Sign in

🌙 Lune Bellec

@lune-bellec.bsky.social
3.5K followers 2K following 197 posts

🏳️‍🌈 🏳️‍⚧️ 🌈‍♾️ Prof in psychology at Université de Montréal (she/her). Founder of the cneuromod.ca project: breeding 🤖 to mimic individual human 🧠. Delegate for digital health at the Montreal Geriatrics Institute criugm.qc.ca

PostsRepliesMedia
Reposted by 🌙 Lune Bellec
The Algonauts Project @algonautsproject.bsky.social · 31/08/2026
(1/2) We’re excited to announce the Algonauts Project Challenge 2027 with CNeuroMod: How The Human Brain Makes Sense of Video Games 🎮 🧠 Launching end of 2026. Top 3 teams will present at CCN 2027 in Edinburgh. algonautsproject.com/2027/ #Algonauts2027 #NeuroAI #CompNeuro #fMRI
algonautsproject.com
The Algonauts Project Challenge 2027
The Algonauts Project 2027 Challenge — how the human brain makes sense of video games. Launching end of 2026. Sign up to stay updated.
11515
🌙 Lune Bellec @lune-bellec.bsky.social · 20/07/2026
I you can't beat them, join them. I will now be using emdashes in all my correspondence.
020
Reposted by 🌙 Lune Bellec
Andrea Costantino @costantinoai.bsky.social · 12/11/2025
Super excited to share a new preprint! We asked a simple-but-big question: What changes in the brain when someone becomes an expert? Using chess ♟️ + fMRI 🧠 + representational geometry & dimensionality 📈, we ask: 1️⃣ WHAT information is encoded? 2️⃣ HOW is it structured? 3️⃣ WHERE is it expressed? 1/n
26420
Reposted by 🌙 Lune Bellec
OHBM Open Science Special Interest Group @ohbmossig.bsky.social · 07/05/2026
OHBM Hackathon 2026 | June 11–13 | Bordeaux Come spend three days coding and learning! The OHBM Hackathon takes place right before the OHBM Meeting at Campus Victoire, University of Bordeaux, and it's a great chance to work on projects, pick up new skills, and meet researchers.
1107
Reposted by 🌙 Lune Bellec
Botos Csabi @botoscsabi.bsky.social · 11/05/2026
Jeee 🐦‍⬛ I am very proud of our joint effort with @sreejan.bsky.social on the project "Reason to Play" LRMs show human-like rule discovery, and their hidden states predict human brain activity during gameplay 10x better than previous methods Interactive demo + paper: botcs.github.io/reason-to-pl...
botcs.github.io
Reason to Play - Behavioral and Brain Alignment
32 fMRI-scanned humans and 8 frontier open weight LLMs play ARC-AGI like games with no rules given. The reasoning models match the human learning trajectories and their hidden states predict human bra...
13911
🌙 Lune Bellec @lune-bellec.bsky.social · 06/05/2026
I've wanted to develop brain encoding models for videogames for a while now, but the RL methods so far are just super brittle and don't work nearly as well as what exists for vision-audio-language. That's why I am very excited about this new work arxiv.org/abs/2605.00347 Can't wait to try it.
arxiv.org
Odysseus: Scaling VLMs to 100+ Turn Decision-Making in Games via Reinforcement Learning
Given the rapidly growing capabilities of vision-language models (VLMs), extending them to interactive decision-making tasks such as video games has emerged as a promising frontier. However, existing ...
160
Reposted by 🌙 Lune Bellec
Jean-Rémi King @jeanremiking.bsky.social · 15/04/2026
🧠 the Digital Brain Project is now live: $5M total · up to $500k per selected team Let's open-source the modeling of the human brain brain activity! ➡️Apply on: digitalbrainproject.org
25318
Reposted by 🌙 Lune Bellec
TheBossRoss 🧶 @thebossross.bsky.social · 05/04/2026
A different perspective. Always helpful.
Christopher Penn wrote:

Just remember that given the abundance of neurodivergent people in science, it's far more likely that autism causes vaccines.
190193454260
Reposted by 🌙 Lune Bellec
Pouya Bashivan 🇮🇷🇨🇦 @bashivan.bsky.social · 09/12/2025
Attending the Montreal AI and Neuroscience (MAIN) Conference this week? #MontAIN2025 We have put together some exciting educational workshops on cognitive benchmarking large models, RL and video games and dynamical systems! More info and registration here: main-educational.github.io/program/
main-educational.github.io
Program - MAIN educational 2025
Website of the educational workshop organized during the Montreal Artificial Intelligence and Neuroscience Conference 2025
1101
🌙 Lune Bellec @lune-bellec.bsky.social · 07/12/2025
Registration closes tonight!
