[Eeglablist] EEGLAB Orientation

[Makoto Miyakoshi]

Hi Devvarta,

> Could you please open this zoom session for others as well?

Sure, gather as many participants as you want and let them ask as many
questions as necessary.
I'll be available after 7:00 am in New York time (EST) which is 5:30 pm in
Bangalore. I prefer it in the morning rather than the evening/night.

I notice that there has been a large and constant need for extracting EEG
power using EEGLAB, which is only partially supported by GUI.
After our discussion, maybe I can summarize the requested functionalities
into a solution in the form of EEGLAB plugin. It should be pretty easy.
What I want to know is the type of output format you need most. Is it ascii
or Excel? Do you want a result in linear scale (microV^2) or in dB? Do you
want a mean power within a frequency band (with SD across sliding windows)
or full freq bin resolution (which is already available in EEGLAB spectopo)
etc..

I like the idea of robust PSD proposed by Melman and Victor (2016) so that
you do not need to worry too much about data cleaning.
https://urldefense.com/v3/__https://pmc.ncbi.nlm.nih.gov/articles/PMC4903894/__;!!Mih3wA!Hc_qvUxHKj94lakBpoAoDLDmyqzks4elWCUSSecAgiLfWsompHx83bc4_GJA8f1FYPh9Rceqb8iycYCC-UFVaSR4uL8$ 
I have long thought that the averaging process in Welch's method should be
replaced with median because EEG recordings can contain pretty bad
outliers. At least, outcomes from Welch's method by mean and median can be
compared to evaluate the window-mean PSD's deviation from the window-median
PSD.

Grace, if this selection of time does not work for you, we can set a
separate Zoom meeting. Tell me what time zone you are in.

Makoto


On Fri, Nov 22, 2024 at 3:42 AM Devvarta Kumar <devvarta.k at nimhans.ac.in>
wrote:

> Hi Mokoto
> I assume many of us would be interested in understanding the process of
> calculating power in different bands in raw EEG. Could you please open this
> zoom session for others as well?
> Regards
>
> Devvarta Kumar, Ph.D.
>
> Professor
> Department of Clinical Psychology
> M. V. Govindaswamy Building
> National Institute of Mental Health and Neurosciences,
> Hosur Road,
> Bangalore,
> Karnataka-560029
> India
>
> Ph: +91-80-26995188
>
> https://urldefense.com/v3/__http://www.nimhans.ac.in/users/dr-devvarta-kumar__;!!Mih3wA!E8Vsq9Vu8Q4ZAl8UIb5elP9m72UAtG-_h15RsH4N7qURhjnEctf1NKia1NpntFgQlL_UtZbHh_sQjnDjaxBj7B3Oazg$
>
> ResearchGate:
> https://urldefense.com/v3/__https://www.researchgate.net/profile/Devvarta_Kumar/contributions__;!!Mih3wA!E8Vsq9Vu8Q4ZAl8UIb5elP9m72UAtG-_h15RsH4N7qURhjnEctf1NKia1NpntFgQlL_UtZbHh_sQjnDjaxBj8leJO1o$
>
> ----- Original Message -----
> From: eeglablist at sccn.ucsd.edu
> To: eeglablist at sccn.ucsd.edu
> Sent: Friday, November 22, 2024 1:51:05 AM
> Subject: Re: [Eeglablist] EEGLAB Orientation
>
> Hi Grace,
>
> If your group wants to Zoom with me, I'll be available. Which time zone are
> you in?
>
> Makoto
>
> On Thu, Nov 21, 2024 at 2:50 PM Grace Bang via eeglablist <
> eeglablist at sccn.ucsd.edu> wrote:
>
> > Hello!
> >
> > We are 3rd year medical students trying to conduct research where we
> > collect brain wave activity data using the CGX Patch 2-channel EEG. We've
> > been having a lot of issues trying to navigate how to use EEGLAB to
> process
> > the data. We just want to be able to quantify the number of alpha and
> beta
> > waves present in the raw data. The resources we've read online have been
> > somewhat helpful, but we are looking for someone who can jump on a
> > Zoom/phone call to help fill some gaps of knowledge. Neither of us have a
> > background in more complicated softwares/coding/EEGs so any guidance
> would
> > be greatly appreciated!
> >
> > - Grace Bang, OMS-3
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