Closed-loop stimulation may improve memory through more than just boosting slow waves. Grimaldi et al. found that better retention tracked the balance of slow-oscillation vs delta coupling to spindles, along with ⬆️ parasympathetic activity—not simply stronger SO–spindle coupling. buff.ly/JyhmjGn

Acoustic enhancement of slow wave sleep improves memory retention by coordinating brain oscillatory rhythms and autonomic activity

Sleep plays a crucial role in memory consolidation. While the interaction between sleep oscillations and autonomic activity likely influences this process,

buff.ly

Happy Stanislav Petrov Day He passed in 2017. As Encyclopedia Britannica puts it, “He is survived by his two children, two grandchildren, and the entire human race.” If you don't know his story, please take 3 minutes now to learn it. @gchalliance.bsky.social @docsforclimate.bsky.social

Happy Stanislav Petrov Day

Take five minutes to not destroy civilization

sammatey.substack.com

This is an absolutely great metaphor for explaining why experimentally figuring out what the brain is doing is hard. I may have to steal this.

Ben Hayden@benhayden.bsky.social · last wk.

This is a tricky issue and may require philosophers. For example, in an election (assuming it doesnt come down to one vote), no single vote is essential, no vote is more important than any other; any vote could be removed without affecting the outcome. Many neural processes may be election-like.

Are brains and artificial neural networks converging onto universal representations? There is a seductive idea making the rounds in NeuroAI / machine learning: train systems well enough, and they all converge on the same representation of reality (i.e. a unique world model). We have thoughts™ 1/n

The Umwelt Representation Hypothesis: rethinking Universality

Recent studies reveal striking representational alignment between artificial neural networks (ANNs) and biological brains, leading to proposals that all sufficiently capable systems converge on univer...

cell.com

I care about reproducibility, but I find it deeply problematic that the British ecological society is trying to extract free labour from academics (oh no, you get free membership for a year!) to work for them for 3 years on computational reproducibility checks. apply.workable.com/britishecolo...

Associate Editor (Code Integrity and Accessibility) - British Ecological Society

Volunteer role: Associate Editor (Code Integrity and Accessibility) Organisation: British Ecological Society – Methods in Ecology and Evolution Term: 3 years Closing date: 25th Sept 17.00 BST…

apply.workable.com

This is wild. >1/2 of HC synapses disappear in artificial hibernation, come back in same/similar locations & memories intact. ~1/2 of engram synapses-between two memory-tagged cells-are clustered on dendrites, those preferentially spared. Not biggest synapses. 1/ www.science.org/doi/10.1126/...

we have an open position for a post-doc (100%) or PhD student (75%) at Bielefeld University - starting 1.11 or later (there is room for flexibility). jobs.uni-bielefeld.de/job/view/503...

Research Position (m/f/d) (Postdoctoral researcher...

<p>The ‘Biological Psychology and Cognitive Neuroscience’ research group investigates human experience and behaviour at the interface betwee...

jobs.uni-bielefeld.de

📢 We are hiring a full professor in "Intelligence in Biological and Artificial Systems". Come join us at Germany's first and largest cognitive science program. Please share far and wide, and get in touch with any questions. www.uni-osnabrueck.de/en/universit...

Now in Science: How does the brain’s navigation system allocate its limited representational resources during behavior? We found that grid cells sweep toward locations of interest, providing a potential mechanism for allocating spatial attention in the cognitive map.🧵 science.org/doi/10.1126/...

Come and join our replication initiative in visual neuroscience! Low bar for entry, ideal for anyone from a Master’s student looking for a thesis to faculty who want to get back to the bench. 🤓 re-vision-initiative.org

re:vision | Replication Initiative for Visual Neuroscience

Test whether published visual-neuroscience findings (NSD, THINGS, etc.) generalize to broadly-sampled natural images using the LAION-fMRI (LfMRI) 7T dataset.

re-vision-initiative.org

@re-vision-init.bsky.social · 2mo ago

(1/6) Do our visual neuroscience findings actually replicate? And do they generalize beyond the datasets they were found in? We've lauched re:vision, a community-driven initiative to answer these questions, and we are looking for scientistis to participate. re-vision-initiative.org

***New preprint from the lab*** showing “Generative replay across hippocampal-neocortical circuits”. In sleep we show spiking sequences in V1 (sensory neocortex!) that represent information that has not been directly experienced www.biorxiv.org/content/10.6... @bndu.ox.ac.uk @ndcnoxford.bsky.social

Generative replay across hippocampal-neocortical circuits

To make flexible decisions, the brain needs to make inferences between events that were not directly experienced together. In sharp-wave ripple (SWR) events, during periods of rest and sleep, spiking ...

biorxiv.org

Still ongoing! If you are or know a sleep researcher, please share ❤️

Simon Kern@skjerns.de · 2mo ago

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!)

