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Subham Dey

@subhamjadavpur.bsky.social

Control Systems Engineer. Visiting fellow with NIMH.

442 Followers  |  3,657 Following  |  18 Posts  |  Joined: 21.11.2024
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Posts by Subham Dey (@subhamjadavpur.bsky.social)

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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/...

27.02.2026 18:39 β€” πŸ‘ 20    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
Will's Wild Website

Cosyne Viewing Parties

Visas, costs, care responsibilities, and environmental concerns all limit Cosyne attendance. Luckily, the talks are livestreamed; but watching alone is the high road to an aneurism. Hence: viewing parties! Gather regionally to watch Cosyne talks! More info: shorturl.at/3DHZX.

14.02.2026 15:45 β€” πŸ‘ 15    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
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New paper alert! 🚨

We found that the brain's compass is remarkably stable at two scales

1️⃣ the system maintains its internal organization for weeks
2️⃣ It "remembers" its orientation for weeks, even after a single visit

This may be key to how the brain aligns its other maps.

Paper: rdcu.be/e3waP

11.02.2026 17:52 β€” πŸ‘ 197    πŸ” 68    πŸ’¬ 5    πŸ“Œ 7

@dpn-journal.bsky.social, why is it that papers are only accepted in Microsoft Word format in your esteemed journal? Most engineering journals @ieeexplore.ieee.org allow submitters to submit their paper as output of LaTeX document (each having their own LaTeX template)? Can you have a look at it?

11.02.2026 17:12 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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Parkinson’s disease as a somato-cognitive action network disorder - Nature The substantia nigra and all Parkinson’s disease deep-brain stimulation targets are selectively connected to the somato-cognitive action network rather than to effector-specific motor regions.

www.nature.com/articles/s41... the original research article ... no paywall

04.02.2026 20:19 β€” πŸ‘ 36    πŸ” 15    πŸ’¬ 0    πŸ“Œ 0
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Scientists May Have Found the True Source of Parkinson’s Disease A newly identified brain network may be the real driver of Parkinson’sβ€”and precisely targeting it just delivered a major boost in symptom relief.

Scientists May Have Found the True Source of Parkinson’s Disease
scitechdaily.com/scientists-m...

04.02.2026 22:17 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Love this. β€œSpontaneous” has always really meant β€œwe don’t know why X is happening”, a perspective tied to the dominance of structured task paradigms for studying cognition, behavior, and brain activity.

28.01.2026 20:19 β€” πŸ‘ 53    πŸ” 12    πŸ’¬ 1    πŸ“Œ 0

The supplementary videos for this preprint are fantastic. Some wild examples of decoding the animal's attentional focus and/or intent
www.biorxiv.org/content/10.6...

28.01.2026 14:04 β€” πŸ‘ 21    πŸ” 5    πŸ’¬ 0    πŸ“Œ 1
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Preprint alert!!! We recorded directly from the human ventral tegmental area (VTA), the principal source of cortical dopaminergic innervation, while patients performed an instrumental learning task. πŸ§΅πŸ‘‡

www.biorxiv.org/content/10.6...

28.01.2026 14:29 β€” πŸ‘ 51    πŸ” 18    πŸ’¬ 1    πŸ“Œ 0

Dynamical systems and control theory can make significant contributions to psychiatric disorders.

23.01.2026 19:01 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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...

16.01.2026 15:18 β€” πŸ‘ 28    πŸ” 18    πŸ’¬ 0    πŸ“Œ 2
A synaptic locus of song learning Learning by imitation is the foundation for verbal and musical expression, but its underlying neural basis remains obscure. A juvenile male zebra finch imitates the multisyllabic song of an adult tutor in a process that depends on a song-specialized cortico-basal ganglia circuit, affording a powerful system to identify the synaptic substrates of imitative motor learning. Plasticity at a particular set of cortico-basal ganglia synapses is hypothesized to drive rapid learning-related changes in song before these changes are subsequently consolidated in downstream circuits. Nevertheless, this hypothesis is untested and the synaptic locus where learning initially occurs is unknown. By combining a computational framework to quantify song learning with synapse-specific optogenetic and chemogenetic manipulations within and directly downstream of the cortico-basal ganglia circuit, we identified the specific cortico-basal ganglia synapses that drive the acquisition and expression of rapid vocal changes during juvenile song learning and characterized the hours-long timescale over which these changes consolidate. Furthermore, transiently augmenting postsynaptic activity in the basal ganglia briefly accelerates learning rates and persistently alters song, demonstrating a direct link between basal ganglia activity and rapid learning. These results localize the specific cortico-basal ganglia synapses that enable a juvenile songbird to learn to sing and reveal the circuit logic and behavioral timescales of this imitative learning paradigm. ### Competing Interest Statement The authors have declared no competing interest. National Institutes of Health, K99 NS144525 (DCS), F32 MH132152 (DCS), F31 HD098772 (SB), R01 NS099288 (RM), RF1 NS118424 (RM and JP)

