[Eeglablist] Invitation to collaborate on an open paper about EEG’s 1/f power distribution

Thu Nov 6 00:53:35 PST 2025

Dear Makoto, Dear other colleagues,

here is what i sent to Makoto. It is still valid.

Best regards,

Tzvetomir

-------- Forwarded Message --------

Subject: 	Re: [Eeglablist] Invitation to collaborate on an open paper 
about EEG’s 1/f power distribution
Date: 	Wed, 5 Nov 2025 08:28:24 +0100
From: 	T.Tzvetanov <t.tzvetanov at neuropsyphy.io>
To: 	Makoto Miyakoshi <mmiyakoshi at ucsd.edu>

Dear Makoto,

I am interested in the topic since i saw the first emails about it.

I would like to join the topic and see what I could bring on it.

Best regards,

Tzvetomir

PS I have worked on EEG experimentation and analysis; for many reasons 
nothing is published, yet.

-- 
Tzvetomir Tzvetanov
ORCID:https://urldefense.com/v3/__https://orcid.org/0000-0002-2553-4741__;!!Mih3wA!CBhO2d0sKVWoSUTjMm1z4n6odCoR-mn4pi7FFEu80l2Fx6FQssDmFte6myOjIZd_eAwotqmuaoo7lLulFSN_CAJjVvUJNvjeiA$ 
---
email:t.tzvetanov at neuropsyphy.io ; Tel: +33769166611

