Alina Studenova
@studenova.bsky.social
PhD candidate, MPI CBS, MPSCog,
brain oscillations, cortical microstructure
https://alinastudenova.com/
brain oscillations, cortical microstructure
https://alinastudenova.com/
I use ICA for "source" extraction. For some participants, it works well, while for others, it miserably fails. Here, I tried to obtain the right and left M1/S1.
#brainmovies
#brainmovies
November 21, 2025 at 2:37 PM
I use ICA for "source" extraction. For some participants, it works well, while for others, it miserably fails. Here, I tried to obtain the right and left M1/S1.
#brainmovies
#brainmovies
Recently, I was playing with extracting brain activity using ICA (I know that some use SSD, but I use ICA).
Here's one example from the dataset with somatosensory stimulation. There are several components over the right somato-motor area (where the brain responds to stimulation).🧐
#brainmovie
Here's one example from the dataset with somatosensory stimulation. There are several components over the right somato-motor area (where the brain responds to stimulation).🧐
#brainmovie
November 7, 2025 at 1:34 PM
Recently, I was playing with extracting brain activity using ICA (I know that some use SSD, but I use ICA).
Here's one example from the dataset with somatosensory stimulation. There are several components over the right somato-motor area (where the brain responds to stimulation).🧐
#brainmovie
Here's one example from the dataset with somatosensory stimulation. There are several components over the right somato-motor area (where the brain responds to stimulation).🧐
#brainmovie
Second day at the Brain Quantum Imaging symposium: Ole Jensen about reading.
Two interesting things: 1) when reading, alpha rhythm power remains strong (not stronger than resting but still there); 2) alpha may be involved in visuomotor coordination.🤔
Two interesting things: 1) when reading, alpha rhythm power remains strong (not stronger than resting but still there); 2) alpha may be involved in visuomotor coordination.🤔
October 22, 2025 at 9:40 AM
Second day at the Brain Quantum Imaging symposium: Ole Jensen about reading.
Two interesting things: 1) when reading, alpha rhythm power remains strong (not stronger than resting but still there); 2) alpha may be involved in visuomotor coordination.🤔
Two interesting things: 1) when reading, alpha rhythm power remains strong (not stronger than resting but still there); 2) alpha may be involved in visuomotor coordination.🤔
Today I'm at Brain Quantum Imaging symposium in Berlin. Learning a lot about optically pumped magnetometers (OPMs). Many interesting talks!
One highlight is Saskia Helbling on whether we can infer laminar origin of signals with OPMs. Answer: there are many things to consider.
doi.org/10.1162/imag...
One highlight is Saskia Helbling on whether we can infer laminar origin of signals with OPMs. Answer: there are many things to consider.
doi.org/10.1162/imag...
October 21, 2025 at 10:17 AM
Today I'm at Brain Quantum Imaging symposium in Berlin. Learning a lot about optically pumped magnetometers (OPMs). Many interesting talks!
One highlight is Saskia Helbling on whether we can infer laminar origin of signals with OPMs. Answer: there are many things to consider.
doi.org/10.1162/imag...
One highlight is Saskia Helbling on whether we can infer laminar origin of signals with OPMs. Answer: there are many things to consider.
doi.org/10.1162/imag...
Nick (@willenjoy.bsky.social) is obsessed with signal-to-noise ratio (SNR). And for good reason! It could explain many results. Our simulation toolbox meegsim enables setting up SNR of individual sources as well as SNR of all signal sources with respect to all noise sources.
meegsim.readthedocs.io
meegsim.readthedocs.io
October 17, 2025 at 1:00 PM
Nick (@willenjoy.bsky.social) is obsessed with signal-to-noise ratio (SNR). And for good reason! It could explain many results. Our simulation toolbox meegsim enables setting up SNR of individual sources as well as SNR of all signal sources with respect to all noise sources.
meegsim.readthedocs.io
meegsim.readthedocs.io
We (I and @willenjoy.bsky.social) created a toolbox for simulations of EEG/MEG because we needed to simulate data. Our initial aim was to simulate connectivity. For this short clip, I simulated two sources with phase connectivity using our toolbox.
#brainmovie
meegsim.readthedocs.io/en/stable/in...
#brainmovie
meegsim.readthedocs.io/en/stable/in...
October 3, 2025 at 1:00 PM
We (I and @willenjoy.bsky.social) created a toolbox for simulations of EEG/MEG because we needed to simulate data. Our initial aim was to simulate connectivity. For this short clip, I simulated two sources with phase connectivity using our toolbox.