🚨 new lab preprint! Research from @gordonfeld.bsky.social during his DFG personal fellowship to my lab many moons ago: Global structure of new relational knowledge networks is represented in retrosplenial complex, and node-distance in hippocampus www.biorxiv.org/content/10.6...

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

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!)

This is one of my favourite things. Direct replication of MEG and fMRI findings in intracranial recordings and a demonstration that cortical representations update in the right direction around hippocampal ripples.

Blake Richards@tyrellturing.bsky.social · 3mo ago

For a long time I felt like there was a hesitation in neuroscience to ascribe anything like a planning function to the various "replay" events we see in the hippocampus, but I think this is rapidly changing. Here's another new entry in human epilepsy patients: www.nature.com/articles/s41... 🧠📈 🧪

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

“move from preprint to peer-reviewed publication leaves the central claims of most abstracts intact, indicating preprints are a reliable source…papers that were never posted as preprints were retracted at roughly twice the rate of those that were…” www.biorxiv.org/content/10.6...

Tracking claim changes from preprint to publication across 72,644 biomedical studies using large language models

Preprints now disseminate a large share of biomedical research before peer review. Because they have not yet passed peer review, some scientists regard preprint claims as unverified or potentially unr...

biorxiv.org

If you're dying with anxiety because the status of your paper has not changed from "under review" for weeks, you may want to read the Future of Peer Review report from Silverchair that came out recently and replaced the outdated Publons report from 2018... #ScientificPublishing #PeerReview /

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

Are the traveling dynamics of sleep slow waves functionally involved in memory consolidation? A new paper from the lab led by @norarouast.bsky.social shows that auditory stimulation during sleep disturbs SWS and affects the traveling dynamics of SWs - which mediated impaired memory consolidation!

Nora Roüast@norarouast.bsky.social · 3mo ago

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

Big news! 🚀 The preprint for our #NODES Delphi study is out on PsyArXiv osf.io/preprints/psyarxiv/5bt6s_v1 What's this all about? 🧵

The extent of the IF obsession is evident from any and every Google search for a journal - even venues that don't warrant one. This literally makes or breaks journals - non-profits are hit particularly hard - and it stifles innovation and distorts science. 2/2

Meet our new Alliance Fellow Pablo Rojas! He will be working with the groups of @gordonfeld.bsky.social and Georgia Koppe www.linkedin.com/posts/health...

#healthlifesciencealliance #interdisciplinaryresearch #artificialintelligence #cognitivescience #neuroscience #machinelearning #collaboration #innovation #translationalresearch #heidelberg | Health + ...

Meet our new Alliance Fellow Pablo Rojas! Could you tell us a bit about the work you do? Which field do you work in and who are your PIs? I work at the intersection of cognitive science and artificial...

linkedin.com

🧠 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

Der Tankrabatt kostet in zwei Monaten übrigens knapp 25-mal so viel wie die von der Bundesregierung versprochene und jetzt gestoppte Erhöhung der Wohnkostenpauschale beim BAFöG.

Paying peer reviewers works. Expanded Fast & Fair experiment @biologyopen.bsky.social: • 5.5 vs 37.7 working days to decision with reviews • ~3 vs ~9 reviewer invitations per manuscript • no reduction in editor-assessed review quality • similar acceptance rates www.biorxiv.org/content/10.6...

Honored to be giving a keynote at Psychology and the Brain (PuG) this week in Heidelberg. Since starting the lab in 2019, we’ve had many wonderful collaborations across Germany, and I’m excited to share our work on the computational neuroscience of interoception. See you there! pug2026.org

Biopsych Community, we are ready and can‘t wait to welcome you to Heidelberg! #PUG2026