[Eeglablist] Fwd: The first official OneOverF online meeting

Tue Feb 17 06:42:49 PST 2026

Dear all,

Thanks everyone for attending the meeting, and for the wonderful points raised.

I couldn't stick around for the discussion part unfortunately, but based on the summary provided here, I really like the idea of writing up a paper on the potential mechanisms behind 1/f. Some of these are well-known in the literature already (e.g., dendritic filtering and E:I balance), although maybe not always expressed with as much clarity as Makoto did (looking at dendritic filtering in particular), but I think the soma-dendrite open field idea is novel. So it would serve as a review and an introduction to a new concept.

I think the mini "avdersarial collaboration" you describe, Makoto, with proponents and opponents of the E:I balance view providing different arguments, and potentially taking a vote to see how strong the consensus is around this question could form a part of this review.

Thanks,
Mate
________________________________
Feladó: eeglablist <eeglablist-bounces at sccn.ucsd.edu>, meghatalmazó: Athena Stein via eeglablist <eeglablist at sccn.ucsd.edu>
Elküldve: 2026. február 17., kedd 2:46
Címzett: Antonios Dougalis <antoniosdougalis at gmail.com>; Jazmin M <jazmin.morrone at gmail.com>
Másolatot kap: EEGLAB List <eeglablist at sccn.ucsd.edu>; Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
Tárgy: Re: [Eeglablist] Fwd: The first official OneOverF online meeting

Hi everyone,
Thank you for a really thoughtful meeting and for sharing these follow-up details. If it would be helpful, I’m happy to assist with working group set up and/or coordination.
Conceptually, I’m also very interested in how 1/f relates to non-invasive stimulation approaches. Our group recently developed and tested a stimulation waveform that combines broadband oscillatory and aperiodic components: transcranial endogenous current stimulation (Stein et al., 2026, Brain Stimulation). In that work we discussed 1/f in the context of excitation/inhibition balance, but I agree that this is likely a simplification of the mechanism.
Kind regards,
Athena

Dr Athena Stein

She/her
PhD, FHEA, MPH, BBiomedSc

Postdoctoral Researcher

Carolina Center For Neurostimulation

Department of Psychiatry

University of North Carolina at Chapel Hill, USA

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From: eeglablist <eeglablist-bounces at sccn.ucsd.edu> on behalf of Jazmin M via eeglablist <eeglablist at sccn.ucsd.edu>
Sent: Sunday, February 15, 2026 2:03 AM
To: Antonios Dougalis <antoniosdougalis at gmail.com>
Cc: EEGLAB List <eeglablist at sccn.ucsd.edu>; Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
Subject: Re: [Eeglablist] Fwd: The first official OneOverF online meeting

Dear Makoto, all,

Thank you very much for organizing and chairing such a truly
interdisciplinary meeting. It was inspiring to see so many scientists from
different backgrounds come together to openly exchange ideas, questions,
and uncertainties in such a constructive spirit—I am very grateful for the
opportunity to be part of these discussions!

Overall, I find the proposal to form a working group and develop a
comprehensive review of the potential mechanisms underlying 1/f activity
across scales—from cellular processes to dynamical systems—both timely and
highly valuable. A coordinated literature effort led by a collaborative
group could provide real clarity to the field, particularly by synthesizing
perspectives that are currently fragmented across sub-disciplines. I would
be very glad to contribute to this effort in any way that is helpful.

I also appreciate the creativity of the “mock trial” idea contrasting
optimistic and pessimistic interpretations of the 1/f–E/I balance
relationship. Beyond its playful framing, it could serve as a constructive
and thought-provoking method for revealing how evidence, priors, and
disciplinary background shape interpretation. Depending on how it is
structured, this could ultimately become an engaging way to surface
assumptions, clarify disagreements, and ultimately educate the community
(which is certainly of great value!).

I would additionally like to extend from Evie’s important point, regarding
the inherent complexity of these spectral patterns and the caution required
when assigning singular physiological interpretations. From this
perspective, I believe there is particular value in examining, not only
individual contributing mechanisms, but also how structural, functional,
and dynamic factors interact as an integrated system. Understanding how
processes such as synaptic physiology, dendritic filtering, spatial
averaging, and large-scale network organization jointly shape aperiodic
activity may be highly informative, alongside attempts to localize meaning
within any single explanatory axis independently.

From this more integrative perspective, for instance, the relationship
between aperiodic exponents and E/I balance may be best viewed as
context-dependent—potentially informative at a functional level, while not
necessarily specifying causal origin. Exploring potential multi-scale
interactions in a coordinated and transparent way, from my view, may
represent a meaningful contribution to the proposed working group.

Thank you again to everyone for supporting such an open and collaborative
environment. I very much look forward to contributing to the next steps and
continuing these discussions together!