010
Reposted by 🌙 Lune Bellec
Audrey Durand @audurand.bsky.social · 06/12/2025
Interested in getting hands on with methods at the intersection of AI and neuroscience? Register to the Educational Workshop of the Montreal AI and Neuroscience (MAIN) Conference 2025! main-educational.github.io
main-educational.github.io
MAIN educational 2025
Website of the educational workshop organized during the Montreal Artificial Intelligence and Neuroscience Conference 2025
051
Reposted by 🌙 Lune Bellec
Clementine Domine 🍊 @CCN @clementinedomine.bsky.social · 04/03/2025
I've created a @gatsbyucl.bsky.social starter pack! Let me know if you’d like to be included, or just jump in to see what we're talking about. Either way, a retweet would be greatly appreciated! 🚀 go.bsky.app/4g6Ro4U go.bsky.app/AErHDon
0104
Reposted by 🌙 Lune Bellec
Ching Fang @chingfang.bsky.social · 26/06/2025
Humans and animals can rapidly learn in new environments. What computations support this? We study the mechanisms of in-context reinforcement learning in transformers, and propose how episodic memory can support rapid learning. Work w/ @kanakarajanphd.bsky.social : arxiv.org/abs/2506.19686
arxiv.org
From memories to maps: Mechanisms of in context reinforcement learning in transformers
Humans and animals show remarkable learning efficiency, adapting to new environments with minimal experience. This capability is not well captured by standard reinforcement learning algorithms that re...
47925
Reposted by 🌙 Lune Bellec
Courtois Project on Neuronal Modelling @cneuromod.ca · 21/11/2025
CNeuroMod is now on substack, and our first post highlights a new study showing that a tiny 2M-parameter audio model can be meaningfully fine-tuned on an individual brain with benefits for downstream AI tasks. open.substack.com/pub/cneuromo...
open.substack.com
When an audio AI Model Play 🧠 Dress-Up
This really is about fine-tuning an audio artificial network to align representations with human brain data, and seeing what happened next
011
Reposted by 🌙 Lune Bellec
Paul Gribble 🇨🇦 @gribblelab.org · 04/11/2025
a gross parliamentary overreach — article by @picardonhealth.bsky.social in the globe and mail; #academicsky #neuroskyence #psychscisky www.theglobeandmail.com/gift/91587b9...
theglobeandmail.com
How much are MPs entitled to know about research grants? Not as much as they think
A parliamentary committee is asking for academics’ private information on a strange anti-DEI crusade
24933
Reposted by 🌙 Lune Bellec
Roberto Toro @r3rt0.bsky.social · 14/10/2025
The 2nd CogBases Workshop is this 4 & 5 Nov at Institut Pasteur! We'll discuss the latest in open science methods for analysing brain imaging data. Registration free, but mandatory neuroanatomy.github.io/cogbases-2025/ @k4tj4.bsky.social @cmaumet.bsky.social @bthirion.bsky.social @demw.bsky.social
1129
Reposted by 🌙 Lune Bellec
Russ Poldrack @russpoldrack.org · 14/10/2025
OpenNeuro @openneuro.bsky.social just hit a huge milestone: 1500 datasets! Congrats to the team on making this project so successful over the last 7 years.
214230
Reposted by 🌙 Lune Bellec
Biological Psychiatry @biologicalpsych.bsky.social · 25/09/2025
The Biological Psychiatry family of journals is now officially on Bluesky! Follow us for the latest research in psychiatric neuroscience, cognitive neuroimaging, and global open science from our three leading journals.
06823
🌙 Lune Bellec @lune-bellec.bsky.social · 08/09/2025
Many brain imaging “biomarkers” for autism have been proposed. Most aim for balanced accuracy (matching sensivity/specificity) on datasets where cases and controls are split 50/50. 1/🧵
2138
🌙 Lune Bellec @lune-bellec.bsky.social · 24/08/2025
"A murder of butterflies" has a nice ring to it.
