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Pierre Champetier

@champetier-pierre.bsky.social
185 followers 165 following 37 posts

Post-doc at the Paris Brain Institute (ICM) with Thomas Andrillon and Delphine Oudiette. Interested in sleep, infraslow oscillations, ageing, Alzheimer, memory, spindles, slow waves...

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Pierre Champetier @champetier-pierre.bsky.social · 26/08/2026
Join us in Paris (21-25 September) for a workshop on EEG/MEG! 🧠 Register here: cuttingeeg.org/cuttinggarde...
cuttingeeg.org
Paris | CuttingGardens2026
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Pierre Champetier @champetier-pierre.bsky.social · 01/06/2026
🥳📰 Our new paper on sleep-like slow waves (resting-state EEG recordings) in older adults is now out in A&D journal! 🥳📰 Thanks @alzheimer-recherche.org for support and to co-authors! @alzassociation.bsky.social @institutducerveau.bsky.social alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
alz-journals.onlinelibrary.wiley.com
Sleep‐like slow waves during resting‐state: A promising EEG biomarker of amyloid and neurodegeneration in preclinical Alzheimer's disease
INTRODUCTION Growing evidence supports a critical role of sleep slow waves (SW) in Alzheimer's disease (AD). However, wake SW (sleep-like SW potentially reflecting local intrusions of sleep) remain ...
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Martin Dresler @dresler.bsky.social · 14/05/2026
Tired of manually scoring your sleep recordings? Postdoc from our lab @paulzerr.bsky.social recently released NIDRA v0.2.3, an open-source autoscoring GUI & Python package for super simple sleep autoscoring using different established ML algorithms. Download here: nidra.netlify.app
Autoscoring by NIDRA.
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Randolph Helfrich @randolph-helfrich.bsky.social · 28/04/2026
Two postdoc opportunities @yale.edu in human neurophysiology. One position in my lab @wutsaiyale.bsky.social focusing on human cognitive neurophysiology. Details at helfrich-lab.com/news/ Plus a possible collab with anesthesiology 👇 #NeuroTwitter #NeuroJobs #neuroskyence #EEG Please share.
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Thomas Andrillon @thomasandrillon.bsky.social · 09/04/2026
New article with @oudietted.bsky.social and the @dreamteamicm.bsky.social Dream-like mental states can occur during wakefulness Published now in @cp-cellreports.bsky.social www.cell.com/cell-reports... Congrats to Nicolas Decat!
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Jimmy Dooley @jimmycdooley.bsky.social · 06/04/2026
New paper (with lots of cute animal videos!) Ever watch your dog "run" while asleep and wonder what’s going on in their brain? In Current Bio we suggest that those twitches aren't just leaky dreams—they’re a vital maintenance system for the most precise movements www.cell.com/current-biol...
cell.com
REM-sleep twitching in adults and the maintenance of specialized sensorimotor systems
Blumberg et al. present video evidence of twitching during adult sleep in a diverse sample of animals. Adult twitching appears to selectively involve appendages used for active sensing, mirroring thei...
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Gabrielle Girardeau @ggirardeau.bsky.social · 01/04/2026
Our paper is out today!!! (not an April fool's day joke) Congrats to authors @azulsilva.bsky.social, @belalima-paiva.bsky.social, Ele Pronier, and mostly to the amazing scientist and human being who led this project @facuumm.bsky.social #neuroskyence #hippocampus www.nature.com/articles/s41...
nature.com
Dorsoventral hippocampus neural assemblies reactivate during sleep following an aversive experience - Nature Neuroscience
Synchronization of sharp-wave ripples across the dorsoventral hippocampus during sleep supports coordinated reactivation that represents negative experiences more faithfully than positive ones.