#brainmovie
meegsim.readthedocs.io/en/stable/in...
#brainmovie
meegsim.readthedocs.io/en/stable/in...
Simulations are fun! Especially with the right tools😉.
@willenjoy.bsky.social and I (with support from Mina Jamshidi) made a toolbox for simulating EEG/MEG data
meegsim.readthedocs.io
I put together a quick simulation using it for this short clip. Took me 10 minutes (no, really!)
#brainmovies
@willenjoy.bsky.social and I (with support from Mina Jamshidi) made a toolbox for simulating EEG/MEG data
meegsim.readthedocs.io
I put together a quick simulation using it for this short clip. Took me 10 minutes (no, really!)
#brainmovies
September 26, 2025 at 2:10 PM
Simulations are fun! Especially with the right tools😉.
@willenjoy.bsky.social and I (with support from Mina Jamshidi) made a toolbox for simulating EEG/MEG data
meegsim.readthedocs.io
I put together a quick simulation using it for this short clip. Took me 10 minutes (no, really!)
#brainmovies
@willenjoy.bsky.social and I (with support from Mina Jamshidi) made a toolbox for simulating EEG/MEG data
meegsim.readthedocs.io
I put together a quick simulation using it for this short clip. Took me 10 minutes (no, really!)
#brainmovies
Highlight of the day is a poster.
Have you ever looked for a sock in a pile of socks? You may have a full template or a partial (only pattern). You will be quicker if you have a full template but also when other socks look different. Soon to be published by Norman www.uni-leipzig.de/personenprof...
Have you ever looked for a sock in a pile of socks? You may have a full template or a partial (only pattern). You will be quicker if you have a full template but also when other socks look different. Soon to be published by Norman www.uni-leipzig.de/personenprof...
September 19, 2025 at 3:43 PM
Highlight of the day is a poster.
Have you ever looked for a sock in a pile of socks? You may have a full template or a partial (only pattern). You will be quicker if you have a full template but also when other socks look different. Soon to be published by Norman www.uni-leipzig.de/personenprof...
Have you ever looked for a sock in a pile of socks? You may have a full template or a partial (only pattern). You will be quicker if you have a full template but also when other socks look different. Soon to be published by Norman www.uni-leipzig.de/personenprof...
Today's keynote at #ICON2025 is by Marta Garrido about blindsight. Eye-opening for me was that blindsight is not one unitary phenomenon. There are motion blindsight and emotional blindsight, and different pathways are involved in each type.
September 18, 2025 at 1:53 PM
Today's keynote at #ICON2025 is by Marta Garrido about blindsight. Eye-opening for me was that blindsight is not one unitary phenomenon. There are motion blindsight and emotional blindsight, and different pathways are involved in each type.
The keynote for today at #ICON2025 is Uta Noppeney on the binding problem, which is how the brain understands if sensory signals come from a common cause.
Great talk and v. interesting topic👏
Great talk and v. interesting topic👏
September 16, 2025 at 1:34 PM
The keynote for today at #ICON2025 is Uta Noppeney on the binding problem, which is how the brain understands if sensory signals come from a common cause.
Great talk and v. interesting topic👏
Great talk and v. interesting topic👏
And here's the brain response to a very weak stimulus that participants could not have felt. But they said they did. What were they thinking? #brainactivitymovie
(there is a little slowdown before and after stimulus onset that is for presentation purposes; there is no slowdown in brain activity😆)
(there is a little slowdown before and after stimulus onset that is for presentation purposes; there is no slowdown in brain activity😆)
August 29, 2025 at 1:22 PM
And here's the brain response to a very weak stimulus that participants could not have felt. But they said they did. What were they thinking? #brainactivitymovie
(there is a little slowdown before and after stimulus onset that is for presentation purposes; there is no slowdown in brain activity😆)
(there is a little slowdown before and after stimulus onset that is for presentation purposes; there is no slowdown in brain activity😆)
Do you want to simulate EEG/MEG but don't know where to start? Don't start with ChatGPT, start with *pip install meegsim*.
We (me and @willenjoy.bsky.social) have just released v.0.0.2. Our toolbox generates EEG/MEG using template waveforms with ground truth source activity.
meegsim.readthedocs.io
We (me and @willenjoy.bsky.social) have just released v.0.0.2. Our toolbox generates EEG/MEG using template waveforms with ground truth source activity.
meegsim.readthedocs.io
August 26, 2025 at 9:05 AM
Do you want to simulate EEG/MEG but don't know where to start? Don't start with ChatGPT, start with *pip install meegsim*.
