Congrats to Jun Yang for defending his PhD on “Visual detection of elementary image features during natural behaviour”. 🎉 Well done Dr Jun on this amazing accomplishment.🥳 -- Credits for the pictures to @mengtingj.bsky.social

The latest research by Alain de Cheveigné from our lab is featured on the cover of the Journal of Neuroscience! https://www.jneurosci.org/content/46/7.cover-expansion

Applications for BAMB! 2026 are officially open! Join us in Barcelona (July 12–23) to master the art of behavioral modeling with our incredible faculty: @meganakpeters.bsky.social @marcelomattar.bsky.social @khamascience.bsky.social @thecharleywu.bsky.social Apply now here: www.bambschool.org

A forest, a desert, have unique acoustic signatures in frequency and time. A study from our lab (N.Miller, C.Lorenzi) shows that soundscapes recorded over different continents distinguish habitats and follow the global biodiversity decrease from tropical to polar regions. @cognitionens.bsky.social

Happy international day for women and girls in science! #WomenInScience

Only a few days left to apply to the Cognitive Science Master’s. !!!! Deadline: Feb 24 !!!!

The CNRS (@cnrs.fr) and the Ecole Normale Supérieure/PSL University (@normalesup.bsky.social) is launching a 5-year International Research Project (IRP) with University College London (@ucl.ac.uk) on human perception and consciousness. www.ucl.ac.uk/global/news/...

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

That's it, #SPIN2026 is over, thank you to all attendees for two great days of thought-provoking talks, amazing poster sessions... and actual speech-in-noise demo during coffee breaks!

The program booklet for the SpiN workshop is now ready to download! Two days of intense discussions on psychoacoustics and psycholinguistics await at ENS Paris next week! https://2026.speech-in-noise.eu/files/SPIN2026-Programme.pdf

Huge congratulations to Nicole Miller for successfully defending her PhD, concluding our lab’s 2025 defense season! You can check some of her work on auditory perception of natural soundscapes here: https://pmc.ncbi.nlm.nih.gov/articles/PMC10658775/

1/8 Yesterday, we gathered for our annual end-of-year meeting, and as tradition dictates we awarded the most prestigious and coveted titles of the year. From ferret socializing to coffee consumption, here’s who took home the trophies. ⬇️

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.

New article published in @frontiersin.bsky.social #Psychology! We introduce fastACI, an #openaccess toolbox that enables researchers to design auditory reverse-correlation experiments and analyze the resulting data. www.frontiersin.org/journals/psy... @cognitionens.bsky.social @lsp-ens.bsky.social

A new paper co-authored by Daniel Pressnitzer, from @lsp-ens.bsky.social!

We are remarkably good at recognizing natural auditory “textures”, such as the soothing sound of a running brook or fire crackling in a chimney. But do you think you could remember the exact rain texture that opens “Riders on the Storm”?

Laurie Heller (@cmu-neuroscience.bsky.social, @cmu.edu) gave an excellent seminar for @cognitionens.bsky.social invited by the LSP.

LSP thanks Michael Tarr (@cmu-neuroscience.bsky.social @cmu.edu) for an excellent seminar today on Data-driven Visual Discovery Using AI

RT @mamassian.bsky.social‬: Delighted to share this work led by Thomas Schaffhauser on the processing of rich natural-like motion stimuli (“motion clouds”) in the visual cortex of the ferret: https://www.biorxiv.org/content/10.1101/2025.09.23.678183v1

Last week we kicked off our first lab meeting of the new academic year. No scientific presentation this time. Instead, we were tasked with designing experiments to answer some *truly critical* research questions.

@tarrynbalsdon.bsky.social and @nadiahosseinizaveh.bsky.social had a great time at #ASSC28. Thank you organizers @assc28.bsky.social!

Yesterday I defended my 'Habilitation à diriger des Recherches'! Thanks to those who attended! And thank you to a wonderful jury: J. Gervain, A. Calcus, I. Chitoran, J.J. Aucouturier, E. Gaudrain, C. Lorenzi.

Highlight from #VSS2025 @tarrynbalsdon.bsky.social giving a talk on "Probing metacognition with the psychophysicist's microelectrode". A project in collaboration with Paolo Bartolomeo, Vincent de Gardelle, @mamassian.bsky.social and Marion Rouault! @vssmtg.bsky.social

Highlight from #VSS2025 Ljubica Jovanovic presenting "When a blunt event is perceived depends on its temporal profile". A joint work with @mamassian.bsky.social @vssmtg.bsky.social

Some memories from a few weeks ago: poster presentations from our lab at #CFA2025

The paper is now online and #openaccess on @hal_fr : "50 Years of Reverse Correlation: Replicating Ahumada et al.’s Pioneering Study" hal.science/hal-05060148

Écouter l’eau pour comprendre la relation des habitant·es à leur environnement, un projet né d’une rencontre entre la géographe Pauline Guinard et le chercheur en sciences cognitives, Christian Lorenzi @normalesup.bsky.social @lsp-ens.bsky.social @psl-univ.bsky.social 👉 bit.ly/44bUeTS

Thank you Karl Gegenfurtner and Doris Braun for two fantastic talks last week in our department!

