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Nima Dehghani

@neurovium.bsky.social
2.1K followers 1K following 293 posts

Computational neuroscience, Physics of Complex Systems, Bio-Inspired Intelligence, Foundations of Physical Computing neurovium.science compneuro.mit.edu/home

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Nima Dehghani @neurovium.bsky.social · 4h
Shape is morphology without an internal state and a source term. That is the ice neuron. Excitability adds active cable. Field closure is the biophysical mélange in which the neuron writes part of the field that then acts back on it. That is the biological neuron. neurovium.science/posts/pblog-...
neurovium.science
The Silhouette Fallacy: Field closure, ephaptic coupling, and the physics of computation
Companion post to: Field closure, ice neurons, and when a dendrite is a motif Nima Dehghani arXiv 2026 DOI: https://arxiv.org/abs/2610.00184v1
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Nima Dehghani @neurovium.bsky.social · 4h
NeuroAI lesson caution about biomimetic geometry in NeuroAI: -A dendrite-inspired architecture can be useful. -A branched neuromorphic device can be useful. -A network can borrow the visual language But resemblance is not inheritance! Read here👇📜 neurovium.science/posts/pblog-...
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Nima Dehghani @neurovium.bsky.social · 03/10/2026
Have you ever thought "what Walden pond & Brains have in common?". The answer is "Neurons!" First it was just an amusement (the tweet is from Feb 2019). But in Feb 2020, something more interesting happened. I came across an amazing series of "Ice Neurons". Read here 👇 arxiv.org/abs/2610.001...
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Nima Dehghani @neurovium.bsky.social · 28/09/2026
Looking forward to this David @hardmaru.bsky.social
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Nima Dehghani @neurovium.bsky.social · 04/09/2026
Chapter 2: Neural Logic, Invariance, and the Retina---McCulloch and Pitts Book chapter from "NeuroAI: Theoretical Foundations of Dynamics, Learning and Computation in Brains, Minds, and Machines." arxiv.org/abs/2609.02183
arxiv.org
Neural Logic, Invariance, and the Retina---McCulloch and Pitts
This chapter reconstructs the McCulloch-Pitts program as a physics of neural computation rather than the familiar cartoon of a binary neuron. The 1943 logical calculus is developed in both directions:...
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Nima Dehghani @neurovium.bsky.social · 25/09/2026
Interesting approach in this piece by Adrien @apeyrache.bsky.social I think the lottery does provide a sense of "fair" but I really like the idea of "unmissable". Adrien, are you guys considering AI vetting? Some folks are livid seeing their grants rejected by UKRI that way.
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Nima Dehghani @neurovium.bsky.social · 25/09/2026
Mighty glias are like the dark side of the moon
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Nima Dehghani @neurovium.bsky.social · 23/09/2026
XJ Wang left ?!? What a loss for the US (and NYU) Everyday I get some news that a prominent scientist is leaving. The chaos of the science budget and downfall of the American science are spiralling down very fast. This is disheartening. www.eurekalert.org/news-release...
eurekalert.org
World-renowned computational neuroscientist professor Xiao-Jing Wang joins HKU as Chair Professor
The University of Hong Kong (HKU) announces the appointment of Professor Xiao-Jing Wang, a pioneer in theoretical and computational neuroscience, to its faculty as a Chair Professor. Professor Wang wi...
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Nima Dehghani @neurovium.bsky.social · 23/09/2026
Cool. Looking forward to reading this from Ben @bendfulcher.bsky.social
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Nima Dehghani @neurovium.bsky.social · 21/09/2026
56k submissions to ICLR These conferences are now 90% AI-written garbage. These ppl who submit AI papers to have a conference paper on resume (for job/position) have effectively turned that value that they are after to "0". Greed + AI slop -> a pile of rubbish x.com/denny_zhou/s...
x.com
Denny Zhou (@denny_zhou) on X
ICLR 2027 has received more submissions than all previous years (2013–2026) combined
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COSYNE @cosynemeeting.bsky.social · 11/09/2026
📢Have work to share with the computational and systems neuroscience community? Abstract submissions for #COSYNE2027 are now open. Deadline: 18 October 2026, 11:59 p.m. AoE Submit your abstract: www.cosyne.org/abstracts-su... #Neuroscience
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Nima Dehghani @neurovium.bsky.social · 04/09/2026
To listen to on the road to NYC Looking forward to this @dlevenstein.bsky.social @braininspired.bsky.social
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Nima Dehghani @neurovium.bsky.social · 04/09/2026
new paper! Connectomes, Dynamics, and the Algebra of Computation: Why “More Is Different” in Canonical Recurrent Motifs Here we use Krohn–Rhodes and holonomy decomposition to tease apart composition neurovium.science/posts/pblog-...