On 05/11/2025 16:40, Makoto Miyakoshi via eeglablist wrote:
> I'm surprised to find many responses in just over a night.
>
> Ivano, Toby, Maruti, Meha, Tzvetomir, Dominic, and Adam--you replied to me
> personally. Please reply to the mailing list directly so that other
> subscribers can read your post.
> Just reply to the list without editing the email title. For more detail,
> see this pagehttps://urldefense.com/v3/__https://eeglab.org/others/EEGLAB_mailing_lists.html__;!!Mih3wA!BPiQbrV-eQ7cXQTAeozwIJV84VGCG_HpjMHdu1kxPyOJuNbmldwUuMg4R7aVQUmRjhxB3ZQoPR12o77fCQMdXX3r0GI$ 
>
> Maybe we need a Google Document Spreadsheet to manage the potential
> authors' names.
> Can someone volunteer to manage it?
>
> %%%%%%%%%%%%%%%%%%
>
> I was telling Mate and Cedric that I was probably the least interested in
> this topic. I was very impressed by Gao and colleague's paper (2017
> NeuroImage) that the spectral exponent (SPEX) may reflect E/I balance. But
> there are other factors that contribute to SPEX. I thought the most
> dominant one was the 'dendritic filtering' described by the cable theory.
> If you read Electric Fields of the Brain (2006), you find this is one of
> the major sources of the 'low-pass filter effect' and the other factor,
> differences in network size across frequencies and spatial averaging
> principle at electrode/volume conduction, is more obvious. I want to know
> which factor is most dominant in determining the 1/f-ness, AMPA/GABA_A
> receptor balance, the 'dendritic filter' by the cable theory, or the
> differences in spatial network sizes across signal frequencies, otherwise I
> feel uneasy what we are discussing. Note that Voytek lab has been
> publishing really solid evidence using simulated, animal, and human
> datasets, so I have no doubt there. But still, I want to see by and large
> ratio of influence across those multiple factors.
>
> So, what is so interesting about the 1/f-ness? Can anyone tell me please?
>
> Mate and I will meet on Zoom on Nov 7, 11 am - noon in EST (i.e., the New
> York time zone). I invite you to jump in if you can make it.
>
> Time: Nov 7, 2025 11:00 AM Eastern Time (US and Canada)
> https://urldefense.com/v3/__https://ucsd.zoom.us/j/98219923907?pwd=YkR9t04S7N23IP7Rf1XZXmHvK5LXsY.1__;!!Mih3wA!BPiQbrV-eQ7cXQTAeozwIJV84VGCG_HpjMHdu1kxPyOJuNbmldwUuMg4R7aVQUmRjhxB3ZQoPR12o77fCQMdEZkHooc$ 
> Meeting ID: 982 1992 3907
> Password: 681398
>
> Makoto
>
>
>
> On Tue, Nov 4, 2025 at 7:07 PM Makoto Miyakoshi<mmiyakoshi at ucsd.edu> wrote:
>
>> Hello EEGLAB mailing list,
>>
>> Some of you may recall the long, dense, and ever-continuing discussion we
>> witnessed this summer about EEG’s 1/f power distribution. I’m sure many of
>> you wondered, “Can they please stop quoting papers while speaking?” That
>> conversation seemed to have ended on the list. But it has continued
>> off-list! And now, it has led to the idea of writing a collaborative paper.
>>
>> We’d like to invite anyone interested to join this open project. You don’t
>> need to be a specialist; genuine curiosity and a willingness to contribute
>> are what matter most.
>>
>> If you’d like to participate, please reply to this mailing list so that
>> everyone can stay in the loop.
>>
>> For those curious, I’ve also included below a brief history of EEGLAB
>> mailing list–initiated publications.
>>
>> Makoto
>>
>> %%%%%%%%%%%%%%%%%%%%
>> There have been several papers initiated through collaborations among the
>> EEGLAB mailing list community and myself. Perhaps the most memorable one
>> was the *ICA's bug *paper:
>>
>>
>> https://urldefense.com/v3/__https://www.frontiersin.org/journals/signal-processing/articles/10.3389/frsip.2023.1064138/full__;!!Mih3wA!BPiQbrV-eQ7cXQTAeozwIJV84VGCG_HpjMHdu1kxPyOJuNbmldwUuMg4R7aVQUmRjhxB3ZQoPR12o77fCQMdB87tEFY$ 
>>
>> We can find the origin of this project in the following post.
>>
>> *On Fri, May 7, 2021 at 2:25 PM Makoto Miyakoshi <mmiyakoshi at ucsd.edu<https://sccn.ucsd.edu/mailman/listinfo/eeglablist  >>
>> **Dear subscribers,
>> **Recently, there are multiple independent posts about the data rank issue **with ICA. In response, I am thinking about running a simulation **experiment **with a visiting scholar to SCCN as a small project on this issue for **publication. I would appreciate it if you can give me any of the **following **as an input.*
>>
>> I made it festive: I invited a high-school intern to join as a co-author
>> (his coding skill was GOOD); I also invited a person whose name had been
>> mysteriously engraved for over a decade in an annotation of EEGLAB’s code
>> in question; I cited four authorities via unfashionable “private
>> communication”; and yes, I gave the paper a catchy title that the first
>> author did not like… etc., etc.
>>
>>> * > On Fri, May 7, 2021 at 2:25 PM Makoto Miyakoshi <mmiyakoshi at ucsd.edu<https://sccn.ucsd.edu/mailman/listinfo/eeglablist  >>
>> *>* wrote:
>> *>* >
>> *>* >> Dear subscribers,
>> *>* >>
>> *>* >> Recently, there are multiple independent posts about the data rank issue
>> *>* >> with ICA. In response, I am thinking about running a simulation
>> *>* experiment
>> *>* >> with a visiting scholar to SCCN as a small project on this issue for
>> *>* >> publication. I would appreciate it if you can give me any of the
>> *>* following
>> *>* >> as an input.
>> *>* >>
>> *>* >>   - Questions (what is puzzling for you? No need to be shy for asking
>> *>* >>   'dumb questions')
>> *>* >>   - Requests (if you want to know particularly X and/or Y on this issue,
>> *>* >>   I may be able to give you the answer based on the simulation test)
>> *>* >>   - Suggestions (about methods, data type, applications, etc)
>> *>* >>   - Reports (when ICA failed, what did you see?)
>> *>* >>
>> *>* >> If you are interested in working with me to make a contribution to this
>> *>* >> small project, please reply or contact me mmiyakoshi at ucsd.edu.<https://sccn.ucsd.edu/mailman/listinfo/eeglablist  > If your
>> *>* >> contribution is substantial, I'll offer you to be a coauthor. Probably
>> *>* we
>> *>* >> will need as many strange results as possible...?
>> *>* >>
>> *>* >> Probably this is the first attempt to run an open experiment on the
>> *>* EEGLAB
>> *>* >> mailing list--please join us and let's find out what happens!
>> *>* >>
>> *>* >> Makoto*
>>
>>
>>
>>
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