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Philipp Büchel

@philippbuchel.bsky.social
146 followers 179 following 4 posts

PhD student in Neuroscience @UniklinikBonn (supervised by Lukas Kunz) studying memory, previously @OxExpPsy & @univgroningen

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Reposted by Philipp Büchel
Nico Schuck @nicoschuck.bsky.social · 11/06/2026
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
shorturl.at
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, ...
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Randolph Helfrich @randolph-helfrich.bsky.social · 20/04/2026
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...
biorxiv.org
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Simon Kern @skjerns.de · 10/04/2026
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...
cimh-clinical-psychology.github.io
TDLM-Resting-State Simulation
How sensitive is TDLM really? Can we actually find replay when we know it is present?
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Andrej Bicanski @andrejbicanski.bsky.social · 03/04/2026
New book on navigation (open access). The result of the Ernst Strüngemann Forum 2024. Was great to be there and discuss for a week with 50+ wonderful colleagues. Many thanks to the organizers, Julia Lupp + ESF team, the editors @noranewcombe.bsky.social, Ken Cheng link.springer.com/book/10.1007...
link.springer.com
Challenges in Navigation Research
This open access book explores navigation across species using a multidisciplinary approach to address challenges in research and clinical applications.
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Marcel S. Kehl @mskehl.bsky.social · 31/03/2026
🔔PREPRINT: Sleep ripples drive single-neuron reactivation for human memory consolidation 1/9: How does sleep support human memory consolidation? To test this, we recorded hundreds of neurons in the human medial temporal lobe (MTL) across learning, wakefulness, and sleep. doi.org/10.64898/202...
doi.org
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Doeller Lab @doellerlab.bsky.social · 04/02/2026
🧠 The Mind Meeting Series is back! Organized by us & Bicanski Lab, featuring leading scientists in cognitive and computational neuroscience. Our first speaker is @lukaskunz.bsky.social (University Hospital Bonn). 🗓 February 12 | 3:00 PM 📍 In person (Zoom available) We look forward to seeing you!
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Fabian Schwimmbeck @fabian31415.bsky.social · 18/01/2026
How are memories consolidated during sleep? Excited to share another preprint: hippocampal SWRs route memory content to the cortex via interregional co-reactivation of concept cells, optimized by slow-oscillation–spindle coupling. With the great @tschreiner.bsky.social @humansingleneuron.bsky.social
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Fabian Schwimmbeck @fabian31415.bsky.social · 13/01/2026
How does the brain replay memories during sleep? Excited to share our new preprint, the outcome of an extensive effort led by Johannes Niediek, showing that reactivation of human concept neurons reflects memory content rather than event sequence.
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Esteban @estebanbt.bsky.social · 04/12/2025
I'm happy to share my debut as first-author with the recent publication of our article in #JNeurosci: www.jneurosci.org/content/earl... Big thanks again to @tschreiner.bsky.social and the whole team who made this possible! 🧠🌬️
jneurosci.org
Respiration shapes the neural dynamics of successful remembering in humans.
Respiration has been shown to impact memory retrieval, yet the neural dynamics underlying this effect remain unclear. Here, we investigated how respiration shapes both behavioral and neural expression...
