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Shrey Dixit

@shreydixit.bsky.social
98 followers 188 following 30 posts

Doctoral Researcher doing NeuroAI at the Max Planck Institute of Human Cognitive and Brain Sciences

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Shrey Dixit @shreydixit.bsky.social · 29/09/2026
Find me and my poster at #Bernstein2026 today during Session 1. I will be talking about Infantile Amnesia and how Representational Drift might have something to do with it. The abstract can be found at: abstracts.g-node.org/conference/B...
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Andrej Bicanski @andrejbicanski.bsky.social · 22/09/2026
Now accepted and published --- with many thanks to the referees for helping sharpen the manuscript. Long time since the first notes. Good to see it officially out. www.cell.com/current-biol...
cell.com
A vector navigation and inference architecture can construct universal cognitive maps for abstract reasoning
Bicanski proposes an algorithm and neural mechanisms for the iterative construction of abstract cognitive maps via non-local inference. Map positions are triangulated and memorized by a set of extant ...
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IMPRS CoNI @imprsconi.bsky.social · 15/09/2026
Call for Applications! Interested in the brain 🧠 & in doing a #PhD 👨‍🎓👩‍🎓 in Cognitive NeuroImaging with our research partners @mpicbs.bsky.social @unileipzig.bsky.social @tudresden.bsky.social @uclbrainscience.bsky.social? 📅 Apply by 2 Nov 2026 shortlink.win/1y98h We look forward to your application! 😀
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Kayson Fakhar @kayson.bsky.social · 02/09/2026
🚨 8 months after, this paper found its home at Science Advances. We came up with a generative brain network model based on game theory and found that the human brain is suboptimal both in terms of wiring cost and communication efficiency. Here's why: www.science.org/doi/10.1126/...
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Daniel Reznik 🎶 @reznikdaniel.bsky.social · 08/09/2026
Now out in Hippocampus!! 📣💥 We examined anatomical inputs to the hippocampal region in six species - the tenrec, rat, marmoset, cat, macaque, and human - and found that hippocampal processing operates on fundamentally different types of information across species! (1/3) dx.doi.org/10.1002/hipo...
dx.doi.org
Phylogeny of Cortical‐Hippocampal Projections Reveals Selective Elimination of Input From Sensory Regions
The study of cross-species differences in the organization of the cerebral cortex received significant attention during the past century. However, the evolutionary principles governing changes in bra...
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Viktor Studenyak @vstudenyak.bsky.social · 07/09/2026
New preprint from my PhD at MPI CBS 🧠, with @doellerlab.bsky.social and @andrejbicanski.bsky.social “A computational model of the two dentate gyrus blades” What mechanisms allow the two DG blades to support distinct coding regimes? (www.biorxiv.org/content/10.6...) 1/9
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Casper Kerrén @ckerren.bsky.social · 24/07/2026
Excited to finally share our new paper in @natcomms.nature.com: Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval www.nature.com/articles/s41... With @s-michelmann.bsky.social and @doellerlab.bsky.social
nature.com
Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval - Nature Communications
How past experiences are reconstructed from memory remains unclear. Here the authors used intracranial EEG to show that hippocampal ripples reshape the geometry of cortical representations, supporting...
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Shrey Dixit @shreydixit.bsky.social · 03/08/2026
Find me at #CCN2026 presenting my poster on the 5th of August in NYC. I'll be obsessing over World Models and why they are so much more interesting when they're probabilistic! You can also find my poster online at: drive.google.com/file/d/1pebH...
drive.google.com
Shrey Poster CCN 2026.pdf
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Shrey Dixit @shreydixit.bsky.social · 03/07/2026
Learned a lot and had so much fun!
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Caswell Barry @caswell.bsky.social · 16/06/2026
Job klaxon 📣 UCL is hiring two NeuroAI / computational neuroscience specialists (Lecturer or Associate Prof) — a big part of the new NeuroAI centre we're growing in Biosciences. Do consider applying if it's relevant to you. JD & details: www.jobs.ac.uk/job/DRX021 Happy to take questions.
