📣New paper! How does the sleeping brain help us to integrate new experiences while managing memories from the past? For his PhD work, @sabbaspoor.bsky.social recorded hippocampal ensembles in freely moving monkeys and found something unexpected. 🧵1/n www.nature.com/articles/s41... 🧪🧠📈👩‍🔬#OpenAccess

Experience reorganizes content-specific memory traces in macaques - Nature Neuroscience

In macaques, old memories, relative to new ones, are supported by more stable and interconnected cell assemblies. New-biased and old-biased assemblies reactivate during overnight sleep and can sometim...

nature.com

Interested in new ways to test models of memory consolidation? I'm taking this to the extreme with new model systems and naturalistic behavior and it is guaranteed to be cool 🥶 Come to poster 414 this afternoon (Thursday)! #FENS2026 #memory #hippocampus #neuropixels #hibernation #peromyscus

🌟 NEW OCTRON RELEASE! 🌟 Want to track your animals using the command line? You can now train models and predict videos with single prompts in a terminal! Ideal for batch jobs, headless servers, and remote machines. Big shout-out to @roald-arboel.com for helping with this release!

"Ripple occurrence consistently tracked low arousal: rates were maximal in NREM sleep, small-pupil wake states, and slow heart rate periods across sleep and wake... ripple-like activity outside the hippocampus showed an opposite modulation, increasing with high arousal."

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

If our experiences unfold like a stream over time, how would this stream unfold in other animal species? Together with @birchlse.bsky.social and @anilseth.bsky.social, a review of temporal illusions and a path for temporal phenomenology in animals! a 🧵/n www.cell.com/trends/cogni...

This paper is absolutely wild and amazing. www.science.org/doi/10.1126/...

Homing pigeon navigation relies on superparamagnetic macrophages under overcast conditions

Birds use a variety of navigational strategies, including the geomagnetic field, especially when other cues are not available, such as under overcast or nocturnal conditions. Magnetite particles in th...

science.org

Story time friends... Ring attractor networks rely on fine-tuned symmetric connectivity. The fly head direction network has ring attractor dynamics but heterogeneous connectivity. How is this possible? 1/🧵 Link: www.biorxiv.org/content/10.6...

Excited to share I will be joining UC Davis as an assistant professor starting July 2027! Thank you dearly to all mentors and friends who have supported me over the years ❤️ and Cal Poly friends, I'll miss you!

New paper from the lab! "Plasticity and language in the anaesthetized human hippocampus" www.nature.com/articles/s41...

Plasticity and language in the anaesthetized human hippocampus - Nature

In the hippocampus, complex processing of sensory stimuli occurs even in the unconscious state.

nature.com

I’m very sad to share that Howard Fields has died. He made seminal discoveries in pain modulation, placebo, and addiction. He was also a wonderful mentor and friend who taught me how to think about the brain and the joy of scientific discovery. www.iasp-pain.org/publications...

In Memory of Howard L. Fields - International Association for the Study of Pain (IASP)

IASP is deeply saddened to hear of the recent death of Honorary IASP Member, Prof Howard Fields, and we offer our condolences to his family, friends and colleagues. We are […]

iasp-pain.org

🚨 New Preprint 🚨 I’m excited to share the first paper from my postdoc. We found age differences in the timescales of neural activity in the hippocampus during movie viewing 👀 These timescales were related to memory specificity in an interesting way (spoiler: the hippocampus may not be special!?)

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · 3mo ago

Age Differences in Hippocampal Neural Timescales During Movie-Viewing https://www.biorxiv.org/content/10.64898/2026.05.05.723065v1

Check out this very cool new paper on rat ultrasonic vocalizations emitted in a naturalistic habitat--some surprising findings, and cool quantitative analyses done by Jordan Saltzman in the Ron Frostig Lab in Neurobiology & Behavior @ucirvine.bsky.social www.cell.com/iscience/ful...

Correlating ultrasonic communication with behavior in a small-scale rat colony living in a naturalistic habitat

Rodent behavior; Biological sciences; Zoology

cell.com

The final typeset version of this paper is online now! Check out the new analysis approach that Narjes developed to track changes in event structure at multiple timescales, allowing us to see how event dynamics in a film clip change with repeated viewing

Mariam Aly@mariamaly.bsky.social · 4mo ago

How do the brain’s event representations change as we gain familiarity with an experience? Brain regions’ representations can become coarser or finer as events become familiar. Slow-timescale structure predicts memory. Excited to share this work w/ Narjes Al-Zahli & @chrisbaldassano.bsky.social!