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Tim Guth @timaguth.bsky.social · 11/08/2025
Excited to share our new paper on theta-phase locking of single neurons during human spatial memory: www.nature.com/articles/s41... With @lukaskunz.bsky.social, Joshua Jacobs, and our colleagues from the University of Freiburg
Neuronal theta-phase locking increased during periods of elevated theta power, when aperiodic activity exhibited steeper slopes, and when clear theta oscillations were detected. Theta-phase locking was similarly strong during the successful and unsuccessful encoding and retrieval of memories. Some neurons changed their preferred theta phases between encoding and retrieval.
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Xiongbo Wu @xiongbowu.bsky.social · 30/07/2025
🚨 New preprint alert! Excited to share our latest work on alpha/beta activity, eye movements, and memory. Across 4 experiments combining scalp EEG/iEEG with eye tracking, we show that alpha/beta activity directly reflects eye movements, and only indirectly relates to memory. 👇 Highlights (1/7):
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Elkan Akyurek @elkanakyurek.bsky.social · 03/07/2025
Jelmer Borst and I are looking for a PhD candidate to build an EEG-based model of human working memory! This is a really cool project that I've wanted to kick off for a while, and I can't wait to see it happen. Please share and I'm happy to answer any Qs about the project! www.rug.nl/about-ug/wor...
rug.nl
Vacatures bij de RUG
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Marta Silva @martamasilva.bsky.social · 01/07/2025
🧠 Paper out! We investigated how hippocampal and cortical ripples support memory during movie watching. We found that: 🎬 Hippocampal ripples mark event boundaries 🧩 Cortical ripples predict later recall Ripples may help transform real-life experiences into lasting memories! rdcu.be/eui9l
rdcu.be
Movie-watching evokes ripple-like activity within events and at event boundaries
Nature Communications - The neural processes involved in memory formation for realistic experiences remain poorly understood. Here, the authors found that ripple-like activity in the human...
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Simon Kern @skjerns.de · 16/06/2025
preprint alert 🚨 1/ Can we accurately detect sequential replay in humans using Temporally Delayed Linear Modelling (#TDLM)? In our recent study, we could not find any replay and decided to dig deeper by running a hybrid simulation with surprising results. Link to preprint & details below 👇
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Xianhui He @xianhuihe.bsky.social · 16/06/2025
How does our brain learn that thunder follows lightning? We don't just remember two separate events; we build a predictive model to anticipate the world. My research dives into this very question: how we learn and predict the order of events. 🧵👇 1/9 #neuroscience #memory #sleep
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Tobias Ackels @tobiasackels.bsky.social · 18/05/2025
🚨 Preprint alert! 🚨 Can mice estimate the distance to an odour source? New work led by Cristina Marin and colleagues, jointly supervised by @andreas-t-schaefer.bsky.social at the @crick.ac.uk and myself. Spoiler alert: Yes, they can! Read the paper here: bit.ly/43A9tF9 Short 🧵 below
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Alex Kirshner @alexkirshner.com · 16/05/2025
this is a letter to the editor from a high school track runner who came in second to a trans girl in a race. her state house rep in maine started talking about it. so she wrote this: www.pressherald.com/2025/05/14/r...
Rep. Laurel Libby, R-Auburn, recently used my second-place finish in the 1,600-meter run, and that of my teammate in the 800-meter run, to malign Soren Stark-Chessa, the trans-identified athlete who finished first.

