Julien Bastin
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julienbastin.bsky.social
Julien Bastin
@julienbastin.bsky.social
Cognitive neuroscientist
decision-making, intracerebral recordings in epilepsy or ocd, reinforcement learning, insula, orbitofrontal cortex, mood, effort, value, choice
Reposted by Julien Bastin
Registrations for the Symposium for the Biology of decision making (SBDM) in Lyon 2025 are finally open! sbdm2025.github.io Please spread the message!
April 8, 2025 at 6:18 PM
Reposted by Julien Bastin
🚨 !!! New preprint !!! 🚨
Excited to share my student @samibeaumont’s latest work, where we demonstrate that inference over putative strategies is sufficient to fully accounts for human adaptation across diverse statistical contexts, when reinforcement learning cannot. 🧠🟦 🧠🤖
#Neuroscience #Preprint
April 4, 2025 at 4:25 PM
Reposted by Julien Bastin
A must read paper in Nature Human Behavior for anyone in the fields of #EEG #neuroscience #neurology #psychology or #medicaldevice

Interested to know what people agree and disagree with? There are several things that they say are years away that are already happening

www.nature.com/articles/s41...
One hundred years of EEG for brain and behaviour research - Nature Human Behaviour
On the centenary of the first human EEG recording, more than 500 experts reflect on the impact that this discovery has had on our understanding of the brain and behaviour. We document their priorities...
www.nature.com
November 21, 2024 at 4:59 PM
@hritz.bsky.social hi could you add me to the cog. Control sp. please ?
Thanks 🙏
We just showed with a student with intracranial human recordings that an optimal level of theta is required for task switching
December 3, 2024 at 1:31 PM
@guidomeijer.com hi, could you add me to the sp. On system neuro / neuronal population fans, please ?
🙏
December 3, 2024 at 10:17 AM
Reposted by Julien Bastin
Happy 🎉 to share that our article 🚨, "Lateral Prefrontal Theta Oscillations Causally Drive a Computational Mechanism Underlying Conflict Expectation and Adaptation," has been published 📚 today in NatureComms. (1/8)
doi.org/10.1038/s414....
Lateral prefrontal theta oscillations causally drive a computational mechanism underlying conflict expectation and adaptation - Nature Communications
Martínez-Molina et al. utilized fMRI, EEG-TMS, and cognitive modeling to reveal the mechanisms behind expectation and adaptation to upcoming conflicting events, demonstrating the causal role of theta ...
doi.org
November 20, 2024 at 9:03 PM
Reposted by Julien Bastin
Opposite responses to reward with dopamine (up) and serotonin (down) in nucleus accumbens boost reinforcement learning. Impressive work in Nature:

www.nature.com/articles/s41...
Opponent control of reinforcement by striatal dopamine and serotonin - Nature
Nature - Opponent control of reinforcement by striatal dopamine and serotonin
www.nature.com
November 25, 2024 at 8:24 PM
Reposted by Julien Bastin
Neurons in the human brain multitask! Shared neurons fire in bursts for multiple stimuli, but their firing order shifts to create stimulus-specific sequences. A clever, dynamic way the brain encodes complex info.

www.nature.com/articles/s41...
Neuronal sequences in population bursts encode information in human cortex - Nature
The temporal order of neuronal firing within bursts of population spiking in the human anterior temporal lobe is dependent on the category as well as the identity of the individual stimulus, and this ...
www.nature.com
November 28, 2024 at 6:06 PM
@romanececchi.bsky.social
Welcome romane !!
November 28, 2024 at 6:04 PM
Reposted by Julien Bastin
The craziest paper I have ever done is this thought experiment with Albert Gidon and Matt Larkum.

