Natalie Schaworonkow
@nschawor.bsky.social
investigating electric waves in the brain,
thinking about visualization, interfaces,
art & beauty with computers.
nschawor.github.io
Frankfurt am Main, Germany
thinking about visualization, interfaces,
art & beauty with computers.
nschawor.github.io
Frankfurt am Main, Germany
"Electrodes are held on the scalp of the patient by an arrangement of rubber and whalebone bars tied under the chin (fig. 1). A most suitable cap is one made for setting waves in hair. It is not necessary to shave the scalp, though the examination is easier if the hair is short and recently washed."
November 12, 2025 at 12:42 PM
"Electrodes are held on the scalp of the patient by an arrangement of rubber and whalebone bars tied under the chin (fig. 1). A most suitable cap is one made for setting waves in hair. It is not necessary to shave the scalp, though the examination is easier if the hair is short and recently washed."
auditory tau-rhythm with a cool waveform, oscillating at 10 Hz, recorded with intracranial electrodes. 🧠〰️🙂
November 6, 2025 at 1:29 PM
auditory tau-rhythm with a cool waveform, oscillating at 10 Hz, recorded with intracranial electrodes. 🧠〰️🙂
also great: extremely motivated + nice participants! there also were tracks for: FieldTrip + EEGLAB + Brainstorm, the other toolboxes for MEG/EEG, with instructors interacting well, no animosities, great community.
all orchestrated by great team behind @cuttingeeg.bsky.social ❤️🙂 #PracticalMEEG2025
all orchestrated by great team behind @cuttingeeg.bsky.social ❤️🙂 #PracticalMEEG2025
November 3, 2025 at 8:06 AM
also great: extremely motivated + nice participants! there also were tracks for: FieldTrip + EEGLAB + Brainstorm, the other toolboxes for MEG/EEG, with instructors interacting well, no animosities, great community.
all orchestrated by great team behind @cuttingeeg.bsky.social ❤️🙂 #PracticalMEEG2025
all orchestrated by great team behind @cuttingeeg.bsky.social ❤️🙂 #PracticalMEEG2025
the live document was super interesting to run in a course of this size. participants were asking questions in it and they were either answered in the document (by a trainEEr) or on stage depending on how general the question was. idea from my co-teacher Marijn van Vliet, who used the tool before. 🙂
November 3, 2025 at 7:50 AM
the live document was super interesting to run in a course of this size. participants were asking questions in it and they were either answered in the document (by a trainEEr) or on stage depending on how general the question was. idea from my co-teacher Marijn van Vliet, who used the tool before. 🙂
made a mini-game for events: find pairs of matching brains, the Allen mouse brain & a macaque brain are smuggled in to make it easier. meanwhile, we can talk about brain structure, cortical folding, twins, individual differences, & etc. 🙂💗🧠
October 20, 2025 at 2:37 PM
made a mini-game for events: find pairs of matching brains, the Allen mouse brain & a macaque brain are smuggled in to make it easier. meanwhile, we can talk about brain structure, cortical folding, twins, individual differences, & etc. 🙂💗🧠
ok, imagine you have an oscillation that is not symmetric around 0 (small direct current shift) with some amplitude modulation, for instance with 1/f-dynamics.
➡️ then these 1/f-dynamics will show up in low frequency part of spectrum (red); in addition to around oscillation peak (yellow).
➡️ then these 1/f-dynamics will show up in low frequency part of spectrum (red); in addition to around oscillation peak (yellow).
October 16, 2025 at 1:58 PM
ok, imagine you have an oscillation that is not symmetric around 0 (small direct current shift) with some amplitude modulation, for instance with 1/f-dynamics.
➡️ then these 1/f-dynamics will show up in low frequency part of spectrum (red); in addition to around oscillation peak (yellow).
➡️ then these 1/f-dynamics will show up in low frequency part of spectrum (red); in addition to around oscillation peak (yellow).
otherwise I have been mostly watching the color of 3 shapes (iykyk 😬). but lots of cool oscillatory bursts, now we need to look at the data during the annual MEG service.
& already missing the balcony summer!
& already missing the balcony summer!
September 15, 2025 at 3:34 PM
otherwise I have been mostly watching the color of 3 shapes (iykyk 😬). but lots of cool oscillatory bursts, now we need to look at the data during the annual MEG service.
& already missing the balcony summer!
