Laetitia Grabot
@lgrabot.bsky.social
Cognitive neuroscientist - I'm doing science and I'm still alive
** brain oscillations, perceptual bias, time perception **
** brain oscillations, perceptual bias, time perception **
Pinned
Laetitia Grabot
@lgrabot.bsky.social
· Apr 20
Traveling waves in the human visual cortex: An MEG-EEG model-based approach
Author summary Brain oscillations, thought to be crucial for many cognitive processes, might actually be waves that travel across the brain’s surface. Understanding these traveling waves is notoriousl...
tinyurl.com
New paper out in @plos.org Computational Biology! 🚨
We present a model-based approach to study traveling waves using MEG/EEG - no invasive recordings needed! Work done at the INCC, @upcite.bsky.social with @lauradugue.bsky.social, G Merolz, @rewaniw.bsky.social & D Heeger
/1
tinyurl.com/56dpd922
We present a model-based approach to study traveling waves using MEG/EEG - no invasive recordings needed! Work done at the INCC, @upcite.bsky.social with @lauradugue.bsky.social, G Merolz, @rewaniw.bsky.social & D Heeger
/1
tinyurl.com/56dpd922
Reposted by Laetitia Grabot
📣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
w/ R. Bordas and @virginievanw.bsky.social
shorturl.at/bKAFp
Spontaneous Oscillatory Activity in Episodic Timing: An EEG Replication Study and Its Limitations
Episodic timing refers to the one-shot, automatic encoding of temporal information in the brain, in the absence of attention to time. A previous magnetoencephalography (MEG) study showed that the rela...
shorturl.at
February 3, 2026 at 3:19 PM
📣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
w/ R. Bordas and @virginievanw.bsky.social
shorturl.at/bKAFp
Reposted by Laetitia Grabot
Modeling how contextual and structural biases shape duration perception https://www.biorxiv.org/content/10.64898/2026.01.07.698096v1
January 8, 2026 at 6:15 PM
Modeling how contextual and structural biases shape duration perception https://www.biorxiv.org/content/10.64898/2026.01.07.698096v1
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
shorturl.at/q8bE6
Modeling how contextual and structural biases shape duration perception
Human time perception is flexible and shaped by both structural constraints and contextual influences. Disentangling these sources of bias is essential for understanding the predictive mechanisms unde...
www.biorxiv.org
January 9, 2026 at 9:10 AM
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
shorturl.at/q8bE6
Reposted by Laetitia Grabot
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.
December 8, 2025 at 7:09 PM
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 paper out! With @lauradugue.bsky.social & @kirstenpetras.bsky.social, we show that traveling waves seen in EEG/MEG sensors might reflect real waves on the brain’s visual cortices—not just artifacts. Based on a MEG-EEG dataset with visually triggered traveling waves.
tinyurl.com/st4bkday
tinyurl.com/st4bkday
Locally induced traveling waves generate globally observable traveling waves
Cortical traveling waves have been proposed as a fundamental mechanism for neural communication and computation. Methodological uncertainties currently limit the interpretability of non-invasive, extr...
www.jneurosci.org
July 25, 2025 at 1:05 PM
🚀New paper out! With @lauradugue.bsky.social & @kirstenpetras.bsky.social, we show that traveling waves seen in EEG/MEG sensors might reflect real waves on the brain’s visual cortices—not just artifacts. Based on a MEG-EEG dataset with visually triggered traveling waves.
tinyurl.com/st4bkday
tinyurl.com/st4bkday
Reposted by Laetitia Grabot
🚨New publication from the #DuguéLab on @erc.europa.eu funded research on #traveling_waves!
@sfnjournals.bsky.social
Work led by @kirstenpetras.bsky.social and @lgrabot.bsky.social
@upcite.bsky.social | @cnrs.fr
www.jneurosci.org/content/earl...