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CuttingEEG @cuttingeeg.bsky.social · 27/03/2026
CuttingGardens 2026 is back 🌍 Global EEG & MEG multi-hub meeting 📅 Save the date: Sept 21–25 20+ Gardens worldwide 🇦🇷🇦🇺🇧🇪🇨🇱🇨🇳🇨🇺🇫🇷🇩🇪🇮🇹🇳🇱🇵🇱🇪🇸🇨🇭🇹🇭🇹🇳🇬🇧🇺🇾🇺🇸🇳🇬🇰🇪🇪🇬🇹🇿 Join the movement 🌱 #EEG #MEG #Neuroscience #OpenScience #CuttingGardens
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Thomas Andrillon @thomasandrillon.bsky.social · 20/03/2026
🚨 Paper alert 🚨 Our work on sleep intrusions in #ADHD is now published in Journal of Neuroscience @sfnjournals.bsky.social www.jneurosci.org/content/early/2026/03/05/JNEUROSCI.1694-25.2025 Adults with ADHD show more sleep-like slow waves during wake, which partially account for ADHD symptoms 🧪💤
jneurosci.org
Sleep-like Slow Waves During Wakefulness Mediate Attention and Vigilance Difficulties in Adult Attention-Deficit/Hyperactivity Disorder
Attention-Deficit/Hyperactivity Disorder (ADHD) is characterised by behavioural variability and heightened inattention associated with increased mind wandering (MW) and mind blanking (MB). Individuals...
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SfN Journals @sfnjournals.bsky.social · 16/03/2026
New in #JNeurosci from Pinggal et al: Medication-withdrawn adults with ADHD exhibit more sleep-like brain activity while awake than neurotypical adults that is linked to poorer performance in a task that requires sustained attention. doi.org/10.1523/JNEUROSCI.1694-25.2…
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Ken Paller @paller.bsky.social · 05/02/2026
New publication out today from the amazing PhD dissertation of Karen Konkoly @karenkonkoly.bsky.social in Neuroscience of Consciousness @nconsc.bsky.social : Creative problem-solving after experimentally provoking dreams of unsolved puzzles during REM sleep academic.oup.com/nc/article/2...
academic.oup.com
Creative problem-solving after experimentally provoking dreams of unsolved puzzles during REM sleep
Abstract. Dreams have arguably been a source of creative insight for millennia. The specific assertion that dreams during rapid eye movement (REM) sleep pr
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Pierre Champetier @champetier-pierre.bsky.social · 20/01/2026
Happy to share new preprint on wake slow waves in older adults with subjective cognitive decline, with my awesome postdoc mentors @thomasandrillon.bsky.social & @oudietted.bsky.social at @institutducerveau.bsky.social Thanks @alzheimer-recherche.org for support! www.medrxiv.org/content/10.6...
medrxiv.org
Sleep-like slow waves during resting-state: a promising EEG biomarker of amyloid and neurodegeneration in preclinical Alzheimer disease
INTRODUCTION: Growing evidence supports a critical role of sleep slow waves (SW) in Alzheimer's disease (AD). However, wake SW (sleep-like SW potentially reflecting local intrusions of sleep) remain u...
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Pierre Champetier @champetier-pierre.bsky.social · 02/01/2026
Evolutionary insights into sleep infraslow rhythmicity! Excited to see research investigating such rhythms beyond humans and rodent models, including pigeons 🐦 and 7 lizard species 🦎
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PLOS Biology @plosbiology.org · 25/11/2025
Sleep supports brain health partly by regulating fluid dynamics to clear waste. @ulvlarsen.bsky.social &co probe the relation between #sleep & fluid movement in the human #brain, finding that #SleepPressure & intensity have distinct effects on brain pulsations @plosbiology.org 🧪 plos.io/3XQWCL6
Sleep pressure and slow-wave-rich NREM sleep exert distinct effects on cerebral vasomotion and on brain pulsations driven by respiratory and cardiac forces. Heightened sleep pressure (following 35 h of wakefulness) promotes vasomotion (yellow box). Slow-wave-rich NREM sleep enhances brain pulsations driven by the respiratory and cardiac cycles—more so in gray and white matter than in the ventricles (red boxes). The respiration- and cardiac-driven brain pulsations also intensify with deeper sleep (N3 > N2) and correlate with EEG delta power, which is a measure of slow-wave activity (light vs. dark red boxes).