& already missing the balcony summer!
so I think the results are much in line with work in adults and not contrasting with it.
here is my own figure showing this infant oscillation frequency in 'resting-state' data (with age in days 🙃). it's great to see more functional type data, but I think we have to agree more on terminology.
here is my own figure showing this infant oscillation frequency in 'resting-state' data (with age in days 🙃). it's great to see more functional type data, but I think we have to agree more on terminology.
September 15, 2025 at 2:49 PM
so I think the results are much in line with work in adults and not contrasting with it.
here is my own figure showing this infant oscillation frequency in 'resting-state' data (with age in days 🙃). it's great to see more functional type data, but I think we have to agree more on terminology.
here is my own figure showing this infant oscillation frequency in 'resting-state' data (with age in days 🙃). it's great to see more functional type data, but I think we have to agree more on terminology.
back from summer break, back to printing little brains
(& some real work too 🙂)
(& some real work too 🙂)
August 20, 2025 at 10:14 AM
back from summer break, back to printing little brains
(& some real work too 🙂)
(& some real work too 🙂)
a seemingly general electrophysiological phenomenon: once you have to process stimuli, low-frequency rhythms disappear, spectrum becomes flatter & sometimes an increase in broadband gamma activity.
we also found this for visual memory encoding in #iEEG data: doi.org/10.1523/JNEUROSCI.2404-24.2025
we also found this for visual memory encoding in #iEEG data: doi.org/10.1523/JNEUROSCI.2404-24.2025
July 8, 2025 at 2:17 PM
a seemingly general electrophysiological phenomenon: once you have to process stimuli, low-frequency rhythms disappear, spectrum becomes flatter & sometimes an increase in broadband gamma activity.
we also found this for visual memory encoding in #iEEG data: doi.org/10.1523/JNEUROSCI.2404-24.2025
we also found this for visual memory encoding in #iEEG data: doi.org/10.1523/JNEUROSCI.2404-24.2025
read the news about 17yr old Hannah Cairo who found a counterexample to a conjecture from harmonic analysis. love the playful presentation slide style. 🙂💕💚
#VisualizationInspo
#VisualizationInspo
July 8, 2025 at 8:37 AM
read the news about 17yr old Hannah Cairo who found a counterexample to a conjecture from harmonic analysis. love the playful presentation slide style. 🙂💕💚
#VisualizationInspo
#VisualizationInspo
yes have been there, especially for large prints (see image). but now I have dental instruments, which are excellent for doing this, highly recommend (sulci are deep 🙃) and it's much better with the 'tentacle' support structure option (Bambu printer), so will try the en bloc way again. 🙂
July 3, 2025 at 2:01 PM
yes have been there, especially for large prints (see image). but now I have dental instruments, which are excellent for doing this, highly recommend (sulci are deep 🙃) and it's much better with the 'tentacle' support structure option (Bambu printer), so will try the en bloc way again. 🙂
the brain was split into the two hemispheres and laid flat onto the medial surface, so there are some ugly parts in the middle.
my favorite technical staff made the connection knobs, but this takes a bit of time, so the next brain will be printed en block, let's see how this goes. 🙂
my favorite technical staff made the connection knobs, but this takes a bit of time, so the next brain will be printed en block, let's see how this goes. 🙂
July 3, 2025 at 1:40 PM
the brain was split into the two hemispheres and laid flat onto the medial surface, so there are some ugly parts in the middle.
my favorite technical staff made the connection knobs, but this takes a bit of time, so the next brain will be printed en block, let's see how this goes. 🙂
my favorite technical staff made the connection knobs, but this takes a bit of time, so the next brain will be printed en block, let's see how this goes. 🙂
making little mini brains for internal participants (who I can not pay with money) for our current experiment, using the individual structural MRIs.
#ForbiddenBubbleGum 🙃
#ForbiddenBubbleGum 🙃
July 3, 2025 at 12:45 PM
making little mini brains for internal participants (who I can not pay with money) for our current experiment, using the individual structural MRIs.
#ForbiddenBubbleGum 🙃
#ForbiddenBubbleGum 🙃
colored it for fun. 🙃
several citations were given, but seemed wrong, I think this is the right one, couldn't find the article online, if somebody can:
Motokawa K. 1944, Japanese Journal of Medical Sciences: Biophysics. III, Volume 10(1).
several citations were given, but seemed wrong, I think this is the right one, couldn't find the article online, if somebody can:
Motokawa K. 1944, Japanese Journal of Medical Sciences: Biophysics. III, Volume 10(1).