Kind regards,
Jazmin M. Morrone

On Sat, Feb 14, 2026 at 7:25 PM Antonios Dougalis via eeglablist <
eeglablist at sccn.ucsd.edu> wrote:

> Dear Makoto,
>
> Thank you for arranging and chairing this meeting, it has been a very
> positive experience to see so many scientist coming together from different
> fields. Also a big thank to all the partners that have actively contributed
> and all those that attended!
>
> I find Athena's idea really pertinent to our cause and an excellent
> starting point.  I would thus like to join the working group and contribute
> to literature analysis and be part of a manuscript that openly verbalizes
> the issues-problems surrounding the determination of aperiodic elements and
> their significance in neurophysiological research. I think this is
> something that is currently missing from the literature and the combined
> force of so many scientist is a leap forward and a service to the
> community. I am thus very excited.
>
> On this front, I propose that we should create a join space where ideas
> could be elaborated and interested individuals could, for a start, write a
> small two to three paragraphs text on a chosen issue as discussed. I
> believe talking about the origins (what is represents) of LFP-EEG and the
> new ideas in the field is something important and then extending to what
> the aperiodic means in terms of physiology. To remind everyone some
> elements discussed in our meeting (to name a few,  Spatial Averaging, Low
> pass dendritic filtering, multiplicative and additive spectral theories,
> infra-slow soma-dendritic calcium currents, Fourier transforms of fast and
> slow synaptic components). Once the few first texts  exist then the picture
> of what can be written and the directions will reveal it self!
>
> I would also like to play the devils advocate on the interpretation of
> aperiodic exponents as proxies for excitation-inhibition balance (E/I
> balance). On this role I will take the side of those that believe that
> aperiodic exponent estimations follows E/I balance. That does not mean that
> aperiodic exponent does not follow something else too and thus is not
> exclusively bound as a direct proxy of E/I or that it points out to the
> causal root of the changes (i.e., implying causality). For instance, the
> changes in the aperiodic exponent seen in children related to axonal
> myelination (discussed with Makoto ) can be interpreted as secondary to
> myelination alterations and are indirectly related to E/I balance through
> changes in presynaptic terminal activity. Within this context, aperiodic
> component determination still captures a functional deficit (i.e., synaptic
> transmission alterations) but fails to determine the roots cause of those
> changes and can thus E/I balance disturbance can be seen as an
> epiphenomenon secondary to the real cause which is myelination alterations
> (e.g. Schwann cell loss due to neuroinflammation).
>
> All thoughts welcome
>
> Antonios Dougalis
>
> On Sat, 14 Feb 2026 at 05:25, Makoto Miyakoshi via eeglablist <
> eeglablist at sccn.ucsd.edu> wrote:
>
> > Update
> >
> > I added statistics of the meeting (72 participants, 101 min long) and a
> > link to a recorded video to the following page.
> >
> >
> https://urldefense.com/v3/__https://github.com/sccn/OneOverF/discussions/15__;!!Mih3wA!DVWV5gw0Xp6N6ZzjJMTkDVILQiFQGgKaShaGnEQOnaine9wyUG5Vh-G-lj931eN96xCCF_KiSwj-_aUL4N3HaDYcZ0Y$
> > The video and chat text are shared for internal use only.
> > Redistribution or reposting in any form is strictly prohibited.
> >
> > I appreciate those who volunteered for presenting (Eugen, Jamie) and also
> > speaking up for discussion (Michael, Maruti, Gian Marco, Evie, Antonios,
> > Athena).
> >
> > Here is my response to the comments which I could not reply during the
> > meeting:
> >
> > Lukas, you can see result figures taken from Whitham et al. (2007) which
> is
> > the most heartbreaking data for AMPA/GABA believers. Beware of overdose
> of
> > pessimism.
> >
> >
> https://urldefense.com/v3/__https://eeglab.ucsd.edu/wiki/Makoto's_preprocessing_pipeline*Ground_truth_of_EMG_removal_vs._data_cleaning_with_ASR*ICA_(For_150,000_page_views,_12/20/2020_added)__;Iys!!DZ3fjg!8JYWGtg8wAa0ls63m5YsenT3ah5N91QDwVeMNRbMi1X9SO9IuEiX0rU4vavGJln0CQFTygr0m1kgMu19ot52CBjW3Kc$
> >
> > Athena, check Mate's 2021 papar (Gyurkovics, 2021 NeuroImage) Figure 2
> and
> > Section 3.1. He reported correlation coefficient -0.1 (Kendall's tau).
> >
> > Eugen, in fact, we have FT in our hands but never see sinusoids.
> >
> > Overall, I found Athena's idea to 'form a working group and make a review
