[Eeglablist] Which is the best way to measure the "alpha" oscillation?

[장진원]

Dear all,

I appreciate some good ideas on identifying alpha frequency peaks. I think
one interesting part of alpha oscillation is when we start statistical
analysis across different groups. Depending on environmental or individual
differences, some subjects show two distinctive alpha frequency peaks,
while others might demonstrate only one distinctive peak on power spectrum
(of course there are many cases in which peaks are non-identifiable).

In this sense, it's not easy to make an a priori decision on whether such
spectral differences are derived from individual differences on EEG or
significant group features. Maybe implemtation of different pipelines
altogether is a rough solution.

Best Regards,
Jinwon
On Thu, Apr 30, 2026 at 9:53 PM Makoto Miyakoshi via eeglablist <
eeglablist at sccn.ucsd.edu> wrote:

> Hi Jinwon,
>
> > Which do you think is the best way to characterize the
> neurophysiological activity often represented as "alpha" oscillation?
>
> FOOOF. See Cedric's recent simulation
>
> https://urldefense.com/v3/__https://github.com/sccn/OneOverF/discussions/12*discussioncomment-15457848__;Iw!!Mih3wA!GfEA5WyYuIcYmr4WOWO3EJhMidF84M_wSHKSSlcpqa5bKxQRVbe8p_Bur6_VQGKMEUZ8fCFYednTtsYAbx22J_Dqo2Q$
>
> Makoto
>
> On Wed, Apr 29, 2026 at 10:19 PM 장진원 via eeglablist <
> eeglablist at sccn.ucsd.edu> wrote:
>
> > Hi all,
> >
> > There have been long controversies on measuring alpha frequency power.
> Some
> > researchers (especially in clinical fields where electrical engineering
> is
> > not familiar) use frequency bands (8-12Hz or 8-13Hz) with FFT or Welch's
> > method to obtain spectral power. Other behavioral scientists prefer
> > subdivisions such as lower alpha band (8-10Hz) and higher alpha band
> > (10-12Hz). Recent advancement on FOOOF also enables the isolation of
> > periodic components to discover individual frequency peaks. There are
> > numerous other techniques that could specify the regions of eeg
> activities.
> > Which do you think is the best way to characterize the neurophysiological
> > activity often represented as "alpha" oscillation?
> >
> > Best Regards,
> > Jinwon Chang
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