Mael Lebreton
mael-lebreton.bsky.social
Mael Lebreton
@mael-lebreton.bsky.social
Cognitive Scientist interested in Human Decision-Making.
Researcher at CNRS; Professor at Paris School of Economics;
Assistant Professor at University of Geneva
https://sites.google.com/site/maellebreton/home
Reposted by Mael Lebreton
Very cool study showing that "apparent" asymmetric update in reinforcement learning can emerge from Bayes optimal principles by Prakhar Godara in @pnas.org

www.pnas.org/doi/abs/10.1...
Apparent learning biases emerge from optimal inference: Insights from master equation analysis | PNAS
Recent studies [S. Palminteri, G. Lefebvre, E. J. Kilford, S. J. Blakemore, PLoS Comput. Biol. 13, e1005684 (2017); G. Lefebvre, M. Lebreton, F. Me...
www.pnas.org
October 13, 2025 at 12:03 PM
Reposted by Mael Lebreton
Lucky for you, lazy people at #RLDM2025, two of the best posters have apparently been put side-by-side: go check @maevalhotellier.bsky.social and @constancedestais.bsky.social posters!
June 11, 2025 at 9:20 AM
Reposted by Mael Lebreton
We have a PhD position for an upcoming project in metacognition research in Potsdam / Berlin. A great opportunity for those interested in cognitive modeling of confidence and EEG.

More information at coconeuro.github.io/phd2025

Kindly share this opportunity with potential candidates - Thanks!
Computation and Cognition @ HMU Potsdam
Computation and Cognition @ HMU Potsdam
coconeuro.github.io
June 4, 2025 at 11:07 AM
Reposted by Mael Lebreton
New in Nature MentalHealth! with Vrizzi, Najar, Lemogne, and @mael-lebreton.bsky.social

We tested whether behavioural and RL-based model parameters are test-retest reliable and predict mental health traits.

The result? Not really.

A cautionary tale for comp. psychiatry
doi.org/10.1038/s442...
Behavioral, computational and self-reported measures of reward and punishment sensitivity as predictors of mental health characteristics - Nature Mental Health
Reinforcement learning task-based behavioral and computational measures displayed low test–retest reliability at the individual level. Also in contrast to self-assessed personality measures, behaviora...
doi.org
May 26, 2025 at 6:34 PM
Reposted by Mael Lebreton
🚨 New preprint on bioRxiv!

We investigated how the brain supports forward planning & structure learning during multi-step decision-making using fMRI 🧠

With A. Salvador, S. Hamroun, @mael-lebreton.bsky.social & @stepalminteri.bsky.social

📄 Preprint: submit.biorxiv.org/submission/p...
bioRxiv Manuscript Processing System
Manuscript Processing System for bioRxiv.
submit.biorxiv.org
April 16, 2025 at 10:03 AM
Reposted by Mael Lebreton
A working to our fMRI study dissociating the functional role of peri-hippocampal and parietal cortex in model-based reinforcement learning (with @fabiencerrotti.bsky.social @mael-lebreton.bsky.social et al).

www.biorxiv.org/content/10.1...
April 22, 2025 at 8:52 AM
Reposted by Mael Lebreton
post doc position on "affective social learning" in Andreas Olsson's group at Karolinska Institute. Recommended! ki.varbi.com/en/what:job/...
Postdoctoral Researcher in affective learning and decision-making
Do you want to contribute to better health for everyone? Our research group, led by Andreas Olsson at Karolinska Institutet in Stockholm, is seeking a qualified and motivated postdoctoral researcher.
ki.varbi.com
April 5, 2025 at 3:08 PM
Reposted by Mael Lebreton
We're recruiting for new postdoc and RA positions on our @erc.europa.eu project "ConsciousComputation"

To apply and for more details, please see:

RA: www.ucl.ac.uk/work-at-ucl/...

Postdoc: www.ucl.ac.uk/work-at-ucl/...

Very happy to chat to anyone interested! 🧠🧪
UCL – University College London
UCL is consistently ranked as one of the top ten universities in the world (QS World University Rankings 2010-2022) and is No.2 in the UK for research power (Research Excellence Framework 2021).
www.ucl.ac.uk
March 5, 2025 at 1:29 PM
Reposted by Mael Lebreton
Résultats de l'enquête TIMSS 2023 sur le niveau des élèves de CM1 en maths et en sciences.
Messages-clés :
1) le niveau des élèves français est toujours très inquiétant.
🧵
December 4, 2024 at 10:07 AM