Summer Preprint Alert 🔥🚨 Breathing isn't just for oxygen; it’s a rhythmic pacemaker for the sleeping brain. Our new preprint shows that the respiratory cycle actually gates memory reactivation during NREM sleep! 🧠😴💨 👇🧵(1/8)

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · yesterday

The breathing cycle gates memory reactivation during human NREM sleep https://www.biorxiv.org/content/10.64898/2026.07.29.741474v1

Excited to finally share our new paper in @natcomms.nature.com: Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval www.nature.com/articles/s41... With @s-michelmann.bsky.social and @doellerlab.bsky.social

Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval - Nature Communications

How past experiences are reconstructed from memory remains unclear. Here the authors used intracranial EEG to show that hippocampal ripples reshape the geometry of cortical representations, supporting...

nature.com

Can we study MTL ripples non-invasively? New preprint! We show that source-resolved MEG tracks ripple-like activity during sleep that: • localizes to the MTL • follows the canonical SO–spindle hierarchy • matches an iEEG benchmark • indexes memory reactivation www.biorxiv.org/content/10.6...

Non-invasive tracking of ripple-like activity during human sleep using MEG

Hippocampal ripples are considered a key mechanism of sleep-dependent memory consolidation. In humans, however, their direct investigation has relied on invasive recordings from patients with epilepsy...

biorxiv.org

Are you a sleep researcher? Then we're interested in your opinion on preregistrations! Help advance the field by filling out this short (5-minute) survey redcap.link/1zg4tezm (Any career stage, doesn't matter if you've preregistered before or not, we need you. Please share!)

📣 In meiner Arbeitsgruppe (LMU München) ist eine PhD-Stelle zu besetzen. Gesucht werden motivierte Bewerber:innen mit Interesse an experimenteller kognitiver Neurowissenschaft. Bewerbungsfrist: 10.08.2026. Bewerbungen bitte per Email. Mehr Infos hier: job-portal.lmu.de/jobposting/f...

Excited to share my first #preprint with @matthiasnau.bsky.social on how gaze behavior shapes brain activity during eyes-closed rest and sleep! Gaze-dependent activity was widespread even during sleep, including in many visual cortices, and altered brain-wide functional connectivity! 🧵 1/8

Brain-wide gaze-dependent activity during eyes-closed rest and sleep

Gaze behavior and brain activity are tightly coupled during perception and mental imagery. Whether this coupling extends to eyes-closed states remains largely unknown, primarily because measuring eye ...

biorxiv.org

🧠 New opportunity for a combined PhD+Graduate Teaching Assistant position, see especially @tomdonoghue.bsky.social's and mine project on spectral parameterization models across cognitive contexts: www.jobs.manchester.ac.uk/Job/JobDetai...

Graduate Teaching Assistant:Oxford Road

jobs.manchester.ac.uk

We're proud to introduce Brainbow, a new Slack workspace for LGBTQIA+ people in neuroscience worldwide. Brainbow aims to provide a safe space, even for those in the closet (emails & names are optional). It also includes channels for communities within the LGBTQIA+ umbrella (eg, trans/non-binary) 1/2

Join Brainbow on Slack

Slack is a new way to communicate with your team. It’s faster, better organized, and more secure than email.

join.slack.com

We're finally getting the tools to study replay in humans. But why bother? What can we learn from it that we don't know from rodent recordings? Our thoughts are now out in a new TICS Forum Great fun writing this w @smfleming.bsky.social + @maritpetzka.bsky.social authors.elsevier.com/sd/article/S...

What can we learn from studying replay in humans?

Noninvasive methods are making it possible to study neural replay in humans. Although focused on alignment with rodent findings, human research often …

authors.elsevier.com

(1/2) Hiring! 🦠🧠 Postdoc position in my group @univie.ac.at on microbiome-brain interactions as part of the ERC-funded project “MemoryLane: Neural plasticity through the lens of gut-brain interactions”. 📍 Vienna, Austria 📅 Application deadline: 2 Aug 2026 ℹ️ shorturl.at/2E4sf

📣 Thrilled to share our recent work in @natneuro.nature.com. Using direct recordings from the human hippocampus and visual cortex, we asked how the brain prepares to encode information when upcoming events are unpredictable, and what ripples do in that process. www.nature.com/articles/s41...

Human hippocampal ripples tune cortical responses based on predicted uncertainty - Nature Neuroscience

Using direct recordings from the human brain, Frank et al. show that hippocampal ripples increase ahead of unpredictable events and tune the visual cortex to respond faster and more strongly to surpri...

nature.com

New preprint! We show low arousal states promote hippocampal ripple genesis in sleep and wake. This bridges rodent work, where ripples predominate during sleep, with human studies reporting ripples during active behavior, identifying low arousal as a common mechanism www.biorxiv.org/content/10.6...

Arousal state modulates human hippocampal ripples

Hippocampal ripples are transient, high-frequency oscillations linked to memory replay and consolidation. Ripples are well-characterized in rodents to occur during periods of behavioral inactivity (i....

biorxiv.org

Ever wondered what having auditory stimulation does to the sleep itself? Random stimulation disturbs SWS, memory, and travelling dynamics of slow waves. New paper in iScience with @mschoenauer.bsky.social, @denizkumral.bsky.social, and Steffen Gais! doi.org/10.1016/j.is... #sleep #neuroskyence

🧠 New preprint! How well can current algorithms *actually* detect neural "replay" in the human brain under absolutely optimal conditions? We built FASTIMAGES: A combined MEG + fMRI benchmark with KNOWN neural sequences, so replay-detection methods can finally be validated against a ground truth.

