedical Engineering
> Faculty of Sciences and Technology - University of Coimbra
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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