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Nima Dehghani @neurovium.bsky.social · 04/09/2026
Last paper of the summer: Q: what new computational structure appears when circuit motifs are composed? Read the answer here "More Is Different'' in Neural Circuits: Algebraic Emergence of Effective Theories in Canonical Recurrent Motifs of Biological Neuronal Networks arxiv.org/abs/2608.30231
arxiv.org
"More Is Different'' in Neural Circuits: Algebraic Emergence of Effective Theories in Canonical Recurrent Motifs of Biological Neuronal Networks
Canonical neural circuit motifs are usually described functionally: divisive normalization rescales population activity by a pooled signal, and winner-take-all competition selects one pattern through ...
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Nima Dehghani @neurovium.bsky.social · 04/09/2026
Chapters of the book dropping.... neurovium.science/books/NeuroAI/
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Nima Dehghani @neurovium.bsky.social · 04/09/2026
I will be giving a talk @kempnerinstitute.bsky.social "Learning Dynamics" workshop today. Enjoyed @suryaganguli.bsky.social talk and looking forward to see what @dileeplearning.bsky.social @tonyzador.bsky.social Leslie Valiant have to say kempnerinstitute.harvard.edu/learning-dyn...
kempnerinstitute.harvard.edu
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Nima Dehghani @neurovium.bsky.social · 29/08/2026
Ten years. Three fields. One long stare. A decade forging a unified framework across physics, computation & neuro.I’ve released a few pieces along the way — foundations of physical computing. Ten more theoretical papers done and coming. Just tightening the screws. Stay tuned — don’t blink.
static.klipy.com
ALT:
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Nima Dehghani @neurovium.bsky.social · 02/08/2026
The paper might be hard to penetrate for some that are not familiar with the mathematics/physics machinery. But what this means for neuroscience (and why NeuroAI needs it)? See the companion that explains and unwraps it for computational/systems neuroscientists. 👇 neurovium.science/posts/pblog-...
neurovium.science
When Does Matter Compute? Wave Memory, Closure, and the Architecture of Autonomous Physical Computation
Companion post to: Autonomous Physical Computation: A Categorical Closure Criterion for Physical and Neuromorphic Reservoirs. Nima Dehghani arXiv 2026. DOI: https://doi.org/10.48550/arXiv.2607.23902
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Nima Dehghani @neurovium.bsky.social · 26/08/2026
New additions TO-READ ! Tommy's (Poggio) "Brains, Minds and Machines" & Max Welling "GenAI and Stochastic Thermodynamics"
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Nima Dehghani @neurovium.bsky.social · 18/08/2026
Cortical Machinery as a Design Principle for RNNs. Functional connectomics as architectural resource for AI Read here 👇📜 neurovium.science/posts/pblog-...
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Nima Dehghani @neurovium.bsky.social · 18/08/2026
When Prediction Shapes the Machine: Evolutionary Reservoirs, Chaos, and Structural Constraints "What is under a reservoir's hood?" Read here 👇📜 neurovium.science/posts/pblog-...
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Nima Dehghani @neurovium.bsky.social · 18/08/2026
New arrival....time to "re-learn" probability from none but Giorgio parisi
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Nima Dehghani @neurovium.bsky.social · 02/08/2026
The paper might be hard to penetrate for some that are not familiar with the mathematics/physics machinery. But what this means for neuroscience (and why NeuroAI needs it)? See the companion that explains and unwraps it for computational/systems neuroscientists. 👇 neurovium.science/posts/pblog-...
neurovium.science
When Does Matter Compute? Wave Memory, Closure, and the Architecture of Autonomous Physical Computation
Companion post to: Autonomous Physical Computation: A Categorical Closure Criterion for Physical and Neuromorphic Reservoirs. Nima Dehghani arXiv 2026. DOI: https://doi.org/10.48550/arXiv.2607.23902
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Nima Dehghani @neurovium.bsky.social · 31/07/2026
I have decided to add the story behind papers to technical companion posts. Here is a starter: "When Prediction Shapes the Machine: Evolutionary Reservoirs, Chaos, and Structural Constraints What is under a reservoir's hood?" 👇 neurovium.science/posts/pblog-... Let me know if you want to see more📜
neurovium.science
When Prediction Shapes the Machine: Evolutionary Reservoirs, Chaos, and Structural Constraints
Companion post to: Evolutionary Optimization Reveals Structural Constraints on Reservoir Architecture for Spatiotemporal Chaos Nima Dehghani arXiv 2026. DOI: https://doi.org/10.48550/arXiv.2606.22765
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Ricard Solé @ricardsole.bsky.social · 13/07/2026
How does nature find Turing patterns? Check in @pnas.org this beautful paper led by @imperialcollegeldn.bsky.social Robert Endres on how evolution can search in high-dimensional parameter spaces using oscillations: www.pnas.org/doi/epdf/10.... And here's my comment: www.pnas.org/doi/epub/10....