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Doeller Lab @doellerlab.bsky.social · 04/06/2026
Join us at the Max Planck Institute in Leipzig as a fully funded 4-year postdoc position (m/f/d) in Cognitive and Computational Neuroscience (Area: Social Cognition). Excellent infrastructure with a leading scientific network. Apply by 13 July: recruitingapp-5218.de.umantis.com/Vacancies/44...?
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Shrey Dixit @shreydixit.bsky.social · 02/06/2026
Bruh
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Neuromatch @neuromatch.bsky.social · 31/05/2026
Computational Behaviour launches July 2027! 🤓 A fully remote two-week course, open to participants worldwide. ➡️ Learn more and get involved: neuromatch.io/computationa... #ComputationalScience #ComputationalBehaviour #Neuroscience #Neuromatch #ConnectedMinds @connectedminds.bsky.social
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Tim Kietzmann @timkietzmann.bsky.social · 26/05/2026
Our NeuroAI study made it onto the cover of Nature Machine Intelligence ❤️. In it, we demonstrate that a developmentally-inspired visual diet can drastically improve the robustness of ANN-based vision systems. www.nature.com/articles/s42... open access, open code, open weights, open science.
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Philip Sulewski @psulewski.bsky.social · 26/05/2026
Now out in Nature Neuroscience: "Fixation duration on natural scenes is explained by memory encoding not processing demand". www.nature.com/articles/s41... Our eyes don't linger because recognition is hard; they linger to remember. Let me take you on a quick tour. 🧵
nature.com
Fixation duration on natural scenes is explained by memory encoding not processing demand - Nature Neuroscience
By combining magnetoencephalography and eye tracking, this study sheds light on why people fixate on some parts of natural scenes longer than others. Rather than visual complexity, fixation durations ...
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Nancy Kanwisher @nancykanwisher.bsky.social · 21/05/2026
This is one of the most exciting pieces of science I have had the privilege to be involved in, led by @rui-xu.bsky.social‬, Bob Desimone, and Mark Richardson: the discovery of actual long-range monosynaptic connections in the human brain! For example the FFA connects to the rTPJ, how cool is that?
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Kayson Fakhar @kayson.bsky.social · 18/05/2026
🚨 The actual paper is now out on @cp-trendscognsci.bsky.social: www.sciencedirect.com/science/arti... In this opinion piece, @duncanastle.bsky.social and I explore the human brain through the lens of optimality and Pareto-optimality theory.
sciencedirect.com
Embracing the suboptimal organization of the human brain
Human brain architecture is guiding brain-inspired artificial intelligence (AI) and has been treated as an optimal template, whose deviations could ma…
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Konrad Kording @kordinglab.bsky.social · 28/04/2026
After rereading the cool hidden brain paper (www.frontiersin.org/journals/sys...) I decided to make a new version. Code and everything available here: github.com/koerding/neu... Most popular: hippocampus. Why are diagonal band, medial geniculate nucleus, and interposed nucleus so unpopular?
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Earl K. Miller @earlkmiller.bsky.social · 29/04/2026
The prefrontal cortex controls memory organization in the hippocampus www.nature.com/articles/s41... #neuroscience
nature.com
The prefrontal cortex controls memory organization in the hippocampus - Nature Neuroscience
Related memories are sometimes encoded in overlapping neurons. The authors show that the prefrontal cortex controls this type of memory organization in the hippocampus through direct projections to th...
