Richard Naud

What are serotonin neurons trying to tell the brain? Our work on the question has been so much fun (@JCBeique , @JermiahYCohen, @grossmancooper ). Check out @efharkin_ 's exciting paper biorxiv.org/content/10.110… nature.com/articles/s4158…

Our study on the impact of altered serotonin (5-HT) signalling on developing sensory cortex is now live @NatureComms We use longitudinal in vivo imaging of 5-HT & neural activity to show that this neuromodulator is buffered in early life to promote bottom-up instruction.

New results! Working memory is read out via a theta (3-6 Hz) traveling wave sweeping across cortex. Working memory readout varies with frontal theta rhythms biorxiv.org/content/10.110… #neuroscience

🚨IT'S HAPPENING🚨 a woman who cannot speak now speaks through her brain, in real time, with her own voice. no typing, delay, or sounds made. just neural intent to streaming speech this isn’t prediction. it’s embodiment 1/

セロトニン神経の活動を説明する上で「強化子（好子）の予測に対するアプローチ」という考え方を示した論文。 予想外の好子には、セトロニンの活動が活発になる一方で、予想外の嫌子にはセロトニンの活動は活発にならない。 いやはや。実に生物的だし、ABAでも重要な視点。 nature.com/articles/s4158…

World renowned Canadian leaders in #AI, Professor @Yoshua_Bengio, and #QuantumComputing, Dr. Martin Laforest, shared insights with the G7 Data Protection and Privacy Authorities Roundtable into these rapidly evolving technologies. #G7privacy

PhD/Postdoc position in Computational Neuroscience at the Institute of Neuroinformatics (UZH and ETH Zürich): we are investigating the neural circuits underlying perception and learning in uncertain environments: ini.uzh.ch/en/research/gr… @BernsteinNeuro @UZH_en @ETH_en

Today marks a big milestone for me. I'm launching @LawZero_, a nonprofit focusing on a new safe-by-design approach to AI that could both accelerate scientific discovery and provide a safeguard against the dangers of agentic AI.

Out now! Sharing the old tweeprint nature.com/articles/s4159…

A theme is emerging: attempts to reduce brain functions to a few things (like an ion channel) aren’t working. A similar story exists for anesthesia - knockout all the putative things and anesthesia still works. “Lists of things” is not the way. The alternative? /1

Our new paper is out in Science. What is the synaptic plasticity rule in the brain, we asked. It turns out there are multiple, even within individual neurons. Congrats Jake! science.org/doi/10.1126/sc…

After 7 years, thrilled to finally share our #MICrONS functional connectomics results! We recorded activity from ~75K neurons in visual cortex in a single mouse, then mapped its wiring using electron microscopy. To systematically characterize neuron function, we built the first…

Research has shown that serotonin neurons represent a "prospective code for value," conveying information about anticipated outcomes and the pace at which those expectations evolve. nature.com/articles/s4158…

Insight into place field formation in general, and specifically how the #hippocampus adaptively remaps for flexible goal-directed navigation nature.com/articles/s4159…

Our April issue is now live! nature.com/neuro/volumes/…

I'm always impressed when I read an article about work I was involved in that summarizes better than what I feel capable of : brainpost.co/weekly-brainpo…

In 1956, 26-year-old Edsger Dijkstra invented a classic path-finding algorithm while out with his fiancée at a café in Amsterdam. It all happened in his head: “Without pencil and paper you are almost forced to avoid all avoidable complexities,” he said. quantamagazine.org/computer-scien…

Masaki Kashiwara has won the 2025 Abel Prize “for his fundamental contributions to algebraic analysis and representation theory.”