LSP-ENS
@lsp-ens.bsky.social
210 followers 36 following 27 posts
The LSP (Laboratoire des Systèmes Perceptifs) is a research laboratory at the Ecole Normale Supérieure, Paris, and the CNRS, with interests in visual and auditory perception. https://lsp.dec.ens.fr/en
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lsp-ens.bsky.social
Responses to combinations of motion clouds were well explained by a simple summation mechanism of the individual components.

Finally, a subset of neurons exhibited responses that could distinguish different speeds.

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lsp-ens.bsky.social
We found that motion features were encoded in a temporally ordered sequence: orientation and spatial frequency emerged within 120 ms after stimulus onset, while temporal frequency and direction followed at later latencies.

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Graphical abstract of the main results of the study by Thomas Schaffhauser
lsp-ens.bsky.social
This work was done with Yves Boubenec at the @lsp-ens.bsky.social

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lsp-ens.bsky.social
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
lsp-ens.bsky.social
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.
Big seminar room, with people sitting in comfortable red seats. Three people (the organizers) are on the stage. Slide titled "Questions". The text on the slide is: 
"1. Can we distinguish between real vs. fake zoom laughter?
2. Can a ferret learn to DJ?
3. Can statistical modelling predict the microwaves behaviour better than intuition?
4. Do coffee breaks transfer more knowledge than official meetings?
5. Can the cleanliness of someone's desk predict the prettiness of their figures?"
Reposted by LSP-ENS
leovarnet.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.
Myself, in front of the title slide "une étude microscopique des mécanismes auditifs de la perception du langage oral".
lsp-ens.bsky.social
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
lsp-ens.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
lsp-ens.bsky.social
Some memories from a few weeks ago: poster presentations from our lab at #CFA2025
2 people in front of a scientific poster A group of people in front of a scientific poster A group of people in front of three scientific posters
Reposted by LSP-ENS
leovarnet.bsky.social
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
lsp-ens.bsky.social
Thank you Karl Gegenfurtner and Doris Braun for two fantastic talks last week in our department!
Reposted by LSP-ENS
cnrsbiologie.bsky.social
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 !
Existe-t-il des mélodies naturelles ?
De nombreuses cultures musicales choisissent des échelles établissant des rapports de fréquence simples (2:1, 3:2, 4:3) entre les notes.
buff.ly
Reposted by LSP-ENS
lgrabot.bsky.social
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 !
a man 's face is being measured by a device with wires attached to it
ALT: a man 's face is being measured by a device with wires attached to it
media.tenor.com
Reposted by LSP-ENS
cognitionens.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
Sons de la nature : quand les chants d’oiseaux nous donnent des ailes
De récentes études scientifiques documentent les bienfaits des chants des merles, pinsons ou mésanges pour le bien-être et la santé mentale.
bit.ly
lsp-ens.bsky.social
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!
Antoine Prosper in front of his "summary and discussion" slide
lsp-ens.bsky.social
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
lsp-ens.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
Reposted by LSP-ENS
mamassian.bsky.social
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
lsp-ens.bsky.social
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
Premotor cortex hemodynamics reflect internal auditory category, not reported category
In sensory decision-making tasks, animals’ decisions are driven by perception, but also by non-perceptual factors. Because of external and internal noise, stimuli may be internally misclassified, lead...
tinyurl.com
lsp-ens.bsky.social
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
danieljamesyon.bsky.social
Really looking forward to the EPS London meeting this week - particularly our symposium on uncertainty w/ talks from Nick Yeung, @tarrynbalsdon.bsky.social, Claire Sergent, Hanneke den Ouden, @philcorlett.bsky.social, @beckyneuro.bsky.social (& me)

eps.ac.uk/next-meeting/