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Shrey Dixit @shreydixit.bsky.social · 18/04/2026
Thanks for the invite! Really looking forward to this
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Fei Wang @ffeiwang.bsky.social · 08/04/2026
1/N: Dear colleagues, I would like to share a new paper on the subiculum, part of my PhD with the Neural Computation Group @andrejbicanski.bsky.social @mpicbs.bsky.social . We present “A theory of subicular function and generalized vector coding” that we call Disco. www.biorxiv.org/content/10.6...
biorxiv.org
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Emre Yavuz @emre-yavuz-21.bsky.social · 10/03/2026
My first-author review ‘Determinants of individual navigation ability’ is out in Nature Reviews Psychology, co-authored with the inspiring @hugospiers.bsky.social!!!! 🎉🧠 ➡️ rdcu.be/e7KxG #Neuroscience #Navigation @nature.com @natrevpsychol.nature.com @sfn.org @fens.org @ucl.ac.uk
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Shrey Dixit @shreydixit.bsky.social · 09/03/2026
Can whole-brain fMRI responses to naturalistic video stimuli be predicted using only transcripts? Last year, I gave a tutorial on exactly that. Since the response was very positive, I’ve now released both the tutorial notebook and the trained models publicly.
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Andrej Bicanski @andrejbicanski.bsky.social · 09/03/2026
Now out in Hippocampus. Fei Wang‘s model of Trace Vector Cells and intra-subiculum processing, consistent with know effects in CA1. onlinelibrary.wiley.com/share/CPZPYM...
onlinelibrary.wiley.com
Dynamic Updating of Cognitive Maps via Traces of Experience in the Subiculum
You have to enable JavaScript in your browser's settings in order to use the eReader.
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Shrey Dixit @shreydixit.bsky.social · 08/03/2026
Reminds me of a similar game I played at the Jew museum in Berlin on being a Jew before and during the Holocaust. It's sad going through it but it's also important to understand.
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Motahareh @motaharehpr.bsky.social · 06/03/2026
Excited to give a talk at #Cosyne2026 about my PhD work! We show that RNNs trained on visual search converge on brain-like solutions, producing primate-like behavior and neural representations. Happy to chat if you're at Cosyne! 📅 March 15, 2026 📍 Lisbon, Portugal www.biorxiv.org/content/10.1...
biorxiv.org
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Benjamin Cowley @benjocowley.bsky.social · 26/02/2026
DNN models of the brain are getting bigger. Are we replacing one complicated system in vivo with another in silico? In new work, we seek the *smallest* DNN models of visual cortex, balancing prediction with parsimony. It turns out these compact models are surprisingly small! rdcu.be/e5H8G
rdcu.be
Compact deep neural network models of the visual cortex
Nature - Parsimonious deep neural network models can be used for prediction of visual neuron responses.
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Casper Kerrén @ckerren.bsky.social · 26/02/2026
1/9 New paper with @gonzalezgarcia.bsky.social and @lindedomingo.bsky.social : “Characterising semantic prioritisation in visual working memory.” Core question: when we hold visual info briefly in mind, what gets accessed first: perceptual details or semantic meaning?
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Qiaoli Huang @qiaoli-huang.bsky.social · 18/02/2026
Our new preprint is out on bioRxiv! @doellerlab.bsky.social We show that eye-movement sequences actively organize information by aligning with underlying structure and flexibly adapting to cognitive demands in working memory. www.biorxiv.org/content/10.6...
biorxiv.org
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Shrey Dixit @shreydixit.bsky.social · 11/02/2026
Excited to see what comes out of it. Having worked on a similar problem during the Algonauts Challenge, I was quite surprised by the results in the paper.
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Konrad Kording @kordinglab.bsky.social · 09/02/2026
neuroAI comparisons of ANNs to brains do have a range of problems. Even more than I had realized. And I was worried before: www.biorxiv.org/content/10.1...
biorxiv.org
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Doeller Lab @doellerlab.bsky.social · 04/02/2026
🧠 The Mind Meeting Series is back! Organized by us & Bicanski Lab, featuring leading scientists in cognitive and computational neuroscience. Our first speaker is @lukaskunz.bsky.social (University Hospital Bonn). 🗓 February 12 | 3:00 PM 📍 In person (Zoom available) We look forward to seeing you!
