We think cortex might function like a JEPA. It looks like prediction errors in layer 2/3 are not computed against input (as is the idea in predictive processing), but against a representation in latent space (i.e. like in a JEPA arxiv.org/abs/2301.08243 or RPL doi.org/10.1101/2025...).
30.01.2026 14:51 — 👍 35 🔁 10 💬 2 📌 2
Attention-like regulation of theta sweeps in the brain's spatial navigation circuit
Spatial attention supports navigation by prioritizing information from selected locations. A candidate neural mechanism is provided by theta-paced sweeps in grid- and place-cell population activity, which sample nearby space in a left-right-alternating pattern coordinated by parasubicular direction signals. During exploration, this alternation promotes uniform spatial coverage, but whether sweeps can be flexibly tuned to locations of particular interest remains unclear. Using large-scale Neuropixels recordings in freely-behaving rats, we show that sweeps and direction signals are rapidly and dynamically modulated: they track moving targets during pursuit, precede orienting responses during immobility, and reverse during backward locomotion — without prior spatial learning. Similar modulation occurs during REM sleep. Canonical head-direction signals remain head-aligned. These findings identify sweeps as a flexible, attention-like mechanism for selectively sampling allocentric cognitive maps. ### Competing Interest Statement The authors have declared no competing interest. European Research Council, Synergy Grant 951319 (EIM) The Research Council of Norway, Centre of Neural Computation 223262 (EIM, MBM), Centre for Algorithms in the Cortex 332640 (EIM, MBM), National Infrastructure grant (NORBRAIN, 295721 and 350201) The Kavli Foundation, https://ror.org/00kztt736 Ministry of Science and Education, Norway (EIM, MBM) Faculty of Medicine and Health Sciences; NTNU, Norway (AZV)
The hippocampal map has its own attentional control signal!
Our new study reveals that theta #sweeps can be instantly biased towards behaviourally relevant locations. See 📹 in post 4/6 and preprint here 👉
www.biorxiv.org/content/10.6...
🧵(1/6)
28.01.2026 10:03 — 👍 177 🔁 62 💬 2 📌 10
Il est arrivé…
« Le Rectangle de Lascaux »rencontre le triangle des Éditions Odile Jacob !
Sortie en librairie mercredi 28 janvier.
@editionsodilejacob.bsky.social @cnrs.fr @inserm.fr @college-de-france.fr @cedricvillani.bsky.social @davidbessis.bsky.social
21.01.2026 18:00 — 👍 12 🔁 6 💬 1 📌 0
clever and humble take 🤓
17.01.2026 00:48 — 👍 0 🔁 0 💬 0 📌 0
12 out of 10 stars. would recommend
15.01.2026 18:33 — 👍 12 🔁 4 💬 2 📌 0
The oneirogen hypothesis: modeling the hallucinatory effects of classical psychedelics in terms of replay-dependent plasticity mechanisms
Our paper on the "Oneirogen hypothesis" is now up in its revised form on eLife!
This is the hypothesis that psychedelics induce a dream-like state, which we show via modelling could explain a variety of perceptual and learning effects from such drugs.
elifesciences.org/reviewed-pre...
🧠📈 🧪
14.01.2026 15:32 — 👍 61 🔁 14 💬 2 📌 1
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.
10.01.2026 17:39 — 👍 32 🔁 37 💬 1 📌 1
Careers
Careers on Simons Foundation
Joint junior faculty position in Computational Neuroscience, between Ctr for Computational Neuroscience at @flatironinstitute.org and the CUNY Graduate Center @thegraduatecenter.bsky.social . Application deadline: 16 Jan 2026!
www.simonsfoundation.org/flatiron/car...
cuny.jobs/new-york-ny/...
06.01.2026 03:14 — 👍 38 🔁 22 💬 1 📌 1
😬
22.12.2025 01:32 — 👍 0 🔁 0 💬 0 📌 0
The Centre for Neural Dynamics and Artificial Intelligence (CNDAI) has a new web face ! @uobmri.bsky.social
uniweb.uottawa.ca/sites/CNDAI
19.12.2025 14:46 — 👍 3 🔁 1 💬 1 📌 0
Wonderful news Friedemann!!! So well deserved. 🎉🎉🎉
19.12.2025 10:22 — 👍 1 🔁 0 💬 1 📌 0
Reminds me of the day there was a citizen motion against the proposed ban of an agriculture chemical. At one point people started asking : "who are those citizens?". Turns out it was Monsanto.
18.12.2025 23:01 — 👍 1 🔁 0 💬 0 📌 0
Fully-funded International Neuroscience Doctoral Programme🧠 Champalimaud Foundation, Lisbon, Portugal 🇵🇹
Deadline: Jan 31, 2026
fchampalimaud.org/champalimaud...
Research program spans systems/computational/theoretical/clinical/sensory/motor neuroscience, neuroethology, intelligence, and more!!