FASTIMAGES: Validating replay detection methods in human neuroimaging

A combined MEG + fMRI benchmark dataset with known neural sequences to validate replay detection methods (TDLM and SODA).

cimh-clinical-psychology.github.io

Interested in human replay and solid methods? Jointly with @skjerns.de we're releasing a benchmark dataset with known ground-truth neural sequences in MEG & fMRI, for developing & validating replay methods. First test: existing methods show similar effect sizes, but room to improve shorturl.at/6TgIr

FASTIMAGES: Validating replay detection methods in human neuroimaging using a combined MEG and fMRI dataset

Studies in rodents and humans using invasive electrophysiology have established that neural replay is a ubiquitous phenomenon in the brain that is associated with a wide range of cognitive functions, ...

shorturl.at

New paper from our group: using simultaneous EEG-fMRI, we investigated the neural mechanisms underlying individual NREM sleep slow waves. Our findings suggest that slow waves are not a homogeneous phenomenon and may reflect distinct physiological processes. www.nature.com/articles/s42...

Thalamic involvement defines distinct slow-wave subtypes in NREM sleep - Communications Biology

Using simultaneous EEG-fMRI, we identify two types of NREM slow waves with distinct thalamic profiles. Large, synchronized waves involve early thalamic activation and arousal markers, whereas smaller ...

nature.com

#PUG2026 social evening, 23:35: Nobody wants to take the last candy. Great to see everybody :)

Thalamic oscillations distinguish natural states of consciousness in humans

Thalamic oscillations distinguish natural states of consciousness in humans

Nature Human Behaviour, Published online: 27 May 2026; doi:10.1038/s41562-026-02446-zChowdhury et al. report the discovery of a 19–45-Hz thalamic oscillation that is present during human wakefulness and REM sleep, but not NREM sleep.

dlvr.it

📢 New paper out in @nathumbehav.nature.com: we identify a previously undescribed fast thalamic oscillation (~19–45 Hz) in rare intracranial human recordings that appears specifically during wakefulness and REM sleep — but disappears during NREM sleep. www.nature.com/articles/s41...

🔔 Preprint: “Hippocampal ripples evoke a stereotyped cortical response followed by spindle-mediated network synchronization.” Combining iEEG+scalp EEG during sleep, we show that hippocampal ripples leave a decodable cortical fingerprint and are followed by brain-wide spindle synchronization!

📣 First paper from the lab! 🎉🧠 Led by brilliant MRes students Aysha and Zhiyun, we found exploring a novel, unpredictable VR environment retroactively enhanced memory in humans: rdcu.be/fc496

So excited to see this out today! Huge congrats to @oliviachristiano.bsky.social, who led this project.

Imaging Neuroscience@imagingneurosci.bsky.social · 3mo ago

New paper in Imaging Neuroscience by Olivia R. Christiano and Sebastian Michelmann: Reliability and signal comparison of OPM-MEG, fMRI & iEEG in a repeated movie viewing paradigm doi.org/10.1162/IMAG...

Very excited to share our latest paper led by @nbinish.bsky.social in @natneuro.nature.com We demonstrate how a communication subspace channels higher-dimensional PFC dynamics into lower-D motor activity to enable efficient behavior using human iEEG. www.nature.com/articles/s41... #neuroskyence

A communication subspace relays context-dependent actions from human prefrontal to motor cortex - Nature Neuroscience

Context-dependent behavior selects actions according to task demands. Using direct brain recordings in humans, Binish et al. uncover how coordinated population activity efficiently channels informatio...

nature.com

New paper out in J. Neuro! We used MEG and pattern classifiers to ask: if a memory is reactivated in the brain, does that mean you'll recall it? Short answer: no. www.jneurosci.org/content/46/1... Read on for the details! [1/7] #neuroscience #memory

Alpha Oscillations Track the Projection of Reactivated Memories into Conscious Awareness

By definition, episodic memory is a conscious phenomenon. Memory traces reactivated by the hippocampus and reinstated in the sensory cortices need to enter conscious awareness for them to be re-experi...

jneurosci.org

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.

Misinterpreting Electrophysiology in Human Cognitive Neuroscience, by Tzvetan Popov 👇👀🧠 ... in psychophysiological experiments relying on vision, EEG components relate to cognition indirectly through their more direct relationship with oculomotor action... onlinelibrary.wiley.com/doi/10.1111/...

Does aperiodic activity index neural excitability? Single-unit and LFP recordings during optogenetic interneuron suppression show that aperiodic activity scales with firing, but it depends on context and oscillatory power. New preprint with @juliaveit.bsky.social. www.biorxiv.org/content/10.6...

The Obleser lab will be hiring soon! New postdoc (fully funded) and new PhD or part-time postdoc position (soft-money funded). Spread the word. Start in Sept/Oct. Watch out for official announcements! Please be in touch. auditorycognition.com obleserlab.com hoerhanse.de lemmi.uni-luebeck.de

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...

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...

cell.com

1/N: Dear colleagues, I would like to share a new paper on the subiculum, part of my PhD with the Neural Computation Group @andrejbicanski.bsky.social @mpicbs.bsky.social . We present “A theory of subicular function and generalized vector coding” that we call Disco. www.biorxiv.org/content/10.6...