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Michel Nivard @michelnivard.bsky.social · 02/02/2026
Ending up in the space between fields where you have no way of effectively communicating your work has always driven me right back into my discipline…
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PessoaBrain @pessoabrain.bsky.social · 02/02/2026
𝗦𝗰𝗵𝗲𝗺𝗮-𝗯𝗮𝘀𝗲𝗱 𝗮𝗰𝘁𝗶𝘃𝗲 𝗶𝗻𝗳𝗲𝗿𝗲𝗻𝗰𝗲 𝗮𝗻𝗱 𝗳𝗿𝗼𝗻𝘁𝗮𝗹 𝗰𝗼𝗿𝘁𝗶𝗰𝗮𝗹 𝗰𝗼𝗱𝗶𝗻𝗴 𝗼𝗳 𝗮𝗯𝘀𝘁𝗿𝗮𝗰𝘁 𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 Giovanni Pezzulo et al introduce hierarchical model of goal attainment in PFC. Looks very impressive. #neuroskyence arxiv.org/abs/2601.189...
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Martin Hebart @martinhebart.bsky.social · 12/03/2025
We make about 3-4 fast eye movements a second, yet our world appears stable. How is this possible? In a preprint led by @lucakaemmer.bsky.social we test the intriguing idea that anticipatory signals in the fovea may explain visual stability. www.biorxiv.org/content/10.1...
media.tenor.com
a woman in a white shirt is standing in front of a refrigerator in a store .
ALT: a woman in a white shirt is standing in front of a refrigerator in a store .
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Neuroskeptic @neuroskeptic.bsky.social · 25/01/2026
"How much of the brain's learned algorithms depend on the fact it is a brain?" arxiv.org/abs/2601.02063 The brain is a neural network, but also a biological organ (unlike artificial neural networks). How much does this matter to cognition?
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Tim Behrens @behrenstimb.bsky.social · 22/01/2026
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!
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Rachel Thomas @math-rachel.bsky.social · 21/01/2026
Close reading is a technique for careful analysis of a piece of writing, practiced by many ancient cultures, major religions, & academic scholars. The latest fastai course experimented with using AI to go deeper when reading. 1/ www.fast.ai/posts/2026-0...
fast.ai
How To Use AI for the Ancient Art of Close Reading – fast.ai
Experiments in reading with LLMs
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Michael Fox @foxmdphd.bsky.social · 18/01/2026
Are connectome-based network mapping methods and the >200 papers that have used it invalid? New paper out in @NatureNeuro says YES. nature.com/articles/s41... I have concerns about this new paper's methods and conclusions, but am biased. What do others think?
nature.com
Investigating the methodological foundation of lesion network mapping - Nature Neuroscience
The lesion network mapping method links diverse brain lesions to similar functional brain networks, reflecting general brain organization rather than disorder-specific circuits.
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Iris Groen @irisgroen.bsky.social · 16/01/2026
I have a PhD opening for my #VIDI BrainShorts project 📽️🧠🤖! Are you or do you know an ambitious, recent (or almost) MSc graduate with a background in NeuroAI and interest in large-scale data collection and video perception? Check out our vacancy! (deadline Feb 15). werkenbij.uva.nl/en/vacancies...
werkenbij.uva.nl
Vacancy — PhD Position in NeuroAI for Video Perception in the Human Brain
<p><span>Are you interested in using AI to unravel the mysteries of the brain? Do you want to perform cutting-edge NeuroAI research and leverage deep learning to understand human vision? Then check out the vacancy below and apply for a PhD position in this exciting research direction.</span></p>
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Qiaoli Huang @qiaoli-huang.bsky.social · 16/01/2026
Our new paper, now published in Cell Reports, asks how the brain adaptively shapes its representations according to the statistical structure of the environment to overcome the limits of working memory capacity. www.cell.com/cell-reports...
cell.com
Efficient coding in working memory is adapted to the structure of the environment
Huang et al. show that the brain optimizes working memory by compressing information when environmental regularities exist. MEG reveals distinct neural systems for abstract structure and item details,...