@sfnjournals.bsky.social
Work led by @kirstenpetras.bsky.social and @lgrabot.bsky.social
@upcite.bsky.social | @cnrs.fr
www.jneurosci.org/content/earl...
Locally induced traveling waves generate globally observable traveling waves
Cortical traveling waves have been proposed as a fundamental mechanism for neural communication and computation. Methodological uncertainties currently limit the interpretability of non-invasive, extr...
www.jneurosci.org
July 25, 2025 at 5:46 AM
🚨New publication from the #DuguéLab on @erc.europa.eu funded research on #traveling_waves!
@sfnjournals.bsky.social
Work led by @kirstenpetras.bsky.social and @lgrabot.bsky.social
@upcite.bsky.social | @cnrs.fr
www.jneurosci.org/content/earl...
@sfnjournals.bsky.social
Work led by @kirstenpetras.bsky.social and @lgrabot.bsky.social
@upcite.bsky.social | @cnrs.fr
www.jneurosci.org/content/earl...
Reposted by Laetitia Grabot
Our oscillations consensus paper is finally out as a preprint 🤩 thanks to everyone involved
arxiv.org/abs/2507.15639
arxiv.org/abs/2507.15639
July 22, 2025 at 12:46 PM
Our oscillations consensus paper is finally out as a preprint 🤩 thanks to everyone involved
arxiv.org/abs/2507.15639
arxiv.org/abs/2507.15639
Reposted by Laetitia Grabot
Happy to have contributed together with @lgrabot.bsky.social to discuss #traveling_waves and cognition!
/1 We took our sweet time (~3yrs) to put this into its final shape - but happy to say that the pre-print of an extensive review of brain rhythms in cognition - from a cognruro perspective - is now available. Please let us know what you think. #neuroskyence doi.org/10.48550/arX...
Brain rhythms in cognition -- controversies and future directions
Brain rhythms seem central to understanding the neurophysiological basis of human cognition. Yet, despite significant advances, key questions remain unresolved. In this comprehensive position paper, w...
doi.org
July 23, 2025 at 5:16 AM
Happy to have contributed together with @lgrabot.bsky.social to discuss #traveling_waves and cognition!
Reposted by Laetitia Grabot
Symposia 1 and 2 are on now! Come and hear about the neural dynamics of temporal processing (Rohe, Senkowski) or multisensory embodied self-environment interactions (Crucianelli)
July 15, 2025 at 1:09 PM
Symposia 1 and 2 are on now! Come and hear about the neural dynamics of temporal processing (Rohe, Senkowski) or multisensory embodied self-environment interactions (Crucianelli)
Reposted by Laetitia Grabot
Les membres du Conseil scientifique de l'ENS-PSL partagent la vive inquiétude des personnels d'@universcience.bsky.social sur le devenir du @palaisdecouverte.bsky.social et s'associent à la pétition en cours.
En savoir plus 👉 https://bit.pulse.ly/b1pitkbaaa
En savoir plus 👉 https://bit.pulse.ly/b1pitkbaaa
June 26, 2025 at 2:59 PM
Les membres du Conseil scientifique de l'ENS-PSL partagent la vive inquiétude des personnels d'@universcience.bsky.social sur le devenir du @palaisdecouverte.bsky.social et s'associent à la pétition en cours.
En savoir plus 👉 https://bit.pulse.ly/b1pitkbaaa
En savoir plus 👉 https://bit.pulse.ly/b1pitkbaaa
Reposted by Laetitia Grabot
Very proud of João VX Cardoso from the #DugueLab for the first preprint of his PhD on a computational model of traveling waves. Work in collaboration with David J. Heeger and Hsin-Hung Li.
@erc.europa.eu
www.biorxiv.org/content/10.1...
@erc.europa.eu
www.biorxiv.org/content/10.1...
