Maxime Beau

@maxime-beau.bsky.social

@princeton.edu postdoc with @carlosbrody.bsky.social. @ucl.ac.uk alumnus. Into decision-making, cerebellum, #Neuropixels, ML applied to neuro, open-source dev |🇪🇺🇫🇷🇨🇭|🥋🧑‍🍳 ☕️

We’re excited to launch the Princeton Neuroscience Institute Open Science award! Apply or nominate your peers until August 14th!

Julie Fabre@juliefabre.bsky.social · 3w ago

We're launching the PNI Open Science Awards at @princetonneuro.bsky.social, a pilot program to recognize the tools, datasets, and protocols that advance open, reproducible neuroscience with @maxime-beau.bsky.social. This work is foundational to modern neuroscience but rarely gets formal credit.

Want to explore connectivity & projection patterns yourself, like we do here? We released brain_street_view to let you pick any injection site in the Allen Connectivity Atlas and visualize where it projects in your favorite region of interest: github.com/Julie-Fabre/brain_street_view

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Julie Fabre@juliefabre.bsky.social · 4mo ago

How do the basal ganglia turn what you see into what you do? New preprint w/ @kenneth-harris.bsky.social, @flickerfusion.bsky.social & @carandinilab.net: we recorded across striatum, GPe & SNr in a Go/NoGo task. Striatum encodes which stimulus, GPe & SNr encode action. 🧵 biorxiv.org/content/10.6...

Fred Ramsdell was parked at a campground in Montana on Monday when his wife suddenly started shouting. He first thought that maybe she had seen a grizzly bear. Instead, she had regained cell service and had seen a flood of text messages with the same news. “You just won the Nobel Prize!” she yelled.

Winning a Nobel Prize Interrupted His Off-the-Grid Vacation

Fred Ramsdell found out about his Nobel Prize nearly 12 hours after it was announced because he was on vacation in the Rockies.

nyti.ms

How does the brain decide? 🧠 Our new @nature.com paper shows that neural activity switches from an 'evidence gathering' to a 'commitment' state at a precise moment we call nTc. After nTc, new evidence is ignored, revealing a neural marker for the instant when the mind is made up. rdcu.be/eGUrv

Transitions in dynamical regime and neural mode during perceptual decisions - Nature

Simultaneous recordings were made of hundreds of neurons in the rat frontal cortex and striatum, showing that decision commitment involves a rapid, coordinated transition in dynamical regime and neura...

nature.com

In neuroscience, we often try to understand systems by analyzing their representations — using tools like regression or RSA. But are these analyses biased towards discovering a subset of what a system represents? If you're interested in this question, check out our new commentary! Thread:

What do representations tell us about a system? Image of a mouse with a scope showing a vector of activity patterns, and a neural network with a vector of unit activity patterns
Common analyses of neural representations: Encoding models (relating activity to task features) drawing of an arrow from a trace saying [on_____on____] to a neuron and spike train. Comparing models via neural predictivity: comparing two neural networks by their R^2 to mouse brain activity. RSA: assessing brain-brain or model-brain correspondence using representational dissimilarity matrices

🚀 We are excited to share that bombcell is now available in Python! 🐍 Automatically sort your units into good/MUA/noise/non-somatic using quality metrics and interpretable & adjustable classification thresholds. pip install and play around with our toy dataset: 🔗 github.com/Julie-Fabre/...

GitHub - Julie-Fabre/bombcell: Automated quality control, curation and neuron classification of spike-sorted electrophysiology data

Automated quality control, curation and neuron classification of spike-sorted electrophysiology data - Julie-Fabre/bombcell

github.com

I really recommend sending your students to the Paris Spring School, many imaging and ephys techniques are covered in pretty good depth and the atmosphere is consistently fantastic every year! And in such a setting! parisneuro.ovh

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Desdemona Fricker@desdemonafricker.bsky.social · last yr.

Running Paris Spring School practicals this week! The fabulous @maxime-beau.bsky.social is teaching the ins and outs of Neuropixels recordings, with help from the brilliant Marin Dauguet and all the team. @upcite.bsky.social @sppin-cnrs.bsky.social #neuroscience 👩‍🔬🧠 parisneuro.ovh

we're crowd-sourcing a searchable repository of tangible benefits stemming from federally-funded research. Come enjoy the great stories; or send in an idea; or volunteer to join the team. publicusaresearchbenefits.com please share and re-share so we get more great stories in there!

Searchable database of tangible benefits that federally-funded research gave us.

A crowd-sourced site. Health and Well-being. National Security. Prosperity.

publicusaresearchbenefits.com

Thrilled to share our state-of-the-art method for in vivo cell-type classification and brain region localization, NEMO, which is now now a spotlight at @iclr-conf.bsky.social ! We use NEMO to characterize the electrophysiological diversity of cell-types across the entire mouse brain. 🐭 🧪 🧠

Two UCL researchers, including Dr Julie Fabre (@uclqsion.bsky.social) have been named as Schmidt Science Fellows, an award given to 32 exceptional early career researchers worldwide. Congratulations to both Dr @juliefabre.bsky.social & Dr Almarri on this incredible achievement! 👏

UCL early career researchers selected as 2025 Schmidt Science Fellows

Two UCL researchers have been named as Schmidt Science Fellows, an award only given to 32 exceptional early career researchers worldwide.

buff.ly

How do we associate the flavors we experience during a meal 🍽️😋 with postingestive effects like food poisoning 🤢🤮 that arise much later? Our answer in @nature.com this week: Illness signals from the gut reactivate and strengthen flavor representations in the amygdala. 📄: nature.com/articles/s41...

A neural mechanism for learning from delayed postingestive feedback - Nature

Illness signals from the gut reactivate and strengthen flavour representations in the amygdala to support learning from delayed postingestive feedback.

nature.com

First off, Bombcell is a MATLAB package (python version coming) developed by @juliefabre.bsky.social. It uses several metrics, like waveform shape, spike amplitudes and drift, to determine whether a detected unit is noise, multi-unit activity, axonal or a single neuron. github.com/Julie-Fabre/...

GitHub - Julie-Fabre/bombcell: Automated quality control, curation and neuron classification of spike-sorted electrophysiology data

Automated quality control, curation and neuron classification of spike-sorted electrophysiology data - Julie-Fabre/bombcell

github.com

1/7 Our paper on individual variability in decision-making is finally out in @nature.com! Inspired by the classic work by Mante and Sussillo, we trained many rats to solve context-dependent decision-making, and we found that different brains use different neural mechanisms to solve the same task!

Individual variability of neural computations underlying flexible decisions - Nature

Behavioural experiments to study decision-making in response to context-dependent accumulation of evidence provide testable models that are consistent with the heterogeneity in neural signatures among...

nature.com

The International Brain Laboratory reproducibility platform paper is now published at eLife. An amazing effort by many different labs and individuals to understand and improve the reproducibility of electrophysiological measurements in mice. 🧠

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