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Nima Dehghani @neurovium.bsky.social · 30/07/2026
Looking forward to this
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Nima Dehghani @neurovium.bsky.social · 30/07/2026
Week 4 of summer of papers! Here we go! 📣📷 📜 The central question: when does memory in matter become autonomous computation? 1/n 👇🧵 arxiv.org/abs/2607.23902
arxiv.org
Autonomous Physical Computation: A Categorical Closure Criterion for Physical and Neuromorphic Reservoirs
Physical reservoirs, neuromorphic devices, and wave-mediated systems often possess memory, feedback, and rich state-dependent dynamics, but these properties do not by themselves establish autonomous c...
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Nima Dehghani @neurovium.bsky.social · 24/06/2026
Week 3 of summer of papers! Here we go! 📣🎥📜 If a recurrent dynamical system is selected only for prediction, what structure does it evolve? Not just: can it predict complex timeseries (like Kuramoto-Sivashinsky)? But: what does prediction do to the machine? 1/n 🧵👇 arxiv.org/abs/2606.22765
arxiv.org
Evolutionary Optimization Reveals Structural Constraints on Reservoir Architecture for Spatiotemporal Chaos
Biological systems maintain function in fluctuating environments by transforming past stimulation into internal dynamical states that support future-oriented responses. Reservoir computing provides a ...
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Nima Dehghani @neurovium.bsky.social · 24/06/2026
Perfect open sci + ed. Fueled by the curiosity of great students, backed by the generous support of @neuromatch.bsky.social (1.5 yr of serious compute beyond their Impact Scholar Program), MICrONS data funded by IARPA generated by @alleninstitute.org @jhuapl.bsky.social hosted by @dandiarchive.org
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Nima Dehghani @neurovium.bsky.social · 23/06/2026
A key point of "Open Science" is that it enables the sci community to make advances that otherwise wouldn't have been possible. Thanks to @bingbrunton.bsky.social group who made the efforts to make the AJILE12 data available on @dandiarchive.org , we were able to develop a cool method. Try it!🫵
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Nima Dehghani @neurovium.bsky.social · 18/06/2026
Cool paper from Danyal @danakarca.bsky.social & co👇 www.nature.com/articles/s42...
nature.com
Algorithm–hardware co-design of neuromorphic networks with dual memory pathways - Nature Machine Intelligence
Pengfei Sun et al. develop a spiking neural network with a dual memory pathway, co-designed with a custom neuromorphic chip. The approach delivers over 4× throughput and 5x energy efficiency gains whi...
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Nima Dehghani @neurovium.bsky.social · 16/06/2026
new paper, #NeuroAI 📣📜 Can measured cortical organization be used as an inductive bias for artificial recurrent neural networks? In this work, we ask whether cortical geometry, wiring, and function can push RNNs learn. Not as metaphor, but as measurable structure! 1/n🧵👇 arxiv.org/abs/2606.14975
arxiv.org
Harnessing cortical geometry, wiring, and function as inductive biases for recurrent neural networks
How the wiring and functional organization of cortex shape recurrent computation remains a central question in both neuroscience and machine learning. Here, we leverage data released through the Machi...
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Nima Dehghani @neurovium.bsky.social · 14/06/2026
A good piece from Philip @philipcball.bsky.social
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The Kavli Prize @kavliprize.bsky.social · 10/06/2026
We're thrilled to announce the 2026 #KavliPrize Laureates, scientists pushing boundaries of what humanity knows in #astrophysics #nanoscience #neuroscience. They have revealed new chapters in the story of our universe, the smallest materials, and how the brain works. 1/2
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Nigel Goldenfeld @nigelgoldenfeld.bsky.social · 13/06/2026
Eukaryotic evolution via massive HGT "Our relative timing estimates suggest early interactions between an Asgard archaea and a Planctomycete (bacterium) ... Thus, the prokaryotic-to-eukaryotic transition was probably a gradual and complex process, with a constant flow of HGT from diverse sources."
