iiinova — where your digital self keeps evolving

Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

This was joint work with Jeremy Rapin, Yohann Benchetrit, Teon Brooks, Katelyn Begany, Josephine Raugel, Hubert Banville and Jean-Rémi King. Thanks to Elisa_Cascardi, Diego Marcos, Dominic Giardini, Meta AI, and the open-source & neuroscience communities on which this work builds 🙏

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

👩‍💻 All code, weights & demo are open. Find it useful — or mistaken in some conditions? Let us know, new test cases can only help improving this effort.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

🧠 This effort is a step toward a foundation model of the human brain. Much remains to be understood, but we hope this opens a path for neuroscience, AI, and medical research alike.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

🗺️ By ablating modalities we can further map how vision, audition & language integrate across cortex. Largest multimodal gains at the temporo-parietal-occipital junction — a known multisensory hub. RGB overlays reveal the topography of sensory convergence.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

🔍 What has the model learned? ICA on its weights reveals 5 components mapping onto known functional networks: primary auditory, language, motion, default mode & visual. The brain's functional organization — rediscovered from naturalistic data alone.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

💬 Same for language: speech vs. non-speech, emotional vs. physical pain, sentences vs. word-lists — all replicated in-silico. It recovers subtle phenomena: Broca's lateralization, orthography in the VWFA, syntax in STG — without training on these tasks.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

👁️ Can we do useful experiments with TRIBE v2? Yes: classic paradigms replicate in-silico! Flash faces, places, bodies, words to the model — TRIBE v2 zero-shot recovers the FFA, PPA, EBA & VWFA, matching decades of empirical results.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

🎯 Without retraining, the predictions of TRIBE v2 are more correlated with group-averaged brain responses than almost any individual fMRI scan! A short finetuning step vastly improves over linear models trained, from scratch, on each individual.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

📈 TRIBE v2 accurately predicts brain activity across cortical & subcortical regions, significantly better than standard linear models. Encoding accuracy follows a log-linear scaling law with data volume — no plateau in sight.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

❓How does it work? Stemming from our v1, which won the Algonauts 2025 challenge, it combines video, audio & language embeddings to predict brain activity for any brain, then adapts to each individual.

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Stéphane d’Ascoli @sdascoli.bsky.social · 26/03/2026

🚨 We're very happy to introduce TRIBE v2: a foundation model of the brain's responses to sight, sound & language. 📄 Paper: ai.meta.com/research/pub... ▶️ Demo: aidemos.atmeta.com/tribev2/ 💻 Code: github.com/facebookrese... 🤗 Model: huggingface.co/facebook/tri...

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Reposted by Stéphane d’Ascoli

Joséphine Raugel @josephine-raugel.bsky.social · 26/02/2025

⚡️Check out our workshop tomorrow at @lpiparis.bsky.social, great speakers (@gabrielpeyre.bsky.social, @sdascoli.bsky.social, @samillingworth.com & many more) will cover Theory and Applications of Generative AI + Connexions with neuroscience 🧠 And there's food 🍰 ➡️ genai-conference-website.vercel.app

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Reposted by Stéphane d’Ascoli

Lucy (Mingfang) Zhang @lucyzmf.bsky.social · 18/02/2025

Our paper from AI at Meta and @bcbl.bsky.social is out on arxiv 🔥 “From Thought to Action: How a Hierarchy of Neural Dynamics Supports Language Production” arxiv.org/abs/2502.07429 How does the brain transform a thought into a sequence of motor actions? Results summarized in 🧵1/8

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Reposted by Stéphane d’Ascoli

Jean-Rémi King @jeanremiking.bsky.social · 15/01/2025

🚨Job alert (Please RT) What: masters internship and/or PhD positions Where: Rothschild Foundation Hospital (Paris, France) Topic: AI and Neuroscience Supervised by: Pierre Bourdillon and myself Apply here: forms.gle/KKnea2QAjhAe... Deadline: Feb 5th

forms.gle

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