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Ken Paller @paller.bsky.social · 20/11/2025
Announcing the 5th International Sleep Replay Workshop (ISRW): March 6, 2026, Vancouver, prior to CNS. Program: poster session, discussion groups, 2 symposia, 7 short talks, & many opportunities to interact. Register by Dec 19 at isrw.bio.uci.edu All researchers focused on sleep/cognition welcome.
urldefense.com
The 5th International Sleep Replay Workshop
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CNS 2027 Annual Meeting @cnsmtg.bsky.social · 13/11/2025
#CNS2026 | Satellite - International Sleep Replay Workshop Friday, March 6, 2026, 8:00 am - 6:00 pm, Salon F The workshop is open to all: experience with sleep research is not required. Register here: isrw.bio.uci.edu Registration Deadline, February 15th @cogneuronews.bsky.social #SleepRelay
cogneurosociety.org
Workshops, Socials & Special Events - Cognitive Neuroscience Society
March 7 – 10, 2026 CNS Account CNS 2026 | Workshops, Socials & Special Events   SESSION DATE TIME LOCATION Satellite – International Sleep Replay Workshop Friday, March 6 8:00 am – 6:00 pm Salon F Wor...
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Heinrich Gompf @hgompf.bsky.social · 31/10/2025
International recommendations for sleep and circadian research in aging and Alzheimer's disease: A Delphi consensus study alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
alz-journals.onlinelibrary.wiley.com
International recommendations for sleep and circadian research in aging and Alzheimer's disease: A Delphi consensus study
INTRODUCTION Research in the field of sleep, aging, and dementia is rapidly growing. Consensus guidance is needed to facilitate high-quality research, comparability, and consistency. METHODS A mod...
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Ewa Beldzik @ewa-beldzik.bsky.social · 29/10/2025
Our paper on CSF, BOLD, pupil, and physiological measures in sleep deprivation and recovery sleep is finally out! 🎉 Congrats Zinong! www.nature.com/articles/s41...
nature.com
Attentional failures after sleep deprivation are locked to joint neurovascular, pupil and cerebrospinal fluid flow dynamics - Nature Neuroscience
Yang et al. show that moments of failed attention we experience after sleep deprivation reflect brief ‘sleep-like’ episodes in the brain, corresponding to a brain- and body-wide event with altered bra...
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Pierre Champetier @champetier-pierre.bsky.social · 29/10/2025
Amazing new study combining functional PET(fPET)-FDG and EEG-fMRI simultaneously during wakefulness and sleep, providing both temporal and spatial insights into metabolic and hemodynamic activities at the infraslow scale (~0.02 Hz) during NREM sleep. Wow 🤯 www.nature.com/articles/s41...
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Martin Dresler @dresler.bsky.social · 20/10/2025
Neuroscience of Dreaming Summer School - May 4-8, 2026 - Lucca, Italy Applications open: nodsummerschool.imtlucca.it
Neuroscience of Dreaming Summer School
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Thomas Andrillon @thomasandrillon.bsky.social · 16/10/2025
Check out our new preprint: www.biorxiv.org/content/10.1... And Paris' thread (@parboulakis.bsky.social): bsky.app/profile/parb... Where we explore the neural signature of mind blanking using EEG and fMRI combined!
biorxiv.org
Distinct cortical profiles underlie the common reportability of thought-free experiences
Mind blanking (MB) is a mental state of seemingly no reportable thought content. The question of how we can entertain no thoughts while awake is challenging for the study of spontaneous thinking. By c...