NEWS: The ERC Scientific Council has listened to the concerns from members of the research community about changes to the re-submission rules, intended to manage the surge in demand for grants. The Scientific Council will readjust some of the changes: link.europa.eu/TBqRQJ

ERC Scientific Council readjusts rules for reapplication

The ERC Scientific Council has listened to the concerns from members of the research community about the recent announcement on changes to the re-submission rules. The changes, intended to manage the ...

link.europa.eu

Aha! Moments are due to time perception. Because we figured something out in less time than we thought we would. Neat idea!

Cognition@cognitionjournal.bsky.social · 3mo ago

A computational theory of Aha! moments! New paper explaining why Aha! moments occur & why they feel so good. TLDR: They are a form of meta-cognitive prediction errors i.e. they occur when we surprise ourselves about our own abilities! @rachitdubey.bsky.social www.sciencedirect.com/science/arti...

Now published at @elife.bsky.social. Very smooth process and kind, constructive reviewers. Revised version in the works :) elifesciences.org/reviewed-pre...

Ben Kanter@beneuroscience.bsky.social · 6mo ago

Happy belated publication of some of my PhD work! Building on our findings that grid field firing rate changes can cause hippocampal remapping and memory impairment, here we show that this effect has a fixed input-output relationship, and we can even predict how place cells will remap!

Sadly, applications to the Advanced Python summer school have dropped significantly over the past 2 years. Plus, there'll be no external funding for the 1st time in *17 years*. Likely all because of GenAI - but programming skills still matter🔥 Deadline May 3, please help by sharing: aspp.school

How children remember time changes dramatically as they grow up & understanding that shift matters more than you might think. Two new papers from the lab's newest PhD, Dr. Owen Friend, explore what that difference looks like & what it tells us about the developing brain 🧠

Can we really measure replay in humans using MEG with current methods? In our most recent paper we simulated replay under realistic conditions via a novel hybrid approach with astonishing results. we're delighted that it has now been published @elife.bsky.social! elifesciences.org/articles/108...

TDLM-Resting-State Simulation

How sensitive is TDLM really? Can we actually find replay when we know it is present?

cimh-clinical-psychology.github.io

Explore “Brainstorming,” @thetransmitter.bsky.social's new LinkedIn newsletter that looks at how neuroscientists are solving research challenges. #neuroskyence www.linkedin.com/pulse/nontra...

The nontraditional model organism renaissance

Each month, The Transmitter explores creative approaches neuroscientists are taking to solve problems that arise in their research. In this installment, we see how researchers work backward from speci...

linkedin.com

Reactivation during sleep segregates the neural representations of episodic memories https://www.biorxiv.org/content/10.64898/2026.04.08.717230v1

Researchers reveal the neural basis of evolving new capabilities by investigating behavioral and morphological differences between deer mouse subspecies. #neuroskyence By @siddhantpusdekar.bsky.social www.thetransmitter.org/evolution/ar...

Neural circuits encode prior knowledge of temporal statistics www.nature.com/articles/s41...

Neural circuits encode prior knowledge of temporal statistics - Nature Neuroscience

This study shows that cerebellar circuits learn and encode prior probabilities of event timing. Cell-type-specific neural activity reflects environmental statistics and guides predictive motor behavio...

nature.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...

Very psyched about this work!

Camille Grasso@grassocamille.bsky.social · 4mo ago

Happy to share our new preprint: Uncovering the representational geometry of durations Is time represented along a single mental timeline? We combine behaviour + EEG to show that duration is organised in a richer, multidimensional space. w/ @lnalborczyk.bsky.social & @virginievanw.bsky.social

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...

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.

nature.com

My main postdoc work is now published: www.nature.com/articles/s41...! We (myself, Isabel Low, Frances Cho, and @lgiocomo.bsky.social) discovered task-relevant remote representations in entorhinal cortex independent of CA1. #paperthread below! 1/13

How do the brain’s event representations change as we gain familiarity with an experience? Brain regions’ representations can become coarser or finer as events become familiar. Slow-timescale structure predicts memory. Excited to share this work w/ Narjes Al-Zahli & @chrisbaldassano.bsky.social!

Repeated Viewing of a Film Clip Changes Event Timescales in The Brain

Many everyday experiences share a recurring structure: routines, familiar routes, rewatched films, and replayed songs. How do repeated encounters with such structure alter the brain’s representations ...

jneurosci.org

Thank you #BonnBrain26 for selecting me to present my work. I had a blast and it is so much fun being back home! And thank you to all the people who voted my talk (second) best! I will dedicate todays speaker dinner to you. Today, come around for a chat at my poster A13. #BonnBrain

Happy to share some of the work done in our lab in this mega-thread of nine (!) papers/preprints (+1 sneak peek) from the last six months. Here goes (in no particular order)! **Please repost** and let me know if you need access to any of the PDFs! #sleeppeeps #sleep #neuroscience 1/12