Cognitive neuroscientist - I'm doing science and I'm still alive
** brain oscillations, perceptual bias, time perception **
Laetitia Grabot
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A must-read for alpha aficionados!
Thanks for the invitation @timingresforum.bsky.social! It was great presenting my latest research about priors in duration perception! The preprint is here ➡️https://www.biorxiv.org/content/10.64898/2026.01.07.698096v2
Two great Team Days at the lab last week! 🧠✨
A great mix of scientific discussions, brainstorming, tutorials, and informal chats—fueling both collaboration and new ideas. On the menu: implicit timing, temporal distortions, time in working memory, and cognitive maps!
#LabLife
📣New paper out! We successfully replicated our previous work (Azizi et al., 2023), demonstrating that alpha activity is a marker of contextual changes during resting-state.
w/ R. Bordas and @virginievanw.bsky.social
shorturl.at/bKAFp
Modeling how contextual and structural biases shape duration perception https://www.biorxiv.org/content/10.64898/2026.01.07.698096v1
Work done at @cognitionens.bsky.social, @lsp-ens.bsky.social, @cnrsbiologie.bsky.social in collaboration with @unistra.fr @inserm.fr, funded by the FRC and @humboldt-foundation.de
Our results show that performance cannot be explained by Bayesian inference alone: behavior is best captured by a combination of Bayesian inference and a rescaling mechanism, meaning that perceptual systems realigned the two representational spaces of each stimulus within an internal scale.
Preprint out, from my work with @mamassian.bsky.social and Anne! We show that time perception is shaped not only by context but also by structural constraints, by extending classical Bayesian models by explicitly quantifying a structural prior impacting duration discrimination.
shorturl.at/q8bE6
Congratulations to @nadiahosseinizaveh.bsky.social on a brilliant PhD defense: "Evolution and Dynamics of Perceptual Confidence: From Perceptual Learning to Global Confidence Formation". Impressive work advancing our understanding of perception and metacognition.