We (me and @willenjoy.bsky.social) have just released v.0.0.2. Our toolbox generates EEG/MEG using template waveforms with ground truth source activity.
meegsim.readthedocs.io
We (me and @willenjoy.bsky.social) have just released v.0.0.2. Our toolbox generates EEG/MEG using template waveforms with ground truth source activity.
meegsim.readthedocs.io
Here's the brain response to a clearly detectable electrical stimulus. However, the participant said that they didn't feel it. How come?
The topography is very similar to an undetectable stimulus. Maybe, they were telling the truth...
#brainactivitymovie
The topography is very similar to an undetectable stimulus. Maybe, they were telling the truth...
#brainactivitymovie
August 8, 2025 at 2:55 PM
Here's the brain response to a clearly detectable electrical stimulus. However, the participant said that they didn't feel it. How come?
The topography is very similar to an undetectable stimulus. Maybe, they were telling the truth...
#brainactivitymovie
The topography is very similar to an undetectable stimulus. Maybe, they were telling the truth...
#brainactivitymovie
Here's brain response in MEG to a stimulation of left median nerve. When median nerve is electrically stimulated, you feel tingling in the thumb, and the thumb may twitch. The brain response shows clear lateralization in the early stages. The stimulus here was supra-threshold.⚡
#brainactivitymovie
#brainactivitymovie
July 25, 2025 at 9:25 AM
Here's brain response in MEG to a stimulation of left median nerve. When median nerve is electrically stimulated, you feel tingling in the thumb, and the thumb may twitch. The brain response shows clear lateralization in the early stages. The stimulus here was supra-threshold.⚡
#brainactivitymovie
#brainactivitymovie
Here's the brain's response to electrical stimulus that was of such a small intensity that it is highly unlikely that participants had detected it. And participants confirmed that they didn't feel the stimulation. Time 0 s is the stimulus presentation. #brainactivitymovie
July 11, 2025 at 11:56 AM
Here's the brain's response to electrical stimulus that was of such a small intensity that it is highly unlikely that participants had detected it. And participants confirmed that they didn't feel the stimulation. Time 0 s is the stimulus presentation. #brainactivitymovie
Here's the brain's response to electrical stimulus applied to a left index finger in EEG. Time 0 s is the stimulus presentation.
The activity before 0 is also structured. Possibly, participants were expecting the stimulus to arrive.
#brainactivitymovie
The activity before 0 is also structured. Possibly, participants were expecting the stimulus to arrive.
#brainactivitymovie
June 27, 2025 at 11:43 AM
Here's the brain's response to electrical stimulus applied to a left index finger in EEG. Time 0 s is the stimulus presentation.
The activity before 0 is also structured. Possibly, participants were expecting the stimulus to arrive.
#brainactivitymovie
The activity before 0 is also structured. Possibly, participants were expecting the stimulus to arrive.
#brainactivitymovie
Here's brain response to simple auditory tone in MEG (magnetometers). Time 0 s is the tone.
The paradigm was passive, no response was requested from the participant. "Just" perception.
#brainactivitymovie
The paradigm was passive, no response was requested from the participant. "Just" perception.
#brainactivitymovie
June 13, 2025 at 1:21 PM
Here's brain response to simple auditory tone in MEG (magnetometers). Time 0 s is the tone.
The paradigm was passive, no response was requested from the participant. "Just" perception.
#brainactivitymovie
The paradigm was passive, no response was requested from the participant. "Just" perception.
#brainactivitymovie
Here's MEG (magnetometers) signal evolution over time and space before the button press. Time 0 s is the button press.
It is similar and yet different from EEG.
#brainactivitymovie
It is similar and yet different from EEG.
#brainactivitymovie
May 30, 2025 at 1:19 PM
Here's MEG (magnetometers) signal evolution over time and space before the button press. Time 0 s is the button press.
It is similar and yet different from EEG.
#brainactivitymovie
It is similar and yet different from EEG.
#brainactivitymovie
Here's EEG signal evolution over time and space before the button press.
Time 0 s is the button press. Blue colors mean that EEG amplitude is negative. #brainactivitymovie
Time 0 s is the button press. Blue colors mean that EEG amplitude is negative. #brainactivitymovie
May 14, 2025 at 2:35 PM
Here's EEG signal evolution over time and space before the button press.
Time 0 s is the button press. Blue colors mean that EEG amplitude is negative. #brainactivitymovie
Time 0 s is the button press. Blue colors mean that EEG amplitude is negative. #brainactivitymovie