000
Reposted by 🌙 Lune Bellec
Yann Harel @hyruuk.bsky.social · 13/08/2025
This year at #CCN25 we showed the importance of OOD evaluation to adjudicate between brain models. Our results demonstrate these trivial but key facts : - high encoding accuracy ≠ functional convergence - human brain ≠ NES console ≠ 4-layers CNN - videogames are cool w/ @lune-bellec.bsky.social 🙌
073
Reposted by 🌙 Lune Bellec
Bratislav Misic @misicbata.bsky.social · 08/08/2025
Mapping cerebral blood perfusion and its links to multi-scale brain organization across the human lifespan | doi.org/10.1371/jour... How does blood perfusion map onto canonical features of brain structure and function? @asafarahani.bsky.social investigates @plosbiology.org ⤵️
15616
Reposted by 🌙 Lune Bellec
Courtois Project on Neuronal Modelling @cneuromod.ca · 07/08/2025
In 2019, the CNeuroMod team and 6 participants began a massive data collection journey: twice-weekly MRI scans for most of 5 years. Data collection is now complete! 1/🧵
Poster titled "Neuromod: The Courtois Project on Neuronal Modelling" with logos from Université de Montréal and the Centre de recherche de l'Institut universitaire de gériatrie de Montréal.

Large bold text reads:
6 BRAINS – 987H-fMRI – 18 TASKS
Followed by the subtitle:
Naturalistic & Controlled – Multimodal / Perception + Action
Each letter in "18 TASKS" contains thumbnails from various visual tasks.

The central table summarizes 32 datasets grouped by primary domain (Vision, Audition, Language, Memory, Action, Other). For each dataset, the table indicates which stimulus modalities were used (Vision, Speech, Audio, Motion), what responses were collected (Physiology, Eye tracking, Explanations, Actions), and how many sessions and subjects were scanned. The overall visual style is playful and bold, with rainbow colors for modality types and rich iconography indicating data types.
1149
Reposted by 🌙 Lune Bellec
Russ Poldrack @russpoldrack.org · 05/08/2025
Automated testing with GitHub Actions - the latest in my Better Code, Better Science series russpoldrack.substack.com/p/automated-...
russpoldrack.substack.com
Automated testing with GitHub Actions
Better Code, Better Science: Chapter 4, Part 7
0101
Reposted by 🌙 Lune Bellec
OHBM Sustainability & Environmental Action SIG (SEA-SIG) @ohbmenvironment.bsky.social · 01/08/2025
🥁... we are SO happy to officially announce that registration is now OPEN for our OHBM Virtual Satellite Meeting, taking place September 10-12! This has been a major goal of the SEA-SIG for a while now and we're so excited to show you what we've been working on! 🌱🌎✨🧠
062
Reposted by 🌙 Lune Bellec
Courtois Project on Neuronal Modelling @cneuromod.ca · 30/07/2025
New CNeuroMod-THINGS open-access fMRI dataset: 4 participants · ~4 000 images (720 categories) each shown 3× (12k trials per subject)· individual functional localizers & NSD-inspired QC . Preprint: arxiv.org/abs/2507.09024 Congrats Marie St-Laurent and @martinhebart.bsky.social !!
four brain maps showing noise ceiling estimates in response to image presentation
13517
Reposted by 🌙 Lune Bellec
You’d prefer an astronaut, PhD @iamdamion.bsky.social · 28/07/2025
1/11 Very excited to say that our preprint, Precision functional mapping reveals less inter-individual variability in the child vs. adult human brain, is up on biorxiv! www.biorxiv.org/content/10.1...
biorxiv.org
Precision functional mapping reveals less inter-individual variability in the child vs. adult human brain
Human brain organization shares a common underlying structure, though recent studies have shown that features of this organization also differ significantly across individual adults. Understanding the...
13210
Reposted by 🌙 Lune Bellec
hardmaru @hardmaru.bsky.social · 13/07/2025
Google’s Gemini 2.5 paper has 3295 authors arxiv.org/abs/2507.06261
7586
Reposted by 🌙 Lune Bellec
Feilong Ma @feilong.bsky.social · 11/07/2025
Excited to share our News&Views on Kamitani Lab's NatComputSci paper! Their neural code converter enables transformation of brain activity patterns across individuals, and it doesn't need shared stimuli or connectivity information! www.nature.com/articles/s43...
nature.com
Advancing neural decoding with deep learning - Nature Computational Science
A recent study introduces a neural code conversion method that aligns brain activity across individuals without shared stimuli, using deep neural network-derived features to match stimulus content.
0166
Reposted by 🌙 Lune Bellec
Cole Hurwitz @colehurwitz.bsky.social · 11/07/2025
Excited to co-organize our NeurIPS 2025 workshop on Foundation Models for the Brain and Body! We welcome work across ML, neuroscience, and biosignals — from new approaches to large-scale models. Submit your paper or demo! 🧠 🧪 🦾
081
Reposted by 🌙 Lune Bellec
Shahab Bakhtiari @shahabbakht.bsky.social · 10/07/2025
This is why I think the platonic rep hypothesis doesn’t apply to brain-ANN alignment, since most existing (functional?) models are implicitly or explicitly trained to mimic humans. The assumption of PRH is that the networks are trained independently which doesn’t hold in brain-ANN comparisons.