La nature compose-t-elle ses propres mélodies ? 🐦🎶 Des scientifiques se sont penchés sur la question et ont découvert des structures sonores fascinantes… et peut-être même des harmonies inattendues !

Dans Severance, la dernière (super) série SF du moment, ça discute cerveau et oscillations ! ! L'occasion rêvée pour un article dans @france.theconversation.com, où neurosciences et science-fiction se mêlent ➡️ theconversation.com/severance-le... Merci Aurélie Louchart, @bentonson.bsky.social !

MÉDIAS I Sons de la nature:quand les chants d’oiseaux nous donnent des ailes."Nous avons pu constater des réactions émotionnelles positives de la part des personnes qui ont pu réécouter des sons de la nature grâce à des prothèses auditives"C.Lorenzi @lsp-ens.bsky.social @liberation.fr bit.ly/4iXjoJX

Congratulation to Antoine Prosper who successfully defended his thesis yesterday! You can check out his two recent articles on Hebbian and homeostatic plasticity in vision below: - www.sciencedirect.com/science/arti... - physoc.onlinelibrary.wiley.com/doi/10.1113/... Well done Antoine!

Proud of sharing our latest study, just out on @jphysiol.bsky.social ! We show that Hebbian and homeostatic plasticity are linked in adult humans, but do not directly interact. @lsp-ens.bsky.social @cognitionens.bsky.social @cnrs.fr @erc.europa.eu physoc.onlinelibrary.wiley.com/doi/full/10....

Congratulations to Pierre Orhan (@pierreorhan.bsky.social) who successfully defended his PhD on "Learning dynamics in biological and artificial neural networks", conducted at @normalesup.bsky.social

🎉 TWO new preprints from our lab on hierarchical processing in ferret auditory cortex! 🦊🧠 🚨 Stay tuned for highlights on each study in the following posts 🚨 #Neuroscience #CogSci #BioRxiv

Do you want to study cognitive science and live in Paris? Our master’s program in Cognitive Science at @ENS_ULM, @psl_univ, and @EHESS_fr is now accepting applications for 2025-2026. All courses are in English. Deadline: 13 March 2025 More info: master-cognitive-science.ens.psl.eu/en

Animals make errors influenced by both perceptual and non-perceptual factors. Last study from Jeffrey Boucher and Yves Boubenec from our lab uses this to show that premotor cortex tracks the perceived stimulus, not the one reported by behavior. Discover more: tinyurl.com #Neuroscience #fUSi

If you are in London, consider going to this very nice symposium organized by @danieljamesyon.bsky.social where you’ll be able to listen to our lab member @tarrynbalsdon.bsky.social

What a sprint of academic achievements! In just 15 days, four PhD students from the lab successfully defended their theses. Today, a big congratulations to Flavien Feral, who presented his research on sensorimotor interactions in a sound production task.

Congratulations to Rodrigue Bravard from our lab, who successfully defended his thesis on interindividual frequency weighting differences in auditory perception!

Un petit résumé en français de notre dernière étude, sur le site du @cnrs.bsky.social : "Cartographier la perception des phonèmes du français" www.inshs.cnrs.fr/fr/cnrsinfo/...

We have a new doctor! Congratulations to Linnea Evanson for successfully defending her #PhD thesis on language acquisition in brains and deep learning algorithms!

Yesterday, the LSP had its end-of-the year party, with pop-corn, champagne, a quiz... and even an award ceremony! Here are some of our winners:

LSP is lucky to have a visit from Kristina Nielsen, who is telling us about her incredible work on the development of motion integration.

📣 🦋 Le DEC rejoint Bluesky. Vous y retrouverez toute l'actualité de la #recherche en #sciencescognitives à l'École normale supérieure !

Congratulations to Magdalena Sabat (@magdalenasabat.bsky.social) who successfully defended her PhD that she performed between our lab and the LNC2 at @normalesup.bsky.social !

Our paper is finally out! In this registered report, we found that #visualtraining can improve #visionloss post #stroke and these improvements are supported by changes in #whitematter in visual pathways. academic.oup.com/braincomms/a...

OUT NOW in Nat Comms: rdcu.be/dXEbw We know feelings of confidence in our decisions help us to learn and communicate. Here we show evidence that confidence helps us make better decisions. With Marios Philiastides @ccniuofg.bsky.social and LSP_ENS A short summary (1/5)

Our new #OpenAccess paper is out in Scientific Reports! 🧪 www.nature.com/articles/s41... My coauthors and I jokingly called it "the masterpiece" because it wraps up a research line I began during my PhD... 10 years ago! Here's a quick thread on the backstory and what we found [1/X]

We are the “Laboratoire des Systèmes Perceptifs”, a research unit located at the Ecole Normale Supérieure in Paris and attached to CNRS (@cnrs.bsky.social). We are interested in visual and auditory perception, from behavioural, computational, and neural perspectives.