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Anil Seth @anilseth.bsky.social · 17/10/2025
1/ "Hemispherotomy leads to persistent sleep-like slow waves in the isolated cortex of awake humans" - out now in @plosbiology.org, led by Michele Colombo, Jacopo Favaro, & Marcello Massimini. 🧠
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Liad Mudrik @liadmudrik.bsky.social · 16/10/2025
Please RT! 🙏🙏🙏 1/3 How do you correct for multiple comparisons? Do you take into account *all* comparisons that can render the paper publishable? Most of us don’t. In this NHB piece, Yoav Benjamini, Yoav Zeevi and I argue that it’s time to change our practices >> www.nature.com/articles/s41...
nature.com
Correction for multiple comparisons should be ubiquitous - Nature Human Behaviour
Nature Human Behaviour - Correction for multiple comparisons should be ubiquitous
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Giulio Bernardi @giuliobernardi.bsky.social · 09/10/2025
Kort Driessen, Fabio Squarcio, Giulio Tononi, Chiara Cirelli "Induction of cortical ON/OFF periods in awake mice fulfills sleep functions" doi.org/10.1101/2025...
doi.org
Induction of cortical ON/OFF periods in awake mice fulfills sleep functions
Can animals obtain core benefits of sleep while remaining awake? In mammals, slow-wave sleep is characterized by synchronized neuronal activity alternating between ON and OFF periods. Slow-wave activi...
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Thomas Andrillon @thomasandrillon.bsky.social · 29/09/2025
New paper! 🧠💤 www.nature.com/articles/s41... Led by Pauline Dodet - @dreamteamicm.bsky.social We show that #sleep stage mixing predicts poor prognosis in #Parkinson. Stage mixing = intrusions of wake-like activity during sleep, and vice versa. Estimated with hypnodensities extracted from PSG.
nature.com
Sleep stage mixing is associated with poor prognosis in early Parkinson’s disease - npj Parkinson's Disease
npj Parkinson's Disease - Sleep stage mixing is associated with poor prognosis in early Parkinson’s disease
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Martin Dresler @dresler.bsky.social · 14/09/2025
17,058 proposals received, 1,650 to be funded. Break-even, where more money is paid out than burned by the process, is ~2 months time investment per application (assuming only few admin/review/non-submitted efforts). Uncomfortably close to predatory territory: doi.org/10.1111/imcb...
doi.org
<em>Immunology & Cell Biology</em> | ASI Journal | Wiley Online Library
Researchers are spending an increasing fraction of their time on applying for funding; however, the current funding system has considerable deficiencies in reliably evaluating the merit of research p....
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Pierre Champetier @champetier-pierre.bsky.social · 14/09/2025
Preprint on sleep-like slow waves during wakefulness in Parkinson's disease
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Pierre Champetier @champetier-pierre.bsky.social · 25/08/2025
Inspiring preprint on delta waves in REM (yes, REM) sleep in the context of ageing and Alzheimer's disease, great work!
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Imaging Neuroscience @imagingneurosci.bsky.social · 24/08/2025
New paper in Imaging Neuroscience by Martyna Rakowska, Penelope A. Lewis, et al: Distributed and gradual microstructure changes are associated with the emergence of behavioural benefit from memory reactivation doi.org/10.1162/IMAG...
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Pierre Champetier @champetier-pierre.bsky.social · 18/08/2025
🙏 Honored and grateful to the Neurophysiology PIA for awarding me the 𝐏𝐨𝐬𝐭𝐝𝐨𝐜𝐭𝐨𝐫𝐚𝐥 𝐁𝐞𝐬𝐭 𝐏𝐨𝐬𝐭𝐞𝐫 prize at AAIC (world’s largest research conference on Alzheimer’s disease and dementia) for my work on EEG wake slow waves in older adults 🧠 Thanks to all collaborators at ICM! @alzassociation.bsky.social
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Thomas Andrillon @thomasandrillon.bsky.social · 14/08/2025
💤🧠🧪 New article! 🧪🧠💤 After years of effort led by @qualiastructure.bsky.social (Nao Tsuchiya and William Wong), Jenny Windt, Katja Valli, Valdas Noreika and @rherzoga.bsky.social, the Dream database is now published in @natcomms.nature.com **A dream EEG and mentation database** rdcu.be/eAwni
Illustration from Ana Yael
https://www.anayael.com/
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Pierre Champetier @champetier-pierre.bsky.social · 08/08/2025
Interesting study showing that stress shortens REM sleep through an action of the PFC 🧠💤 www.cell.com/current-biol...