141
🌙 Lune Bellec @lune-bellec.bsky.social · 27/06/2025
Using intracranial brain recordings to guide representations in a vision-action AI model leads to faster and better training arxiv.org/abs/2506.208...
arxiv.org
Brain2Model Transfer: Training sensory and decision models with human neural activity as a teacher
Transfer learning enhances the training of novel sensory and decision models by employing rich feature representations from large, pre-trained teacher models. Cognitive neuroscience shows that the hum...
041
Reposted by 🌙 Lune Bellec
Shawn Manuel @shwnmnl.bsky.social · 25/06/2025
Just wrapped up my first real foray into analyzing brain data at Brainhack School 2025 a couple weeks ago 🧠💻 I focused on comparing fMRI techniques on a single subject, using fear as a case study. school-brainhack.github.io/project/many...
school-brainhack.github.io
The Many Faces of Fear: Univariate, Predictive and Representational …
Brainhack School
121
Reposted by 🌙 Lune Bellec
Bratislav Misic @misicbata.bsky.social · 20/06/2025
Benchmarking methods for mapping functional connectivity in the brain | doi.org/10.1038/s415... What is the best measure of functional connectivity (FC)? led by @zhenqi.bsky.social in @natmethods.nature.com ⤵️
48744
Reposted by 🌙 Lune Bellec
Catherine Lebel @catherinealebel.bsky.social · 20/06/2025
Research assistant job posting is live! Come join us in Calgary and be part of a supportive, interdisciplinary team. careers.ucalgary.ca/jobs/1631661...
careers.ucalgary.ca
Research Assistant, Radiology in Calgary, AB, Ca...
Research Assistant, Radiology in Calgary, AB, Ca...
11010
Reposted by 🌙 Lune Bellec
Avishek ghosh @avishekcolours.bsky.social · 19/06/2025
Few originals available Anyone interested can DM me.
2498
Reposted by 🌙 Lune Bellec
Open Science Community Amsterdam @oscamsterdam.bsky.social · 12/06/2025
#OSCAwards2025 | open access, data, materials & software: OpenMReye: camera-free magnetic resonance-based eye tracking for research and clinical applications 👀🩻 by @matthiasnau.bsky.social Find out more: github.com/DeepMReye/
github.com
DeepMReye
DeepMReye is a software package for magnetic resonance-based eye tracking for (f)MRI experiments. Contact: m.nau[at]vu.nl & markus.frey1[at]gmail.com - DeepMReye
0116
Reposted by 🌙 Lune Bellec
Hao-Ting Wang @haotingwang.bsky.social · 12/06/2025
Hi friends, I have news! Giga connectome, a BIDS app for post-fMRIPrep connectome extraction, is now in @joss-openjournals.bsky.social 🎉 Thanks to @remigau.bsky.social, @clarken.bsky.social, Quentin Dessain, and @lune-bellec.bsky.social for working on this together
1103
Reposted by 🌙 Lune Bellec
hardmaru @hardmaru.bsky.social · 12/06/2025
Text-to-LoRA: Instant Transformer Adaption arxiv.org/abs/2506.06105 Generative models can now produce text, image, video. They should also be able to generate models! We trained a Hypernetwork to generate new task-specific LoRA models by simply giving it a description of the task as a text prompt.
1459
Reposted by 🌙 Lune Bellec
Shahab Bakhtiari @shahabbakht.bsky.social · 12/06/2025
AI may still need some neuroscience: "AI systems will not acquire the flexibility and adaptability of human intelligence until they can actually learn like humans do, shining brightly with their own light rather than observing a shadow from ours." 🧠🤖 sergeylevine.substack.com/p/language-m...
sergeylevine.substack.com
Language Models in Plato's Cave
Why language models succeeded where video models failed, and what that teaches us about AI
1327
Reposted by 🌙 Lune Bellec
hardmaru @hardmaru.bsky.social · 10/06/2025
Darwin Gödel Machine: A Commentary on Novelty and Implications. antomon.github.io/posts/darwin...
antomon.github.io
Darwin Gödel Machine: A Commentary on Novelty and Implications – Random Bits of Knowledge
Autonomous, self-improving artificial intelligence has long been a theoretical aspiration, yet practical implementations have remained elusive because formal proof–based self-modification is computati...