One of the reasons I chose to run cross-country and track is the community: Teammates cheering each other on, athletes from different schools coming together, and the fact that personal improvement is valued as much as, if not more than, the place we finish.

Last Friday, I ran the fastest 1,600-meter race I have ever run in middle school or high school track and earned varsity status by my school’s standards. I am extremely proud of the effort I put into the race and the time that I achieved. The fact that someone else finished in front of me didn’t diminish the happiness I felt after finishing that race. I don’t feel like first place was taken from me. Instead, I feel like a happy day was turned ugly by a bully who is using children to make political points.

We are all just kids trying to make our way through high school. Participating in sports is the highlight of high school for some kids. No one was harmed by Soren’s participation in the girls’ track meet, but we are all harmed by the hateful rhetoric of bullies, like Rep. Libby, who want to take sports away from some kids just because of who they are.

Anelise Feldman
Freshman, Yarmouth High School
Yarmouth
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Reposted by Philipp Büchel
Esteban @estebanbt.bsky.social · 24/04/2025
Very excited to share the first preprint of my PhD thesis! Together with @tschreiner.bsky.social, we investigated how respiration coordinates signature neural expressions of successful remembering during memory retrieval. 🫁🧠 🧵(1/8)
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Bernhard Staresina @bstaresina.bsky.social · 07/04/2025
join us at @oxexppsy.bsky.social | @ox.ac.uk!
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Simon Faghel-Soubeyrand @simonfsoubeyrand.bsky.social · 25/03/2025
Preprint alert! 🚨 1/ How does deep sleep reshape our memories? Our new study shows that slow-wave sleep (SWS) reorganises episodic memory networks, shifting recall from the parietal cortex to the anterior temporal lobe (ATL). With Polina Perzich and @bstaresina.bsky.social . A thread below👇
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Jan Theeuwes @jthee.bsky.social · 27/02/2025
We used a brain "pinging" again and found that distractor suppression is reactive rather than proactive, meaning attention is first drawn to the distractor before being suppressed.
doi.org
Neural mechanisms of learned suppression uncovered by probing the hidden attentional priority map
Learned suppression of distractor locations in visual search emerges through reactive mechanisms that involve initial spatial selection prior to suppression.
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Elkan Akyurek @elkanakyurek.bsky.social · 14/02/2025
New preprint by Michael Wolff and me, on accelerating visual perception! The perception of an image can be accelerated by another before it. But how does this happen in the brain? Michael developed a new method to quantify the temporal shift across time in EEG. 1/3 www.biorxiv.org/content/10.1...
biorxiv.org
Variable processing shifts during perceptual acceleration: Evidence from temporal integration
The perception of a stimulus can be accelerated by another that precedes it. Research to date has focused on quantifying this acceleration, and localizing it in the chain of perceptual and cognitive processes that are involved. This is challenging, because these processes may interact unexpectedly, and because traditional (univariate) analyses of brain activity and behaviour may conflate processes with the representations they act on. By using multivariate pattern analysis of EEG data from a missing element task, designed to measure the visual temporal integration of two successive stimulus displays, we were able to track the representation associated with the integrated percept. We manipulated the delay between our displays, and observed commensurate acceleration of the resultant integrated representation. Furthermore, regardless of the delay, we found that although processing was already accelerated during the earliest processing stages at around 100ms after stimulus onset, intermediate stages, at around 200ms, were even more accelerated. In contrast, later processing stages, at around 400ms, again showed less acceleration. The results thus suggest that perceptual acceleration during temporal integration is nonlinear, and that some time that is gained at one moment in the process can be lost again at another. ### Competing Interest Statement The authors have declared no competing interest.
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Aytac Karabay @aytckrby.bsky.social · 27/02/2025
The paper is just published at Psychophysiology. If you are interested in visual impulse perturbation method to reveal memories, don't miss this paper. onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
<em>Psychophysiology</em> | SPR Journal | Wiley Online Library
This study contributes to the ongoing debate on working memory maintenance by testing how visual impulse perturbation reveals working memory content. Matching irrelevant spatial features bet...
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Elkan Akyurek @elkanakyurek.bsky.social · 17/02/2025
A while ago, I wrote a review on temporal integration as an adaptive process in perception, attention, and working memory. I’m very happy that it has now appeared (Open Access) in Neuroscience and Biobehavioral Reviews! 1/3 www.sciencedirect.com/science/arti...
sciencedirect.com
Temporal integration as an adaptive process in visual perception, attention, and working memory
I propose that temporal integration is ubiquitous in visual perception, because it serves an adaptive role. To support this idea, I draw together evid…
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Tim Behrens @behrenstimb.bsky.social · 30/01/2025
Hope you'll forgive a quick thread as I take over as the new EiC of @elife.bsky.social
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Lukas Kunz @lukaskunz.bsky.social · 19/01/2025
Happy to share our new preprint on cognitive maps and human spatial memory! Led by @lauranett.bsky.social, together with @timaguth.bsky.social and @philippbuchel.bsky.social Preprint: www.biorxiv.org/content/10.1... Task for easy re-use: github.com/BonnSpatialM... Code: github.com/BonnSpatialM...
biorxiv.org
Behavioral investigation of allocentric and egocentric cognitive maps in human spatial memory
Spatial memory is a fundamental cognitive function that enables humans and other species to encode and recall the locations of items in their environments. Humans employ diverse strategies to support ...
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Philipp Büchel @philippbuchel.bsky.social · 05/12/2024
Honored that Dr.Jennifer Ryan took the time to write a dispatch on our recent paper "Brain and eye movement dynamics track the transition from learning to memory-guided action". Its a truly excellent summary of the study: www.cell.com/current-biol...
cell.com
Memory: Using the past to anticipate the future
Memories can be decoded from brain responses and eye movements. A combined electroencephalogram–eyetracking study now shows that learning is marked by dynamic shifts in brain patterns and eye movements that go from remembering the past to anticipating the future.
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Philipp Büchel @philippbuchel.bsky.social · 27/11/2024
Proud of my first contribution to memory research: “Brain and eye movement dynamics track the transition from learning to memory-guided action” out in @currentbiology.bsky.social, great team effort together with Janina Klingspohr, Marcel Kehl & Bernhard Staresina. www.cell.com/current-biol...
cell.com
Brain and eye movement dynamics track the transition from learning to memory-guided action
This study reveals how the brain dynamically shifts from learning to memory-guided behavior. Büchel et al. use electroencephalography (EEG) and eye tracking in a spatiotemporal learning task to show a...
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