Where does learning through imitation happen in the brain?

In juvenile zebra finches, we pinpoint a synaptic locus of song learning in a cortico-basal ganglia circuit and leverage this localization to measure the timescale of consolidation and make birds learn faster! #neuroskyence (1/14)

21.01.2026 16:39 β€” πŸ‘ 71    πŸ” 26    πŸ’¬ 5    πŸ“Œ 7

Everyone knows the limitations of PCA, the distortions which it creates when doing dimensionality reduction. Yet people want to use it.

17.01.2026 15:25 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Brain implant lets man 'experience joy' for the first time in decades A device that has been likened to a pacemaker for the brain has given a man with severe depression great relief

A man who had severe depression for more than 30 years has "experienced joy" after undergoing bespoke brain stimulation.

02.09.2025 01:27 β€” πŸ‘ 11    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
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Why does life explore so few of the forms it could possibly take? Using fractal descriptors, this #scienceadvances paper shows that Earth’s biosphere clusters around simple shapes, reflecting deep evolutionary constraints. @artemyte.bsky.social @manlius.bsky.social www.science.org/doi/pdf/10.1...

11.01.2026 13:22 β€” πŸ‘ 229    πŸ” 76    πŸ’¬ 5    πŸ“Œ 6

Just wondering if the rodent species can be trained to perform a cooperative game theory task.

06.01.2026 02:02 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Sleep-dependent infraslow rhythms are evolutionarily conserved across reptiles and mammals Nature Neuroscience - Bergel et al. show that an infraslow rhythm connecting the brain and body during sleep is shared by lizards, mammals and birds, revealing an ancestral process and reshaping...

⚠️ New paper alert and what a way to end 2025! πŸŽ‰
Happy to share our story β€œSleep-dependent infraslow rhythms are evolutionarily conserved across reptiles and mammals.” published today in Nature Neuroscience.

Sleeping dragons 🦎 and functional ultrasound!
Read the full paper here: rdcu.be/eWJHb 1/8

29.12.2025 16:17 β€” πŸ‘ 101    πŸ” 37    πŸ’¬ 3    πŸ“Œ 2
2 people on a TV interview stage sitting across from each other with a coffee table in between. A monitor with the Arizona Horizon logo is partially obscured in the back.

2 people on a TV interview stage sitting across from each other with a coffee table in between. A monitor with the Arizona Horizon logo is partially obscured in the back.

The path to a healthier Arizona starts with a bold new vision for improving health and health care.

πŸ”— Watch @asumedicine.bsky.social Dean @lisanby.bsky.social on Arizona PBS "Arizona Horizon" to learn more about what ASU's new medical school could mean for Arizonans: lnkd.in/giHa7QtD

16.12.2025 22:53 β€” πŸ‘ 5    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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A theory of multi-task computation and task selection Neural activity during the performance of a stereotyped behavioral task is often described as low-dimensional, occupying only a limited region in the space of all firing-rate patterns. This region has...

1/X Excited to present this preprint on multi-tasking, with
@david-g-clark.bsky.social and Ashok Litwin-Kumar! Timely too, as β€œlow-D manifold” has been trending again. (If you read thru the end, we escape Flatland and return to the glorious high-D world we deserve.) www.biorxiv.org/content/10.6...