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Anna Schapiro @annaschapiro.bsky.social · 15/01/2026
Really thrilled that this paper led by @neurozz.bsky.social is now published in its final version in @elife.bsky.social!! This is a memory-focused (as opposed to RL-focused) account of the detailed characteristics of forward and backward awake and sleep replay! elifesciences.org/articles/99931
elifesciences.org
A unifying account of replay as context-driven memory reactivation
A context-driven memory model simulates a wide range of characteristics of waking and sleeping hippocampal replay, providing a new account of how and why replay occurs.
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Konrad Kording @kordinglab.bsky.social · 15/01/2026
Another cool paper from Iran: nature.com/articles/s41... Prenatal stress makes mouse offspring more anxious, hyperactive, forgetful, and more drawn to morphine while laterodorsal tegmentum cholinergic neurons become hyperexcitable. From Kerman, a city with reported violent crackdowns on protests.
nature.com
The hyperexcitability of laterodorsal tegmentum cholinergic neurons accompanies adverse behavioral and cognitive outcomes of prenatal stress - Scientific Reports
Scientific Reports - The hyperexcitability of laterodorsal tegmentum cholinergic neurons accompanies adverse behavioral and cognitive outcomes of prenatal stress
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Jens E. Pedersen @jegp.bsky.social · 14/01/2026
The field of #neuromorphics is lacking *accessible*, *intuitive*, and *practical* introductions. Ramashish Gaurav, Petruț Antoniu Bogdan, and I are setting out to fix this with a book on Practical Spiking Neural Networks! ✅ Any and all contributions are welcome! 💕 Early access at: snnbook.net
Front page of the website for the book: Practical Spiking Neural Networks
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Alessandro Gifford @alessandrogifford.bsky.social · 24/11/2025
We’d love your feedback on BERG (github.com/gifale95/BERG): pretrained encoding models + a Python toolkit for generating in silico neural responses for in silico experimentation. Your input will make BERG more useful and reliable! forms.gle/pybrqcaqdso2... #NeuroAI #CompNeuro #neuroscience #AI
forms.gle
The Brain Encoding Response Generator (BERG) survey
Thank you for taking part in this survey aimed at (anonymously) collecting your thoughts and suggestions on a new resource called the Brain Encoding Response Generator (BERG; https://github.com/gifale...
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Mackenzie Weygandt Mathis @trackingactions.bsky.social · 31/12/2025
Interested in the latest advances in neuroscience (neural dynamics and internal models) and how they can be leveraged to build smarter, adaptive AI? ➡️ My first real solo piece 🖤🫶 @natneuro.nature.com rdcu.be/eWVmA
rdcu.be
Leveraging insights from neuroscience to build adaptive artificial intelligence
Nature Neuroscience - Adaptive intelligence envisions AI that, like animals, learns online, generalizes and adapts quickly. This Perspective reviews biological foundations, progress in AI and...
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Sakana AI @sakanaai.bsky.social · 12/01/2026
Introducing DroPE: Extending Context by Dropping Positional Embeddings We found embeddings like RoPE aid training but bottleneck long-sequence generalization. Our solution’s simple: treat them as a temporary training scaffold, not a permanent necessity. arxiv.org/abs/2512.12167 pub.sakana.ai/DroPE
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Tatjana Tchumatchenko @tatjanat.bsky.social · 10/01/2026
Please spread the word🔊My lab is looking to hire two international postdocs. If you want to do comp neuro, combine machine learning and awesome math to understand neural circuit activity, then come work with us! Bonn is such a cool place for neuroscience now, you don't want to miss out.
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Sam Gershman @gershbrain.bsky.social · 09/01/2026
With some trepidation, I'm putting this out into the world: gershmanlab.com/textbook.html It's a textbook called Computational Foundations of Cognitive Neuroscience, which I wrote for my class. My hope is that this will be a living document, continuously improved as I get feedback.
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Casper Kerrén @ckerren.bsky.social · 08/01/2026
New preprint: Inference over hidden contexts shapes the geometry of conceptual knowledge for flexible behaviour. In this pre-reg study, our core claim was that we don’t just learn stimulus-reward. We infer hidden context and that inference re-wires attention and neural state space on the fly. 1/8
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