Attention induced perceptual traveling waves in binocular rivalry
Cortical traveling waves -smooth changes of phase over time across the cortical surface- have been proposed to modulate perception periodically as they travel through retinotopic cortex. Yet, little i...
www.biorxiv.org
April 24, 2025 at 6:26 AM
Very proud of João VX Cardoso from the #DugueLab for the first preprint of his PhD on a computational model of traveling waves. Work in collaboration with David J. Heeger and Hsin-Hung Li.
@erc.europa.eu
www.biorxiv.org/content/10.1...
@erc.europa.eu
www.biorxiv.org/content/10.1...
New paper out in @plos.org Computational Biology! 🚨
We present a model-based approach to study traveling waves using MEG/EEG - no invasive recordings needed! Work done at the INCC, @upcite.bsky.social with @lauradugue.bsky.social, G Merolz, @rewaniw.bsky.social & D Heeger
/1
tinyurl.com/56dpd922
We present a model-based approach to study traveling waves using MEG/EEG - no invasive recordings needed! Work done at the INCC, @upcite.bsky.social with @lauradugue.bsky.social, G Merolz, @rewaniw.bsky.social & D Heeger
/1
tinyurl.com/56dpd922
Traveling waves in the human visual cortex: An MEG-EEG model-based approach
Author summary Brain oscillations, thought to be crucial for many cognitive processes, might actually be waves that travel across the brain’s surface. Understanding these traveling waves is notoriousl...
tinyurl.com
April 20, 2025 at 6:26 PM
New paper out in @plos.org Computational Biology! 🚨
We present a model-based approach to study traveling waves using MEG/EEG - no invasive recordings needed! Work done at the INCC, @upcite.bsky.social with @lauradugue.bsky.social, G Merolz, @rewaniw.bsky.social & D Heeger
/1
tinyurl.com/56dpd922
We present a model-based approach to study traveling waves using MEG/EEG - no invasive recordings needed! Work done at the INCC, @upcite.bsky.social with @lauradugue.bsky.social, G Merolz, @rewaniw.bsky.social & D Heeger
/1
tinyurl.com/56dpd922
Reposted by Laetitia Grabot
🚨New article from the #DuguéLab in #PLOS_Computational_Biology, led by @lgrabot.bsky.social! We developed a new model-based neuroimaging approach to study Traveling Waves in visual cortex using MEG-EEG.
@erc.europa.eu
journals.plos.org/ploscompbiol...
@erc.europa.eu
journals.plos.org/ploscompbiol...
Traveling waves in the human visual cortex: An MEG-EEG model-based approach
Author summary Brain oscillations, thought to be crucial for many cognitive processes, might actually be waves that travel across the brain’s surface. Understanding these traveling waves is notoriousl...
journals.plos.org
April 18, 2025 at 6:16 AM
🚨New article from the #DuguéLab in #PLOS_Computational_Biology, led by @lgrabot.bsky.social! We developed a new model-based neuroimaging approach to study Traveling Waves in visual cortex using MEG-EEG.
@erc.europa.eu
journals.plos.org/ploscompbiol...
@erc.europa.eu
journals.plos.org/ploscompbiol...
Reposted by Laetitia Grabot
Comment les neurosciences expliquent-elles le processus de réintégration dans la série « Severance » ? Est-il crédible ?
« Severance » : le processus de réintégration décrypté par les neurosciences
Comment les neurosciences expliquent-elles le processus de réintégration dans la série « Severance » ? Est-il crédible ?
theconversation.com
March 19, 2025 at 12:20 PM
Comment les neurosciences expliquent-elles le processus de réintégration dans la série « Severance » ? Est-il crédible ?
Reposted by Laetitia Grabot
Excellent papier de @lgrabot.bsky.social , à lire dans le premier numéro de notre nouvelle newsletter !
Pour vous abonner : theconversation.com/fr/newslette...
Pour vous abonner : theconversation.com/fr/newslette...
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 !
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
March 19, 2025 at 4:04 PM
Excellent papier de @lgrabot.bsky.social , à lire dans le premier numéro de notre nouvelle newsletter !
