Arshiya Sangchooli (He/They)

22 years of Brain Science: what CoSyNe tells us about the evolution of Neuroscience Tracking the intellectual DNA of Computational and Systems Neuroscience through its flagship meeting

I tracked every keyword in 22 years of Cosyne abstracts to map how computational neuroscience evolved — from Bayesian brains to neural manifolds to LLMs — and where it's heading next.

Neural Tuning for Ordinal Processing: Convergent Patterns in Human Brains and Artificial Networks Processing ordinality, i.e., the rank of an item in a series such as 1st, 2nd, 3rd, etc., is a fundamental skill shared by humans and animals. While humans often use symbolic sequences like numbers or...

Neural Tuning for Ordinal Processing: Convergent Patterns in Human Brains and Artificial Networks
www.jneurosci.org/content/46/9...
#neuroscience

source: Kaishi Hen, 1772. https://publicdomainreview.org/collection/kaishi-hen-an-18th-century-japanese-anatomical-atlas/

woodcut illustration of the brain. 🧶

artist: Aoki Shukuya
book: Kaishi Hen, anatomical atlas published in Kyoto in 1772.

New paper hot off the (pre-)press! We dig into the evolutionary origins of neural computations for behavioral control across mice, monkeys, and humans: www.biorxiv.org/content/10.6....

As our lab's first foray into comparative analysis of neural dynamics, I’m super excited about this work! 1/18

today's #rstats package of the day 🏆 is pwrss which made it very easy to compute the power of a difference between correlations

cran.r-project.org/web/packages...

Signatures proposed to index perceptual effects emerge in a purely cognitive task - Psychonomic Bulletin & Review A central question in many studies on perception and consciousness is whether the effects of a given manipulation are perceptual or cognitive. Typically, studies seek to find evidence that the raw sen...

New paper from the lab in which we test whether DDM and confidence distributions can be used to distinguish between perceptual and decisional effects. We show that putative signatures of perceptual effects emerge in a purely cognitive task.

link.springer.com/article/10.3...

I couldn't find a tool to plot different #neuroimaging data in one consistent style, so I made one! Meet yabplot (yet another brain plot) - a #Python package for (sub)cortex & tracts.🧠
- Simple API
- Built-in atlases
- Custom atlas support
🔗 github.com/teanijarv/ya... (drop a ⭐️!)

This is what’s happening. I’m terrified and so, very tired.

Great new paper led by @bringmannlaura.bsky.social, highlight the need to collect qualitative data in ESM / EMA research.

#PsychSciSky 🧪

www.nature.com/articles/s44...

How dynamics arise from the structure is my biggest interest. In this study, we started with a small step and asked how structure constrains dynamics. Spoiler: would that it were so simple… (1/6)

New paper in Imaging Neuroscience by Leon von Haugwitz, Edmund Wascher, and Mauro F. Larra:

Cardiac phase modulates behavior and response related lateralization in visual spatial conflicts during change detection

doi.org/10.1162/IMAG...

Today I am excited to introduce respyra - an open-source Python toolbox for respiratory tracking experiments in interoception research!

Now on PyPI (pip install respyra) with a preprint on PsyArXiv:
osf.io/preprints/ps...

GitHub: github.com/embodied-com...

𝗪𝗵𝗮𝘁 𝗶𝘀 𝗰𝗼𝗺𝗽𝘂𝘁𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗱𝘆𝗻𝗮𝗺𝗶𝗰𝗮𝗹 𝘀𝘆𝘀𝘁𝗲𝗺𝘀?
Interesting paper tackling this difficult question.
Answer (in part): it's complicated!
The same fixed system can be interpreted as implementing many (even infinitely many) computations depending on the chosen decoding map.
doi.org/10.1088/2632...

New paper in Imaging Neuroscience by Yingzhe Li, Romy Lorenz, and Guang Ouyang:

Behavioral variability and neural cross-frequency coupling distinguish working memory maintenance from manipulation

doi.org/10.1162/IMAG...

Exploring the Role of the Rich Club in Network Control of Neurocognitive States Using a network control theoretical framework, we found that the brain's rich club does not optimally control dynamics of the brain. Instead, size-matched sets of random peripheral regions had a sign...

🚨 New paper from @apodschun.bsky.social (with Sebastian Markett, Urs Braun, and myself)

Exploring the Role of the Rich Club in Network Control of Neurocognitive States

onlinelibrary.wiley.com/doi/10.1002/...

Episode #38 in #TheoreticalNeurosciencePodcast: On extracting spiking network models from experiments - with Richard Gao @rdgao.bsky.social

theoreticalneuroscience.no/thn38

How to fit spiking network models to experimental data when there is no unique parameter set giving the best fit.