15.12.2025 19:41 β€” πŸ‘ 83    πŸ” 20    πŸ’¬ 1    πŸ“Œ 2

Can your AI beat a mouse? This is happening Sunday! robustforaging.github.io NeurIPS workshop 11 to 2 California time on Zoom!

@mbeyeler.bsky.social
@sinzlab.bsky.social
@ninamiolane.bsky.social
@crisniell.bsky.social
@mariusschneider.bsky.social
J. Canzano, Y. Hou, J. Peng, et al.

#NeurIPS2025

06.12.2025 23:09 β€” πŸ‘ 14    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0

Fascinating and ground breaking work. I don't think we've ever looked at sinle neuron activity in the human thalamus before.

27.11.2025 09:22 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
SIPLab

Please share! Going to #SfN and looking for a postdoc in human neuroscience? We're hiring! If you have a background in Psychology, Neuroscience, Biomedical Engineering, or related areas, come talk to us about joining our lab at Georgia Tech (siplab.gatech.edu). #neuroscience #PsychSciSky

11.11.2025 21:28 β€” πŸ‘ 15    πŸ” 13    πŸ’¬ 1    πŸ“Œ 2
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Neuroscience needs engineersβ€”for more reasons than you think Adopting an engineering mindset will help the field focus its research priorities.

Adopting an engineering mindset will help the field focus its research priorities, writes @timothyoleary.bsky.social.

#neuroskyence

www.thetransmitter.org/systems-neur...

10.11.2025 18:56 β€” πŸ‘ 38    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0
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Falling asleep follows a predictable bifurcation dynamic - Nature Neuroscience Li et al. propose a conceptual framework to study the phenomenon of falling asleep based on electroencephalogram data. They show that a tipping point marks the brain’s nonlinear wake-to-sleep transiti...

My co-authors have yet to move to Bluesky, so I'm pleased to announce our latest work has just been published in @nature.com Neuroscience. Amazing work led by Junheng Li, revealing that falling asleep follows a predictable bifurcation pattern #neuroskyence #sleep
www.nature.com/articles/s41...

28.10.2025 17:35 β€” πŸ‘ 138    πŸ” 37    πŸ’¬ 7    πŸ“Œ 3
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Positive affective contagion in bumble bees Affective contagion, a core component of empathy, has been widely characterized in social vertebrates but its existence in any invertebrate is unknown. Using a cognitive bias paradigm we demonstrate p...

Positive affective contagion in bumble bees

This is impressive research in Science Magazine, but the word 'affect' feels like a stretch of what that word implies. Affect-like seems more consistent, in the way Nicky Clayton has used 'epsiodic-memory-like' in corvids

www.science.org/doi/10.1126/...

24.10.2025 11:34 β€” πŸ‘ 18    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0
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Members of Congress can say they didn’t believe the data that said people would lose their healthcare, but real people are starting to experience the pain.

Ted Budd locked his door and refused to answer our calls today, but Moral Mondays will be back.

21.10.2025 00:55 β€” πŸ‘ 264    πŸ” 90    πŸ’¬ 3    πŸ“Œ 1

Without control theory there is no closed loop brain stimulation.

20.10.2025 18:14 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Does anodal tDCS over M1 really enhance motor sequence learning? A non-replication of earlier findings in a double-blind, pre-registered large-sample study in humans Background Transcranial direct current stimulation (tDCS) is one of the most widely used noninvasive neuromodulation methods. Despite its popularity, some recent studies highlighted issues about the r...

www.medrxiv.org/content/10.1... (People are trying to cure depression with tDCS, good luck then)

17.10.2025 02:13 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

There is a reason why variants of Kalman filter like Unscented Kalman Filter, Cubature Quadrature Kalman Filter exists in literature. Still you find the Kalman filter at big ticket neuroscience journal papers. It seems neither the people nor the reviewers care at all.

17.10.2025 02:12 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Out today at Neuron, our experiments show that frontal cortical representation of economic variables is jointly determined by spatial organization and downstream
connectivity of neurons, revealing a structured, multi-scale code for economic variables. www.cell.com/neuron/fullt...

16.10.2025 14:59 β€” πŸ‘ 98    πŸ” 27    πŸ’¬ 6    πŸ“Œ 0