How do 🐁deal with complex landscapes? Turns out they learn a lot very quickly. We think they do this by learning a set of repeated sparse paths, which form a type of compressed world model. Joint work with the Hermundstad lab, led by Tzuhsuan Ma and Alison Comrie: www.biorxiv.org/content/10.6...
Eric Denovellis
@eric-denovellis.bsky.social
Computational Neuroscience Research Scientist @UCSF Frank Lab https://www.edenovellis.com/ https://github.com/edeno
I wanted to highlight the work of Alison Comrie et al. that recently came out in Neuron and I don’t think it is getting enough attention: paper: cell.com/neuron/fulltext/S0896-6273(26)00674-4 #neuroskyence
Excited that our paper, “The limbic navigation system as a hierarchical RNN”, has been accepted at #NeurIPS! Joint work with two talented students, Huiwen Zhang, Krishna Gorantla, and @neilburgess10.bsky.social. We use a multi-module RNN to explore how the brain’s navigation circuits works.
I wanted to highlight the work of Alison Comrie et al. that recently came out in Neuron and I don’t think it is getting enough attention: paper: cell.com/neuron/fulltext/S0896-6273(26)00674-4 #neuroskyence
Today I'm releasing the "1000×1000 collection": a unified place to learn about dynamical structure. 1000 simulated time series (1000 samples each) spanning 133 dynamical processes. Have a play? 🐛 #timeseries #dynamicalsystems #complexity #opendata dynamicsandneuralsystems.github.io/1000x1000/
I'm looking forward to attending the FIRST Entorhinal-hippocampal Memory GRC!! Planning to bring two students also - anyone know of folks looking to share a room? www.grc.org/entorhinal-h...
2027 Entorhinal-Hippocampal Memory Circuits Conference GRC
The 2027 Gordon Research Conference on Entorhinal-Hippocampal Memory Circuits will be held in Oxnard, California. Apply today to reserve your spot.
grc.org
Just released a new version of nwb4edu, an online resource for educators and self-guided learners to use @nwb.org datasets, to adapt for the loss of Dandihub 😢 nwb4edu.github.io
nwb4edu.github.io
Thanks to the video from the Black Hat security conference of OpenAI's presentation about "The Hugging Face Incident" we now have a detailed timeline of what happened from OpenAI's perspective - I wrote up the details here, it's pretty wild simonwillison.net/2026/Aug/7/o...
Now we have a timeline of the OpenAI accidental attack against Hugging Face
OpenAI gave a last-minute presentation at the Black Hat security on Wednesday about “the Hugging Face Incident” (previously on this blog). The video was published yesterday. It’s short and information...
simonwillison.net
www.scientificamerican.com/article/amat... Title is whatever, but there is some interesting stuff here on finding simpler answers with AI.
Even experts are surprised by AI’s latest ‘vibe-mathing’ advance
A ChatGPT AI has proved a conjecture with a method no human had thought of. Experts believe it may have further uses
scientificamerican.com
New Annual Review with @nathanieldaw.bsky.social: “Planning in the Brain: It's Not What You Think It Is.” We argue that the brain's 'planning' machinery is mostly used for learning from simulated experience, and that thinking prospectively at decision time is just one special case of this process.
Planning in the Brain: It's Not What You Think It Is
The neuroscience of planning has long been analogized to search algorithms in artificial intelligence (AI), which simulate future actions to guide immediate choices. We argue that advances in both neu...
annualreviews.org
This is a great opportunity for all Arabic speakers intersted in computational neuroscience - The Introduction to Computational Neuroscience Online School. The whole thing is in Arabic, fully free and TAs are paid. Deadline in 3 days! More here: arabsinneuro.org/school/
AiN summer school equips you with the essential tools and knowledge to explore the brain through the lens of computers and algorithms. Whether you're a neuroscience enthusiast or a programming wizard, this program empowers you to understand the mind's complex workings through the power of code.
arabsinneuro.org
Boston University’s removal of Pride flags and other peaceful displays is not a minor policy issue. Censoring these expressions sets a dangerous precedent for the entire community. Whether you are a BU alum or an ally, please add your name now: alumni.standforcampusfreedom.org/petitions/te...
Boston University: Protect free speech for faculty, students, and staff
Boston University’s removal of Pride flags and other peaceful displays is not a minor policy issue. When a university that claims to support free speech starts policing what faculty, students, and sta...
alumni.standforcampusfreedom.org
Great papers in spatial neuro this week. Csicsvari's group: hippocampal place fields stabilise during learning while mPFC stays flexible. Giocomo's lab: CA1-subiculum topography actively shapes boundary coding & corner cells. doi.org/10.64898/2026.03.27.714523 doi.org/10.64898/2026.03.24.714092
My main postdoc work is now published: www.nature.com/articles/s41...! We (myself, Isabel Low, Frances Cho, and @lgiocomo.bsky.social) discovered task-relevant remote representations in entorhinal cortex independent of CA1. #paperthread below! 1/13
Entorhinal cortex represents task-relevant remote locations independently of CA1 - Nature Neuroscience
Neurons in medial entorhinal cortex collectively represent discrete nonlocal positions during immobility. During this nonlocal coding, CA1 is uncoupled from entorhinal cortex. These representations ar...
nature.com
Axel F meets Samuel Beckett in The Lifestyles of the Rich and Tenured statmodeling.stat.columbia.edu/2026/02/25/a...