This is what’s happening. I’m terrified and so, very tired.

Nautilus dreams [DEMO] by octopily A GBStudio experiment exploring town!

Aaaand it's out! After the past couple of months I'm really excited to show what I've made on and off, and hope you enjoy it too. I'll be working on making this a full game while I study, but, admittedly, have no idea when that'll be!

Follow me here to keep up <3

octopily.itch.io/nautilus-dre...

Graphs are maximally expressive for higher-order interactions We demonstrate that graph-based models are fully capable of representing higher-order interactions, and have a long history of being used for precisely this purpose. This stands in contrast to a commo...

New on the arxiv:

“Graphs are maximally expressive for higher-order interactions”

arxiv.org/abs/2602.16937

We clarify central misconceptions in the recent literature on "higher-order networks".

w/ @piratepeel.bsky.social , @manlius.bsky.social, and @thilogross.bsky.social

Explainer 🧵: 1/N

Full dopamine coding of basic economic subjective value: Utility and weighted probability Behavioral choices of uncertain rewards suggest that agents construct subjective reward value by combining the basic value components of utility and w…

I like to think about brain areas as well behaved (b/c they do what you tell them too, like V1) vs naughty (b/c 🤷, like PFC).

I'm delighted to learn that midbrain dopamine neurons are well behaved machines that convert objective value into subjective value.

www.sciencedirect.com/science/arti...

underappreciated concept 🙂

for more dipoles: neighboring dipoles have different orientations & can have different stimulus preferences. so even though topographies look similar, subtle differences remain. maybe that's why it is possible to decode information from relatively few sensors?

Next Stops for OHBM: Toronto, Canada in 2027 and Yokohama, Japan in 2028 — OHBM Communications We are thrilled to announce the locations for our next two upcoming Annual Meetings! The 2027 OHBM Annual Meeting will be held in Toronto, Canada, followed by the 2028 OHBM Annual Meeting in Yokohama,...

Future @ohbmofficial.bsky.social meeting dates just annouced:

* 2027 - Toronto, Canada
* 2028 - Yokohama, Japan

www.ohbm-com.com/blog/futurem...

👀

A precise atlas of the human subcortex | bioRxiv www.biorxiv.org/content/10.6...

𝗧𝗿𝗮𝘃𝗲𝗹𝗶𝗻𝗴 𝘄𝗮𝘃𝗲𝘀 𝗶𝗻 𝘁𝗵𝗲 𝗯𝗿𝗮𝗶𝗻
"Cortical traveling waves in time and space: Physics, physiology, and psychology" is going to the top of the list!
doi.org/10.1016/j.ne...
#neuroskyence

New paper in Imaging Neuroscience by Ting Gong and Anastasia Yendiki:

Microstructure.jl: A Julia package for probabilistic microstructure model fitting with diffusion MRI

doi.org/10.1162/IMAG...

At @elife.bsky.social you can now include explainer videos with every figure. Like going to a seminar while you engage with the paper. First example here elifesciences.org/articles/106...

Click the arrows next to each figure to get a video of @mathiassablemeyer.bsky.social explaining it for you!

a husky puppy is laying on the floor with its tongue out and wearing a blue collar . ALT: a husky puppy is laying on the floor with its tongue out and wearing a blue collar .

Here’s a thought that might make you tilt your head in curiosity: With every movement of your eyes, head, or body, the visual input to your eyes shifts! Nevertheless, it doesn't feel like the world does suddenly tilts sideways whenever you tilt your head. How can this be? TWEEPRINT ALERT! 🚨🧵 1/n

The best part though: Working with amazing graduate student *Maria Servetnik* from our lab, who did all the heavy lifting. Not to mention lots of inspiration & input from @mjwolff.bsky.social. I'm am one very lucky PI 😊 n/n

Methodological flaw may upend network mapping tool The lesion network mapping method, used to identify disease-specific brain networks for clinical stimulation, produces a nearly identical network map for any given condition, according to a new study.

Thanks to The Transmitter for reaching out to me for comments on this methodological challenge to lesion network mapping. Scientific debate is critical to methodological advancement - so let the debate begin!

www.thetransmitter.org/brain-imagin...

Methodological flaw may upend network mapping tool The lesion network mapping method, used to identify disease-specific brain networks for clinical stimulation, produces a nearly identical network map for any given condition, according to a new study.

More than 200 published studies and at least seven ongoing clinical trials rely on potentially faulty brain network maps, according to a study published yesterday.

By @avaskham.bsky.social

#neuroskyence

www.thetransmitter.org/brain-imagin...