> > paper on all of the possible mechanisms across scales - cells to
> dynamical
> > systems etc. of 1/f' sounds like a good plan to me. The idea is close to
> > what I presented today. I can organize a group for that project and
> assign
> > jobs. However, people in that group will be mainly working on literature
> > review and not data collection or analysis--do any of you want to join
> this
> > working group?
> >
> > An alternative, somewhat crazy idea (as I hoped): We run a mock trial
> > between 1/f optimists vs. pessimists. The optimist group provides pieces
> of
> > evidence that supports 1/f == E/I balance. The pessimist group provides
> > pieces of evidence to refute it. Then we take a vote, superficially to
> > determine the winner democratically, but the real goal is to reveal how
> > many of us believe the E/I balance hypothesis from sociological interest.
> > This way, we can make use of the power of 180 researchers meaningfully
> more
> > or less, if not fully. Another idea is to involve some AI agents to play
> > the role of a judge to determine which group wins the debate. We may
> employ
> > different AI agents for their individual opinions. This way, we can
> > efficiently educate ourselves while having fun. Maybe we can separate
> > leagues for background, age, etc. to reveal how we see the same thing
> > differently. All the processes can be summarized into a paper for
> > publication.
> >
> > Makoto
> >
> > On Thu, Feb 12, 2026 at 3:51 PM Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
> > wrote:
> >
> > > Here is a program for tomorrow's meeting.
> > >
> >
> https://urldefense.com/v3/__https://github.com/sccn/OneOverF/discussions/15__;!!Mih3wA!DVWV5gw0Xp6N6ZzjJMTkDVILQiFQGgKaShaGnEQOnaine9wyUG5Vh-G-lj931eN96xCCF_KiSwj-_aUL4N3HaDYcZ0Y$
> > >
> > > On Sun, Feb 8, 2026 at 10:00 PM Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
> > > wrote:
> > >
> > >> Hi 1/f seekers,
> > >>
> > >> We will have our first official online meeting for interim reports.
> > >>
> > >> To get a sense of the scope of ongoing discussions, you can read more
> > >> than 200 exchanges of comments and opinions on various topics on this
> > page:
> > >>
> >
> https://urldefense.com/v3/__https://github.com/sccn/OneOverF/discussions__;!!Mih3wA!DVWV5gw0Xp6N6ZzjJMTkDVILQiFQGgKaShaGnEQOnaine9wyUG5Vh-G-lj931eN96xCCF_KiSwj-_aUL4N3HOE4VZVg$
> > >>
> > >> Where:
> > >>
> >
> https://urldefense.com/v3/__https://ucsd.zoom.us/j/3026035468?pwd=bQg61iUIe0AHfDQ5QSipOSEXi4FzCs.1&omn=96547457987__;!!Mih3wA!DVWV5gw0Xp6N6ZzjJMTkDVILQiFQGgKaShaGnEQOnaine9wyUG5Vh-G-lj931eN96xCCF_KiSwj-_aUL4N3HAyQwaZ4$
> > >> Meeting ID: 302 603 5468
> > >> Password: 1overF
> > >>
> > >> When: Feb 13, 2026 11:00 AM Eastern Time (US and Canada)
> > >>
> > >> What: Brief summary of current state will be presented by active
> > members.
> > >> The meeting will be recorded for those who cannot attend. The video
> > will be
> > >> available for download for a few months.
> > >>
> > >> Tentative time table
> > >>
> > >>    1. Keynote: How many mechanisms of 1/f? (Makoto: 10 min)
> > >>    2. Progress report 1: Additive vs. Multiplicative (Mate, 10 min)
> > >>    3. Progress report 2: GLM-based calculation (Cedric, 10 min)
> > >>    4. Progress report 3: Infraslow soma-dendrite current loop (Makoto,
> > >>    10 min)
> > >>    5. (1~2 open slots for other presentations for 10 min x 1-2)
> > >>    6. Discussions and questions; do we want to host a special issue
> > >>    etc.. (10 min)
> > >>
> > >> I invite you to present your idea/question/quests/data etc. (for
> > example,
> > >> what can we do with > 170 researchers?) Please let me know by
> Thursday.
> > If
> > >> more than 3 requests, we may plan the second meeting subsequently.
> > >>
> > >> This announcement is sent via BCC to 137 participants who registered
> > >> their email address in the Google Docs spreadsheet (the registration
> is
> > >> still open)
> > >>
> > >>
> >
> https://urldefense.com/v3/__https://docs.google.com/spreadsheets/d/1vXEp1vlNdI7gVFLMuToOoIxWgABLtykQ2Wh1ElM09X0/edit?gid=0*gid=0__;Iw!!Mih3wA!DVWV5gw0Xp6N6ZzjJMTkDVILQiFQGgKaShaGnEQOnaine9wyUG5Vh-G-lj931eN96xCCF_KiSwj-_aUL4N3H5Rob_P4$
> > >> Separate Zoom invitation was sent as well. Looking forward to seeing
> > you.
> > >>
> > >> If you want to have a separate meeting at a different time, please let
> > me
> > >> know. If there are more than 3-4 participants, I'd be happy to
> organize
> > it.
> > >>
> > >> Makoto
> > >>
> > >
> > _______________________________________________
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