cell.com
A top-down control of stress-induced REM sleep shortening
Chouvaeff et al. show that social defeat stress recruits prefrontal projections to the VLPO to selectively shorten REM sleep bouts, even after overall REM amounts return to baseline. This pathway prom...
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Pierre Champetier @champetier-pierre.bsky.social · 01/08/2025
📜 Thrilled to share the last paper of my PhD in J.Sleep Res., in which we delved into wake and sleep of expert meditators (>10,000 lifetime hours🧘‍♂️), notably assessing EEG power, complexity, SW and spindles! Thanks @neuropresage.bsky.social @esrs.bsky.social onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
<em>Journal of Sleep Research</em> | ESRS Journal | Wiley Online Library
Compared to controls, elderly expert meditators exhibited (1) more preserved resting-state brain activity, (2) less altered sleep architecture, and (3) EEG features indicative of heightened cognitive...
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Pierre Champetier @champetier-pierre.bsky.social · 01/08/2025
Interesting work on local sleep in ADHD! 💤 Congrats Elaine, @thomasandrillon.bsky.social and co-authors!
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Pierre Champetier @champetier-pierre.bsky.social · 28/07/2025
Happy to present an online poster at the #AAIC2025, entitled "Wake slow waves during resting-state EEG vary with current and two-year changes in amyloid and neurodegeneration status in older adults with memory complaints". Don't hesitate to contact me on the AAIC platform 😊
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Stanislas Dehaene @standehaene.bsky.social · 23/07/2025
If you are in Paris on October 1-3 : we are organizing a fantastic cognitive neuroscience conference at Collège de France, on topics ranging from language to math, education and consciousness, with many of my favorite scientists ! Full program here: www.unicog.org/seeing-the-m...
unicog.org
Seeing the Mind, Educating the Brain
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Pierre Champetier @champetier-pierre.bsky.social · 16/07/2025
Very interesting preprint linking EEG slowing during REM sleep and in vivo cholinergic denervation in the elderly!
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Donders Institute @dondersinst.bsky.social · 27/06/2025
🎥🌍 Over 1,000 neuroscience talks now free on YouTube and published at @apertureohbm.bsky.social. 🧠 “Now anyone, anywhere can binge-watch brain science like a box set,” says @stephforkel.bsky.social: www.ru.nl/en/donders-i... @alfiewearn.bsky.social @sitek.bsky.social @sofievalk.bsky.social
ru.nl
Global access to brain science: OHBM launches channel with 1,000+ talks | Radboud University
What if you could journey back in time to hear world-leading neuroscientists present the ideas that shaped today's brain science? A new open-access initiative led by researchers from the Donders Insti...
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Pierre Champetier @champetier-pierre.bsky.social · 26/06/2025
Nice paper on a new kind of brain rhythm in wake and REM sleep: iota oscillations (25–35 Hz) 🤯Interesting insight into fast activity beyond traditional bands, eager to know what is the cognitive relevance of this rhythm!
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Pierre Champetier @champetier-pierre.bsky.social · 25/06/2025
Many thanks to @fens.org for awarding me a travel grant to attend the conference in Oslo and present my algorithm for automatic removal of cardiac artefacts 🫀 from EEG signals 🧠 without requiring an ECG 🤯! It will soon be implemented in SASICA toolbox (M.Chaumon). Stay tuned!