0102
Reposted by 🌙 Lune Bellec
Mila - Institut québécois d'IA @mila-quebec.bsky.social · 03/06/2025
With Mila’s support, our Founder and Scientific Advisor @yoshuabengio.bsky.social is launching @law-zero.bsky.social, a nonprofit organization committed to advancing research and developing technical solutions for safe-by-design AI systems.
0111
Reposted by 🌙 Lune Bellec
LawZero - LoiZéro @law-zero.bsky.social · 03/06/2025
Tout système d'IA de pointe devrait reposer sur un engagement essentiel : celui de préserver la joie et les aspirations humaines. Aujourd’hui, nous lançons LoiZéro, une organisation à but non lucratif visant à concevoir des systèmes d'IA sécuritaires. loizero.org
01910
Reposted by 🌙 Lune Bellec
Avery HW Ryoo @averyryoo.bsky.social · 06/06/2025
New preprint! 🧠🤖 How do we build neural decoders that are: ⚡️ fast enough for real-time use 🎯 accurate across diverse tasks 🌍 generalizable to new sessions, subjects, and even species? We present POSSM, a hybrid SSM architecture that optimizes for all three of these axes! 🧵1/7
25524
🌙 Lune Bellec @lune-bellec.bsky.social · 05/06/2025
More evidence on the fact the fact that fine tuning AI sound processing models reshapes representations in a meaningful way. Perhaps unsurprising- it's just distillation of a big model in a small model, but i often get a lot of skepticism on this idea. arxiv.org/abs/2506.038...
arxiv.org
Brain-tuned Speech Models Better Reflect Speech Processing Stages in the Brain
Pretrained self-supervised speech models excel in speech tasks but do not reflect the hierarchy of human speech processing, as they encode rich semantics in middle layers and poor semantics in late la...
030
🌙 Lune Bellec @lune-bellec.bsky.social · 04/06/2025
new brain foundation model study, this time with a graph neural net architecture and fMRI, looking at a range of disorders and downstream tasks. arxiv.org/abs/2506.020... #neuroAI
arxiv.org
A Brain Graph Foundation Model: Pre-Training and Prompt-Tuning for Any Atlas and Disorder
As large language models (LLMs) continue to revolutionize AI research, there is a growing interest in building large-scale brain foundation models to advance neuroscience. While most existing brain fo...
0113
Reposted by 🌙 Lune Bellec
Tamara Vanderwal @vanderlab.bsky.social · 04/06/2025
New preprint from the Hasson Lab🪄Delineates coupling b/w regions within the language network AND shows the elements of language that connect them. Led by @ahmadsamara.bsky.social; thanks @samnastase.bsky.social Zaid Zada & Uri Hasson. 💥 www.biorxiv.org/content/10.1...
biorxiv.org
1177
Reposted by 🌙 Lune Bellec
Carrisa V. Cocuzza, PhD (she/her) @carrisacocuzza.bsky.social · 30/05/2025
🚨Preprint!🚨 So excited to share my 1st major study as a postdoc at @holmeslab-bhi.bsky.social!🤘 www.biorxiv.org/content/10.1... Using a transdiagnostic framework, we found that brain network dynamics were able to discriminate individualized psychiatric symptom profiles with high accuracy 🧵1/9👇
23419
Reposted by 🌙 Lune Bellec
Teon ⁂ @teonbrooks.com · 29/05/2025
just watched a very great overview of the latest updates in Jupyterlab and Jupyterlite - Improved code consoles, RTC, - Support for R via xeus-R; consoles - Improvements with xeus-python with some pip magic - JupyterAI and Jupyterlite-AI, with options for in-browser LLMs - hybrid kernels 🤯 (cont ⬇️)
youtu.be
Jupyter Frontends & JupyterLite updates | Jupyter Open Studio Day 2025
YouTube video by Jeremy Tuloup
142
Reposted by 🌙 Lune Bellec
Caterina Gratton @caterinagratton.bsky.social · 28/05/2025
Excited to announce that our paper (led by @hyejinjadelee.bsky.social & Derek Smith) is out in @nathumbehav.nature.com go.illinois.edu/Lee2025_NHB We use 36 days of testing in 4 inhibitory control tasks to examine the precision of inhibitory control measures in *individuals* and how they vary 🧵👇
go.illinois.edu
Precise individual measures of inhibitory control
Nature Human Behaviour - Collecting an extensive publicly available dataset on four inhibitory control tasks, Gratton et al. show that more than 1,000 trials per participant are necessary to reduce...
15319