Axel F meets Samuel Beckett in The Lifestyles of the Rich and Tenured | Statistical Modeling, Causal Inference, and Social Science
statmodeling.stat.columbia.edu
Breaking News: The Nobel laureate Richard Axel said he was resigning as co-director of a Columbia brain institute over his friendship with Jeffery Epstein.
Leader of Columbia Brain Institute Quits Over Friendship With Epstein
The Nobel laureate Richard Axel is not accused of wrongdoing but called his association with Jeffrey Epstein a “serious error in judgment.”
nyti.ms
Excited to be co-organising a #cosyne2026 workshop with Alison Comrie on 'algorithms for learning from scratch'! With a great line-up of speakers, we'll be tackling the question of what processes enable naive biological & artificial agents to adapt to new situations. Info here: tinyurl.com/4u8enf7k
learningfromscratch
march 16th, workshop day 1 @ cosyne 2026
sites.google.com
A lot of 1990s photos of Oasis look like this to me.
Get in, dorks. We're ready for round two. RALLY TO TAKE BACK SCIENCE! 🔬🧪✊ March 7th, 2026 in Washington, DC Learn more at www.standupforscience.net/ma... (link in our bio.)
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)
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)
biorxiv.org
Alex Pretti was already restrained when federal agents shot and killed him in Minneapolis, a New York Times analysis of video shows. The footage contradicts the Department of Homeland Security’s account of the shooting.
Timeline: How the Shooting of Alex Jeffrey Pretti Unfolded
A moment-by-moment analysis of video from the scene shows that Mr. Pretti was already restrained when fatal shots were fired, which appears to contradict the federal government’s account of the event.
trib.al
📣 NeuroDataReHack 2026 applications are open! Join us July 13-17 at Janelia to explore 450+ open neurophysiology datasets on @dandiarchive.org. Learn to analyze existing data and integrate it into your research. Free to attend, lodging & meals covered. Apply by Feb 20: nwb.org/events/hck26...
Introducing a new scientific computing library: syntropy. Syntropy is a comprehensive package for information theory, aimed at both theoreticians and data analysts working on discrete, continuous, and mixed data. 1/N github.com/thosvarley/s...
GitHub - thosvarley/syntropy: A python package for information-theoretic analysis of discrete and continuous data.
A python package for information-theoretic analysis of discrete and continuous data. - thosvarley/syntropy
github.com
📣 Pre-COSYNE Brainhack 2026 – Join Us in Lisbon! 🧠✨ March 10–11, 2026 • Lisbon, Portugal pre-cosyne-brainhack.github.io/hackathon2026 Kick off COSYNE week with two days of hands-on, team-based hacking around real electrophysiology data! ✅ Apply now via the event website (limited spots).
Can humans & animals really use internal maps to take shortcuts? Tolman famously said yes - based largely on his Sunburst maze. Our new review & meta-analysis suggests evidence is far weaker than you might think. 🧵👇 doi.org/10.1111/ejn.... @uofgpsychneuro.bsky.social @ejneuroscience.bsky.social
Tolman's Sunburst Maze 80 Years on: A Meta‐Analysis Reveals Poor Replicability and Little Evidence for Shortcutting
In 1946, Tolman et al. reported that rats could take a novel shortcut to a goal after training on an indirect route, supporting the Cognitive Map theory. However, a review of subsequent Sunburst maze...
doi.org
🎉 NeuroConv 0.9.0 is out! This release brings: ✅ Redesigned TIFF converter for multi-file & volumetric data ✅ Enhanced Miniscope support with auto-aggregation ✅ NWB file repacking for better compression ✅ New behavioral data documentation Read more: catalystneuro.com/blog/neuroco...
CatalystNeuro - Neurophysiology Data & Software Solutions
CatalystNeuro empowers neuroscience labs with data standardization, NWB conversions, spike sorting pipelines, and open-source software tools.
catalystneuro.com
🧠📢 New preprint alert Large-scale ephys is exploding but spike sorting remains the computational bottleneck. A 2-hr, 6-probe Neuropixels 2.0 Quad Base session can take over a week to sort on a single machine. Here's a better solution. 🧵 #neuroskyence #compneurosky
Check out our new perspective paper in eNeuro! We explore recent advancements and future prospects in open neuroscience, and discuss how open science practices, data sharing, and structural changes can create a more collaborative and transparent scientific ecosystem www.eneuro.org/content/12/1...
Open Data In Neurophysiology: Advancements, Solutions & Challenges
Ongoing efforts over the last 50 years have made data and methods more reproducible and transparent across the life sciences. This openness has led to transformative insights and vastly accelerated sc...
eneuro.org