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Seth Blackshaw @sethblackshaw.bsky.social · 19/06/2025
New collaborative study out with Mark Wu’s group identifies a thalamic reuniens-zona incerta circuit as both responsive to induced sleep deprivation and essential for mediating recovery sleep. Further perspective on this work follows./1 www.science.org/doi/epdf/10....
science.org
Sleep need–dependent plasticity of a thalamic circuit promotes homeostatic recovery sleep
Prolonged wakefulness leads to persistent, deep recovery sleep (RS). However, the neuronal circuits that mediate this process remain elusive. From a circuit screen in mice, we identified a group of th...
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Delphine Oudiette @oudietted.bsky.social · 20/06/2025
What is on your mind when you are about to fall asleep? Help us unravel the diverse ways humans experience this mysterious transition! Please share your unique experiences by filling up this short online questionnaire: redcap.link/DriftingMinds
redcap.link
Landing Page
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Pierre Champetier @champetier-pierre.bsky.social · 02/06/2025
Happy to have contributed to this new study where we combined multiple approaches (hypnodensities, aperiodic activity, infraslow rhythms, machine learning models...) to dive deeper into idiopathic hypersomnia with long sleep duration 💤 Congrats @arthurlecoz.bsky.social, you worked hard for this! 👨‍💻
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Giulio Bernardi @giuliobernardi.bsky.social · 25/05/2025
Sharon et al., Slow wave synchrony during NREM sleep tracks cognitive impairment in prodromal Alzheimer's disease alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
alz-journals.onlinelibrary.wiley.com
Slow wave synchrony during NREM sleep tracks cognitive impairment in prodromal Alzheimer's disease
INTRODUCTION Alzheimer's disease (AD) disrupts human sleep architecture more severely than normal aging. However, it remains unclear how AD changes oscillatory neural activity during sleep, and whet...
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Scott Cairney @sacairney.bsky.social · 13/05/2025
I’m looking for a postdoc and RA for an ERC-funded project “SLEEPAWAY: Forgetting unwanted memories in sleep”. You’ll use MEG/EEG and fMRI to understand how the sleeping brain remembers and forgets. PLEASE REPOST 😊 Postdoc: tinyurl.com/vr5thp7s RA: tinyurl.com/ycyzkatc
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Pierre Champetier @champetier-pierre.bsky.social · 28/04/2025
Check out our new paper in SLEEP, linking resting-state fMRI connectivity and memory consolidation during sleep in older adults👵💤 Length of spindle trains modulated this relationship Congrats to 1st author Anaïs Hamel! @neuropresage.bsky.social academic.oup.com/sleep/advanc...
academic.oup.com
Resting-state functional connectivity and fast spindle temporal organization contribute to episodic memory consolidation in healthy aging
Abstract. Episodic memory consolidation relies on the functional specialization of brain networks and sleep quality, both of which are affected by aging. F
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Rotem Falach @falach.bsky.social · 28/04/2025
Tired of spending months teaching every new student how to clean and analyze sleep EEG? 🧠💤 We were too. @labnir.bsky.social That's why we built SleepEEGpy- a simple open-source pipeline to make sleep EEG research faster, easier, and standardized! 👇 doi.org/10.1016/j.co...
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Max Planck Florida Institute for Neuroscience @mpfneuro.bsky.social · 25/04/2025
New research from @mpiforbi.bsky.social on European jackdaws reveals that when sleep deprived they prioritize deep sleep, even at the cost of vigilance. This highlights the crucial role of deep sleep. Explore the research, published in @currentbiology.bsky.social: bit.ly/3EFeIKc
Black bird with squares behind that say awake asleep 12 hrs 6hrs
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Robin de Flores @robindeflores.bsky.social · 24/04/2025
🧠 PhD position available! Study polypathology in the medial temporal lobe at the Paris Brain Institute with @lemwisse.bsky.social , @nvillain-alz.bsky.social and myself. This exciting project combines neuroimaging, neuropathology and cognition! Please share widely 🙏
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Pierre Champetier @champetier-pierre.bsky.social · 18/04/2025
New cool paper on auditory processing during sleep using MEG data 🎶 www.sciencedirect.com/science/arti...
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