16.12.2025 19:20 — 👍 26 🔁 17 💬 1 📌 0
This is fantastic news
16.12.2025 20:07 — 👍 12 🔁 1 💬 0 📌 0
don't worry about general principles -- figure anything out
14.12.2025 20:33 — 👍 11 🔁 1 💬 0 📌 0
🥳Excited to share our latest human multipatch paper, now out in @natneuro.nature.com
🧠 We studied the cellular and synaptic physiology of human L2–3 pyramidal neurons and identified subtype-specific local connectivity rules across individuals.
www.nature.com/articles/s41...
Join us: penglab.de
13.12.2025 07:59 — 👍 66 🔁 24 💬 4 📌 3
Always such a vibrant NeuroAI community in Montreal !
13.12.2025 21:41 — 👍 17 🔁 3 💬 1 📌 0
Yes that's a neat paper!
08.12.2025 21:31 — 👍 1 🔁 0 💬 1 📌 0
Postdoc & PhD positions
How intrinsic motivation underlies intelligent, open-ended and embodied behavior in natural and artificial agents
Apply if interested
sites.google.com/view/morenob...
03.12.2025 20:26 — 👍 9 🔁 7 💬 2 📌 0
glad to share our new preprint on how representation learning in the cortex can be explained by prediction across time in a recurrent JEPA. check it out here 👇
27.11.2025 16:00 — 👍 11 🔁 1 💬 0 📌 0
1/6 New preprint 🚀 How does the cortex learn to represent things and how they move without reconstructing sensory stimuli? We developed a circuit-centric recurrent predictive learning (RPL) model based on JEPAs.
🔗 doi.org/10.1101/2025...
Led by @atenagm.bsky.social @mshalvagal.bsky.social
27.11.2025 08:24 — 👍 140 🔁 41 💬 3 📌 4
Our new paper is out in Nature Communications! nature.com/articles/s41...
We combined psychophysics, 7T fMRI, and computational modeling of vision with placebo, 5mg, and 10mg psilocybin, in the same group of participants, to clarify the computational mechanisms of psychedelics. 🧵
23.11.2025 22:26 — 👍 65 🔁 23 💬 2 📌 8
SNUFA 2025 Workshop - YouTube
Spiking neural networks as universal function approximators (SNUFA) online workshop 2025. For more see http://snufa.net/2025/
Reminder if you missed #SNUFA spiking neural network and neuromorphic workshop earlier this month, all our talks were recorded and are now available to watch. 🤖🧠🧪
www.youtube.com/playlist?lis...
20.11.2025 14:11 — 👍 19 🔁 6 💬 1 📌 0
Neuroscientist @ TU Berlin, with a weak spot for equations & good food
PhD student with @glajoie.bsky.social at Mila – Quebec AI Institute and Université de Montréal. Computational Neuroscience + Deep Learning. Homebrew maintainer, open source enthusiast. Website: https://nandahkrishna.com
Neuroscience PhD student at McGill
Co-supervised by Adrien Peyrache & Blake Richards
Neuroscientist turned science funder, Amateur cellist, intrepid seamstress, fearless baker, downhill cyclist, Founder+Editor @ indscicomm @biaswatchindia.bsky.social (She/Her)
Pic credit: @bwjones.bsky.social
PhD-ing @Duke | motor control, cortico-subcortical dynamics, pathophysiology | open science | DPT @MGHInstitute | BA @Haverford
PhD student in statistical neuroscience at Princeton. https://victorgeadah.github.io
PhD student working on auditory working memory (Bathellier Lab, Pasteur Institute)
cognitive neuroscience PhD student with @lukejchang.bsky.social at Dartmouth College
Neuroscientist; Associate Professor at UMass Amherst
moormanlab.org
MD-PhD student at Boston University 🧠
face perception, working memory, cell types 🧬
prev. Uni of Oxford & BU Men’s Soccer ⚽️
from Brussels 🇧🇪
Philadelphia Neuroscience Professor obsessed w/dentate gyrus, mentoring, unsweet soymilk. Opinions & bad jokes are mine not my employer’s. She/her/cat.
https://sites.google.com/view/eischlab
Pics: 75% my smiling face, desk, laptop, blue sky with clouds
Associate Professor, CRC in Translational Neuropsychopharmacology Western University Open-Source Behavioural Tools
Committed to knowing better and doing better!
Neuroscience PhD student studying cortical dynamics and neuromodulation across body states.
NINDS F31 Fellow, Moore Lab, Brown University; Prev. Katz Lab, Brandeis University
DFG Emmy Noether group leader @ChariteBerlin. Passionate about synaptic microcircuits and in vivo population dynamics. Multi-neuron patch-clamp and Neuropixels. https://penglab.de
MSCA PhD candidate at the Donders Institute for Brain, Cognition and Behaviour, NL. Interested in the heterogeneity of neurons, brains, ideas, music, and art. Looking for next play!
Reverse engineering the brain