July 1, 2025 at 7:27 PM
colored it for fun. 🙃
several citations were given, but seemed wrong, I think this is the right one, couldn't find the article online, if somebody can:
Motokawa K. 1944, Japanese Journal of Medical Sciences: Biophysics. III, Volume 10(1).
several citations were given, but seemed wrong, I think this is the right one, couldn't find the article online, if somebody can:
Motokawa K. 1944, Japanese Journal of Medical Sciences: Biophysics. III, Volume 10(1).
this figure from 1944 is cited as the first topoplot, from Koiti Motokawa. in an era where only handful of EEG channels across space were used, he measured the mean alpha amplitude for 90 points across the scalp. ❗
(compiling a presentation about the evolution of topoplots, cool stuff out there 🙂)
(compiling a presentation about the evolution of topoplots, cool stuff out there 🙂)
July 1, 2025 at 7:27 PM
this figure from 1944 is cited as the first topoplot, from Koiti Motokawa. in an era where only handful of EEG channels across space were used, he measured the mean alpha amplitude for 90 points across the scalp. ❗
(compiling a presentation about the evolution of topoplots, cool stuff out there 🙂)
(compiling a presentation about the evolution of topoplots, cool stuff out there 🙂)
so the easiest metric to start with is published papers per time unit in NeuroImage, definitely in decline, here from PubMed:
June 30, 2025 at 4:47 PM
so the easiest metric to start with is published papers per time unit in NeuroImage, definitely in decline, here from PubMed:
topoplots or vintage rugs? 🙃🌈
June 30, 2025 at 2:47 PM
topoplots or vintage rugs? 🙃🌈
happy that our article about mu & alpha rhythm waveform shape in development is now finally out in the open: doi.org/10.1162/jocn...
oscillation frequency changes across development (one of the most robust findings in the oscillation world). in this work, we also look at waveform shape changes.
oscillation frequency changes across development (one of the most robust findings in the oscillation world). in this work, we also look at waveform shape changes.
June 23, 2025 at 3:36 PM
happy that our article about mu & alpha rhythm waveform shape in development is now finally out in the open: doi.org/10.1162/jocn...
oscillation frequency changes across development (one of the most robust findings in the oscillation world). in this work, we also look at waveform shape changes.
oscillation frequency changes across development (one of the most robust findings in the oscillation world). in this work, we also look at waveform shape changes.
structure differences result in electrophysiological activity differences. super tempting to look for principles preserved across species, e.g: oscillation frequency: pubmed.ncbi.nlm.nih.gov/24183025 nevertheless, I think the story is not so simple... still want to make an updated graph eventually.
May 7, 2025 at 8:40 AM
structure differences result in electrophysiological activity differences. super tempting to look for principles preserved across species, e.g: oscillation frequency: pubmed.ncbi.nlm.nih.gov/24183025 nevertheless, I think the story is not so simple... still want to make an updated graph eventually.
chimpanzee brain (left) & mouse brain of the same size (~500 times the original volume, mutated mega mouse 🙃). while there are similarities, there are also immediately observable differences, e.g. in the cortical folding or the giant olfactory bulb located toward the front for the mouse brain.
May 7, 2025 at 8:40 AM
chimpanzee brain (left) & mouse brain of the same size (~500 times the original volume, mutated mega mouse 🙃). while there are similarities, there are also immediately observable differences, e.g. in the cortical folding or the giant olfactory bulb located toward the front for the mouse brain.
watching as the magical MEG machine boots 🙂
May 2, 2025 at 10:43 AM
watching as the magical MEG machine boots 🙂
"Key attributes of successful research institutes" journals.plos.org/plosbiology/... – well-written perspective on what makes research institutes successful. having a lot of resources is not sufficient, if there is no positive research culture or good governance structure.
February 11, 2025 at 8:55 AM
"Key attributes of successful research institutes" journals.plos.org/plosbiology/... – well-written perspective on what makes research institutes successful. having a lot of resources is not sufficient, if there is no positive research culture or good governance structure.
the template brain is called ChimpYerkes29, taken from the BALSA database: www.sciencedirect.com/science/arti...
I feel the deviation from the human brain is most visible, when you rotate a bit and look at the visual cortex, much less folding. macaque brain for scale!
I feel the deviation from the human brain is most visible, when you rotate a bit and look at the visual cortex, much less folding. macaque brain for scale!
February 5, 2025 at 10:05 AM
the template brain is called ChimpYerkes29, taken from the BALSA database: www.sciencedirect.com/science/arti...
I feel the deviation from the human brain is most visible, when you rotate a bit and look at the visual cortex, much less folding. macaque brain for scale!
I feel the deviation from the human brain is most visible, when you rotate a bit and look at the visual cortex, much less folding. macaque brain for scale!