In the first journal, reviewer 1 recommended that we should not try to publish this; reviewer 2 called it "wacky". Thanks for the motivation: A sequel is coming up!

journals.plos.org/plosbiology/...
Does brain activity cause consciousness? A thought experiment
The authors of this Essay examine whether action potentials cause consciousness in a three-step thought experiment that assumes technology is advanced enough to fully manipulate our brains.
journals.plos.org
November 20, 2024 at 12:41 PM
Reposted by Julien Bastin
I was unprepared for how much of my mid-career academic life would be spent evaluating others' work rather than creating my own. 🧵 1/
November 17, 2024 at 3:38 PM
very proud of this (very) long study On behavioral switching and theta oscillations in the prefrontal-subthalamic circuit that is now out in nature commun.

www.nature.com/articles/s41...

🧠🟦 🧠🤖
Optimal level of human intracranial theta activity for behavioral switching in the subthalamo-medio-prefrontal circuit - Nature Communications
Direct electrophysiological recordings in the human prefronto-subthalamic circuit show that behavioral switching requires an optimal level of theta activity to be successful, which is well accounted f...
www.nature.com
November 18, 2024 at 6:51 PM
Reposted by Julien Bastin
New nat. commun. Paper by Cecchi et Al. 2024 on Causal involvement of anterior insulate and ventrimedial prefrontal cortex during risky choices

rdcu.be/dSn7I

Four years of work: congrats to romane: well done !!
August 29, 2024 at 7:59 PM
We are also looking for a PhD (36 to 48 months) to study single-neuron correlates of human decision-making processes .
🧠🟦 🧠🤖
euraxess.ec.europa.eu/jobs/190454
January 30, 2024 at 12:52 PM

The laboratory is recruiting a post-doc (18 months, renewable) to study how epileptic activity interferes with decision-making processes by combining intracerebral recordings with value-based choice tasks.
🧠🟦 🧠🤖
euraxess.ec.europa.eu/jobs/137961
January 30, 2024 at 9:53 AM
Reposted by Julien Bastin
Our last paper out on the role of human thalamus during reinforcement learning is out 😊

www.nature.com/articles/s41...
Human thalamic low-frequency oscillations correlate with expected value and outcomes during reinforc...
The functional role of the human thalamus in reinforcement learning is debated. Here, using intra-thalamic recordings in humans, the authors report that thalamic low-frequency oscillations correlate w...
www.nature.com
December 22, 2023 at 3:52 PM
A themed collection that showcases research examining neural mechanisms underlying cognitive functions in people affected by neurological conditions out in Nat. Comm.
Happy to see that the collection features our paper on thalamus role during learning
🧠🟦 🧠🤖
www.nature.com/collections/agjheebcbe
January 25, 2024 at 7:49 AM
Reposted by Julien Bastin
#academicSky #PsychSciSky #cogsci

Open science at work
January 20, 2024 at 10:40 AM
Our last paper out on the role of human thalamus during reinforcement learning is out 😊

www.nature.com/articles/s41...
Human thalamic low-frequency oscillations correlate with expected value and outcomes during reinforc...
The functional role of the human thalamus in reinforcement learning is debated. Here, using intra-thalamic recordings in humans, the authors report that thalamic low-frequency oscillations correlate w...
www.nature.com
December 22, 2023 at 3:52 PM
last messages before landing to India for a three weeks yoga retreat 😊
December 22, 2023 at 3:49 PM
We demonstrate a causal relationship between neural activities in the ventromedial prefrontal cortex and the anterior insula and choices using intracranial electrical stimulation (iES) on epileptic patients. iES effects are contingent on the exact stimulation site within each brain region.
Direct stimulation of anterior insula and ventromedial prefrontal cortex disrupts economic choices. 🧠🟦 🧠🤖

www.biorxiv.org/content/10.1...

sciencecast.org/casts/13spgf...
December 13, 2023 at 9:47 PM
Reposted by Julien Bastin
Direct stimulation of anterior insula and ventromedial prefrontal cortex disrupts economic choices. 🧠🟦 🧠🤖

www.biorxiv.org/content/10.1...

sciencecast.org/casts/13spgf...
December 13, 2023 at 3:48 PM