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Nima Dehghani @neurovium.bsky.social · 12/06/2026
How local is a “local” field potential? In our new paper 📜, we introduce Spatially Masked Regression (SMR), a reconstruction-based framework for asking how much of an electrode signal is locally redundant, and how much is embedded in broader distributed dynamics. 1/n 🧵👇 arxiv.org/abs/2606.11415
arxiv.org
Spatially Masked Regression Reveals Local and Distributed Predictability in Electrophysiological Recordings
Neural recordings are often interpreted as local measurements, yet the signal at any one sensor can also reflect structured activity distributed across the broader network. This raises a basic questio...
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Richard Naud @neuronaud.bsky.social · 11/06/2026
Recent work from the lab: big contrast between the synaptic dynamics of excitatory and inhibitory synapses!
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Nima Dehghani @neurovium.bsky.social · 11/06/2026
See the paper card (for link and the blog) on the recent manuscript on inhibitory neurons across different layers of the cortex! ps...the universality paper (quoted tweet) will be a follow up on this one. neurovium.science/papers/Inhib...
neurovium.science
Morphoelectric properties of inhibitory neurons shift gradually and regardless of cell type along the depth of the cerebral cortex
This work shows that cortical interneuron morphoelectric properties are organized by two separable axes: molecularly related, depth-independent cell-type structure and gradual, depth-dependent shifts ...
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Nima Dehghani @neurovium.bsky.social · 09/06/2026
Beautiful
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The Transmitter @thetransmitter.bsky.social · 09/06/2026
@macshine.bsky.social talks with @satra.bsky.social about the #OHBM2026 Abstract Atlas—a community-built tool that places every 2026 abstract inside the broader neuroscience landscape. Where does your work sit in the field? #neuroskyence www.thetransmitter.org/open-source-...
thetransmitter.org
Finding your place in neuroscience
A new tool places every OHBM 2026 abstract inside a semantic map of the neuroscience literature, so you can find your neighbors.
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Nima Dehghani @neurovium.bsky.social · 09/06/2026
Mistakes happen. That is part of the sci progress. What is most important is reproducibility, verification & honesty. That the authors shared their data and in essence agreed to be criticized is itself necessary. That they opted to retract is honorable. Use @dandiarchive.org to amplify this! 🧵👇1/5
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Tim Verstynen @tdverstynen.bsky.social · 05/06/2026
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Liset M. de la Prida @lmprida.bsky.social · 08/06/2026
A must-needed benchmarking👇🏼 How much is methodological and how much is conceptual? A reason for us developing #rippl-AI github.com/PridaLab/rip... Don’t miss the next hackathon avant-FENS pre-fens-brainhack.github.io/brainhack2026/ with @acnavasolive.bsky.social & @mattiachini.bsky.social
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Nima Dehghani @neurovium.bsky.social · 07/06/2026
Murray Sherman viewpoint on the mammalian brain through an evo lens
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Nima Dehghani @neurovium.bsky.social · 07/06/2026
Perspective piece from Blake @tyrellturing.bsky.social @mandanas.bsky.social 👇
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Nima Dehghani @neurovium.bsky.social · 05/06/2026
academic.oup.com/pnasnexus/ad...
academic.oup.com
A statistical physics framework for optimal learning
Abstract. Learning is a complex dynamical process shaped by a range of interconnected decisions. Careful design of hyperparameter schedules for artificial
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Nima Dehghani @neurovium.bsky.social · 05/06/2026
An interesting take on biological experimentation
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Nima Dehghani @neurovium.bsky.social · 04/06/2026
www.nature.com/articles/s41...
nature.com
Intracellular neuronal recordings across DNA tiles - Nature Nanotechnology
Self-inserting DNA origami tiles form stable nanopores across live neuronal membranes, enabling intracellular-like voltage recordings, small-molecule delivery and access to hard-to-reach dendrites wit...
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Nima Dehghani @neurovium.bsky.social · 04/06/2026
Without any doubt, if given ownership, governments will try to use AI for surveillance, control and weapons. I completely disagree that the government should own AI companies. Should governments put guardrails that AI companies don't turn to monopolies or disrupt the society negatively? Yes 100%.
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Nima Dehghani @neurovium.bsky.social · 04/06/2026
An undergrad (literally) asked me "is it ok to cite a 2001 paper?" If you have written a paper >25 yrs ago, rest assured that you are not considered relevant by the new generation. 🫩🤦
static.klipy.com
Farnsworth: I'm Old, Leave Me Alone Meme
ALT: Farnsworth: I'm Old, Leave Me Alone Meme
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