Are brain rhythms a steady hum or a brief buzz? Both. Alpha and beta activity are relatively sustained, helping maintain ongoing brain state, supporting its role in top-down control. Universal rhythmic architecture uncovers two modes of neural dynamics www.nature.com/articles/s41... #neuroscience

Universal rhythmic architecture uncovers two modes of neural dynamics - Nature Communications

Brain oscillations are traditionally regarded as sustained rhythms. Here, the authors show that there are both high and low-rhythmicity bands, characterised by brief bursts, which can signal responses...

nature.com

📢 New preprint with @aidanhorner.bsky.social and @marwimber.bsky.social investigating how schematic violations shape memory for sequences of events. Memory Benefits for Schematically Incongruent Sequences Depend on the Type of Violation osf.io/preprints/ps...

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

Replay of procedural memory is independent of the hippocampus 👀👀 www.nature.com/articles/s41...

Replay of procedural memory is independent of the hippocampus - Nature Neuroscience

Thompson, Rollik and colleagues show that, during sleep, the brain replays procedural memories in the striatum independently of the hippocampus. Replay content was shaped by prior reward and error out...

nature.com

Can MEG provide a non-invasive window onto human ripple physiology during sleep? Our new preprint suggests it can. Led by the fantastic @fabian31415.bsky.social. Many thanks to our collaborators @olejensen.bsky.social , @doellerlab.bsky.social , and @tobiasstaudigl.bsky.social #Neuroskyence

Fabian Schwimmbeck@fabian31415.bsky.social · 2w ago

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...

Sensing your body (‘Interoception’) is everywhere in theories of mental health. But when we tested how well hundreds of people sensed their heart and lungs, the link to symptoms was almost nowhere to be found. 💣 🚨New @natmentalhealth.nature.com paper 🚨🎉 asks why 🧵 www.nature.com/articles/s44...

Jung, Lambon Ralph and colleagues report an 8057 patient ALE meta-analysis for structural and functional neuroimaging across bvFTD, nfvPPA, SD/svPPA and lvPPA: doi.org/10.1093/braincomms/fcag223

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 our new paper we use 2 fMRI studies to put SLIMM to the test. We find the U-shape function of memory and expectancy, yet no differential hippocampal involvement at the different ends of the expectancy spectrum - highlighting the need to revisit SLIMM. doi.org/10.1098/rstb...

Predictions and declarative memory encoding: two fMRI paradigms provide slim pickings for SLIMM

Abstract. Memory is often better for both highly unexpected and highly expected information. To explain this U-shape relationship between memory and expect

doi.org

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

Our take on what do we remember after sudden perceptual resolution is now published as part of a wonderful theme issue on the role of hippocampal predictions put together by @mariamaly.bsky.social, @peterkok.bsky.social and @barense.bsky.social. Go check out the full list of papers!

Volume 381 Issue 1954 | Philosophical Transactions of the Royal Society B | The Royal Society

Influential themed journal issues across the life sciences.

royalsocietypublishing.org

Johannah Völler@jvoeller.bsky.social · 11mo ago

👩‍💻 New preprint out (FIRST one of my PhD journey) with the incredible @lindedomingo.bsky.social @ortiztudela.bsky.social @gonzalezgarcia.bsky.social "From sudden perceptual learning to enduring engrams: A representational perspective" 🧠 doi.org/10.31234/osf...

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

📣 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 #INMINDS interview with @trisbek.bsky.social (U of Cambridge) on neurophenomenology, altered states, and the use of the ‘Temporal Experience Tracing’ technique within and beyond the lab. Out in @cienciacog.bsky.social. English version: www.cienciacognitiva.org?p=2665 (1/2)

Cortical gamma oscillations riding on top hippocampal ripples help “tune” how the cortex responds later. www.nature.com/articles/s41... #neuroscience

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

I am recruiting a postdoctoral researcher and a PhD student, funded by a new ERC grant. The grant focuses on the role of the hippocampus in visual perception, using 7T fMRI (hippocampal subfields, cortical layers) and MEG+iEEG. The intended start dates for both positions are in early 2027. 🧠🟦 1/3

New lab paper ! "Shared neural geometries for bilingual semantic representations in human hippocampal neurons" led by @xinyuanyan.bsky.social. 🧵 www.sciencedirect.com/science/arti...

Shared neural geometries for bilingual semantic representations in human hippocampal neurons

The human brain has the remarkable ability to comprehend and express similar concepts in multiple languages. To understand how it does so, we examined…

sciencedirect.com

Do we perceive animacy itself, beyond its lower-level visual correlates? In @elife.bsky.social, @chazfirestone.bsky.social and I leverage “visual anagrams” — images whose interpretations change with orientation — to suggest the answer is: yes! elifesciences.org/reviewed-pre...

How does an intense event change what we remember about the rest of our day? ​Our recent study (N=285) challenges the idea of a uniform emotional memory boost. We found that individuals split into two distinct modes of organizing threat-relevant information.🧵 link.springer.com/article/10.3...

Divergent modes of episodic organization underlie whether emotional learning enhances memory across event boundaries - Psychonomic Bulletin & Review

Episodic memory organizes continuous experience into discrete events, often limiting integration across temporal gaps. Emotionally salient experiences, such as learning about threats, may nevertheless...

link.springer.com

🧵 How does the human brain turn experiences into memories? During my four years of PhD at Oxford, I investigated this question through a collaboration between Oxford, Toulouse, and Paris, recording directly from the human brain during a relational memory task.

Are gist-like shifts in memory over time evidence of engram transformation? Really? Or partly a general response bias? At #APS2026 in Barcelona this week, Mattia Delmarco will present our work on object typicality and visual memory. psychologicalscience.confex.com/psychologica...

📢 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...

We are happy to share our research, recently published in Nature Communication! Using a naturalistic memory task, we show that life events are represented in the brain in different formats, highlighting the flexibility of the memory system. www.nature.com/articles/s41...

Episodic events are flexibly encoded in both integrated and separated neural representations - Nature Communications

People often need to remember unique details while also finding connections across experiences. Here, the authors show that the brain flexibly links related events while preserving their distinct feat...

nature.com

Now out in Nature Neuroscience: "Fixation duration on natural scenes is explained by memory encoding not processing demand". www.nature.com/articles/s41... Our eyes don't linger because recognition is hard; they linger to remember. Let me take you on a quick tour. 🧵

Fixation duration on natural scenes is explained by memory encoding not processing demand - Nature Neuroscience

By combining magnetoencephalography and eye tracking, this study sheds light on why people fixate on some parts of natural scenes longer than others. Rather than visual complexity, fixation durations ...

nature.com

New paper with @paulm-k.bsky.social and Mark Stokes on how we switch internal attention between working memory contents. Beta-band oscillations tracked the magnitude and success of these switches. www.jneurosci.org/content/46/1... #neuroskyence

Human Beta Oscillations Reflect Magnitude and Fidelity of Priority Shifts in Working Memory

Flexible prioritization in working memory (WM) is supported by neural oscillations in frontal and sensory brain areas, but the roles of different oscillations remain poorly understood. Recordings in h...

jneurosci.org

Does the brain perform inference under pressure? Our fMRI study led by Kai Schueren shows acute stress impairs our ability to link memories of past events with new information.🔗 The work is out now in www.science.org/doi/10.1126/... and also covered in www.nature.com/articles/d41...

🔔 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!

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...