Pour vous abonner : theconversation.com/fr/newslette...
Pour vous abonner : theconversation.com/fr/newslette...
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 !
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
March 19, 2025 at 3:48 PM
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 !
Merci Aurélie Louchart, @bentonson.bsky.social !
For the 10th anniversary of the International Day of Women and Girls in Science, @unesco.org invites us to reflect on this question: "What would be different in your field if more women were involved in science?"
#EveryVoiceInScience #WomenInScience
#EveryVoiceInScience #WomenInScience
February 11, 2025 at 3:03 PM
For the 10th anniversary of the International Day of Women and Girls in Science, @unesco.org invites us to reflect on this question: "What would be different in your field if more women were involved in science?"
#EveryVoiceInScience #WomenInScience
#EveryVoiceInScience #WomenInScience
Reposted by Laetitia Grabot
The DugueLab is looking for a candidate to apply to the @fondationfyssen.bsky.social postdoctoral fellowship program!
Contact me if you are interested !
www.fondationfyssen.fr/en/study-gra...
Contact me if you are interested !
www.fondationfyssen.fr/en/study-gra...
Post-doctoral study grants : Aim & award - Fondation Fyssen
Goals Study grants are ment for post-doctoral researchers, working on research disciplines such as Ethology, Paleontology, Archaeology, Anthropology, Psychology, Epistemology, Logic and Sciences of n...
www.fondationfyssen.fr
January 15, 2025 at 12:32 PM
The DugueLab is looking for a candidate to apply to the @fondationfyssen.bsky.social postdoctoral fellowship program!
Contact me if you are interested !
www.fondationfyssen.fr/en/study-gra...
Contact me if you are interested !
www.fondationfyssen.fr/en/study-gra...
A piece of evidence showing that a signal propagating across MEG-EEG sensors can reflect local traveling waves within visual areas!
Very happy to share our first 2025 preprint on #ERC funded work on Traveling Waves in human! The work was led by Dugué Lab postdoc @kirstenpetras.bsky.social and former postdoc Laetitia Grabot at Université Paris Cité
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Locally induced traveling waves generate globally observable traveling waves
Cortical traveling waves have been proposed as a fundamental mechanism for neural communication and computation. Methodological uncertainties currently limit the interpretability of non-invasive, extr...
www.biorxiv.org
January 8, 2025 at 9:15 AM
A piece of evidence showing that a signal propagating across MEG-EEG sensors can reflect local traveling waves within visual areas!
Reposted by Laetitia Grabot
Following the trend, here's a starter pack of EEG researchers: go.bsky.app/H2URVjv. Let me know if you'd like to be added or removed. The list is very partial and still needs to be expanded, but I hope you find it helpful! 🧠 #EEG #neuroscience #neuroskyence
November 12, 2024 at 8:03 AM
Following the trend, here's a starter pack of EEG researchers: go.bsky.app/H2URVjv. Let me know if you'd like to be added or removed. The list is very partial and still needs to be expanded, but I hope you find it helpful! 🧠 #EEG #neuroscience #neuroskyence
Reposted by Laetitia Grabot
Proud to share our last preprint on a model-based approach to study Traveling Waves in humans! ERC funded work led by Laetitia Grabot at Université Paris Cité, former Dugué Lab postdoc, together with David Heeger and Jonathan Winawer from NYU.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Traveling Waves in the Human Visual Cortex: a MEG-EEG Model-Based Approach
Brain oscillations might be traveling waves propagating in cortex. Studying their propagation within single cortical areas has mostly been restricted to invasive measurements. Their investigation in h...
www.biorxiv.org
October 14, 2024 at 11:42 AM
Proud to share our last preprint on a model-based approach to study Traveling Waves in humans! ERC funded work led by Laetitia Grabot at Université Paris Cité, former Dugué Lab postdoc, together with David Heeger and Jonathan Winawer from NYU.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...