Guy Avraham's Avatar

Guy Avraham

@guyavraham.bsky.social

Cognitive Neuroscience

64 Followers  |  117 Following  |  3 Posts  |  Joined: 18.03.2025  |  1.5952

Latest posts by guyavraham.bsky.social on Bluesky

Preview
Cerebellar Contributions to Action and Cognition: Prediction, Timescale, and Continuity The cerebellum is implicated in nearly every domain of human cognition, yet our understanding of how this subcortical structure contributes to cognition remains elusive. Efforts on this front have ten...

The cerebellum isn’t just about coordinating movement. It’s implicated in nearly every domain of cognitionβ€”from language to social behavior.

But how exactly does the cerebellum contribute to action and cognition? 🧡

Check out our new paper w/ Rich Ivry.
arxiv.org/abs/2509.09818

15.09.2025 12:19 β€” πŸ‘ 67    πŸ” 20    πŸ’¬ 6    πŸ“Œ 3
Post image

Thrilled that our new review "Motor Working Memory" is now in press at TiCS!

@cp-trendscognsci.bsky.social
@cellpress.bsky.social

By me +
Hanna Hillman

We argue that a dedicated research program on 'working memory for movements' is long overdue

Link: authors.elsevier.com/a/1lmMX4sIRv...

15.09.2025 12:56 β€” πŸ‘ 88    πŸ” 34    πŸ’¬ 6    πŸ“Œ 2
Preview
Reward function compression facilitates goal-dependent reinforcement learning Reinforcement learning agents learn from rewards, but humans can uniquely assign value to novel, abstract outcomes in a goal-dependent manner. However, this flexibility is cognitively costly, making l...

πŸ“’ New preprint!
How do humans learn from arbitrary, abstract goals? We show that, when goal spaces can be compressed, costly working-memory processes give way to internalized reward functions, enabling efficient goal-dependent reinforcement learning. @annecollins.bsky.social arxiv.org/abs/2509.06810

09.09.2025 01:58 β€” πŸ‘ 59    πŸ” 24    πŸ’¬ 2    πŸ“Œ 1
Preview
REM Sleep Misfires: Intruding Delta Waves Forecast Tau, Amyloid, and Forgetting in Aging Rapid Eye Movement (REM) sleep degrades with age, and more severely in Alzheimer's disease (AD). REM sleep comprises about twenty percent of adult sleep, alternates between phasic and tonic periods, a...

Fresh results now in bioRxiv! πŸŽ‰ We know about the function of NREM sleep for overnight memory consolidation. But what about REM sleep? We found that in aging, slow delta waves can intrude phasic REM periods, and this, is associated with worse overnight consolidation 🧠 (1/5) doi.org/10.1101/2025...

23.08.2025 14:31 β€” πŸ‘ 25    πŸ” 13    πŸ’¬ 1    πŸ“Œ 1
Preview
PhD and Postdoc Positions (m/f/d) in Human Cognitive Neuroscience of Dynamic Cognition – M/EEG, brain stimulation Job Offer from August 11, 2025

We’re hiring! πŸ₯³fully funded PhD and postdoc positions in human cognitive neuroscience @mpicybernetics.bsky.social

M/EEG and brain stimulation methods to study timing/ prediction/ attention/ oscillations
tinyurl.com/5dku4du9

@timingresforum.bsky.social @gtc-tuebingen.bsky.social

please repost πŸ™

20.08.2025 09:10 β€” πŸ‘ 59    πŸ” 48    πŸ’¬ 2    πŸ“Œ 1

Here is the link (last one broke): www.jneurosci.org/content/45/3...

31.07.2025 16:36 β€” πŸ‘ 10    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
Post image

What happens to motor adaptationβ€”the way we correct errors with feedbackβ€”when feedback is indirect, like a number on a screen?

In our new paper in @royalsociety.org‬, we found that indirect feedback hinders learning compared to sensory feedback.

tinyurl.com/5d32c99e

30.07.2025 11:33 β€” πŸ‘ 24    πŸ” 5    πŸ’¬ 1    πŸ“Œ 0
Post image

New preprint with Sritej, rezashadmehr.bsky.social, and Roberta Klatzky now on biorxivpreprint.bsky.social!

Motor adaptationβ€”our ability to correct errors using feedbackβ€”is attenuated in a Bayes-optimal manner when goals are uncertain.

Welcome any and all feedback!

tinyurl.com/y9kjcfzj

24.07.2025 10:40 β€” πŸ‘ 19    πŸ” 6    πŸ’¬ 1    πŸ“Œ 1

New paper! πŸ“ now out in @cognitionjournal.bsky.social !

12.07.2025 00:28 β€” πŸ‘ 20    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0

#eNeuro | Interference Underlies Attenuation upon Relearning in Sensorimotor Adaptation
vist.ly/3n8vchg

08.07.2025 23:29 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

In Exp 5 we show that prolonged experience with baseline feedback produces attenuated adaptation. This is strikingly similar to latent inhibition, and consistent with our other evidence suggesting that motor adaptation is a form of associative learning.

elifesciences.org/articles/75801

30.06.2025 08:12 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Many thanks to the editor and reviewers for the wonderful feedback, and especially for recognizing that β€œthe results of experiment 5 and the link to classical conditioning are what is most exciting in this paper”. We agree...

30.06.2025 08:12 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Interference Underlies Attenuation upon Relearning in Sensorimotor Adaptation Savings refers to the gain in performance upon relearning. In sensorimotor adaptation, savings is tested by having participants adapt to perturbed feedback and, following a washout block during which ...

Happy to share that our study β€œInterference underlies attenuation upon relearning in sensorimotor adaptation” is now out in @SfNJournals #eNeuro!

www.eneuro.org/content/12/6...

30.06.2025 08:12 β€” πŸ‘ 8    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
Preview
Mental graphs structure the storage and retrieval of visuomotor associations - Nature Human Behaviour Trach and McDougle show that motor responses can form part of structured, graph-like memory representations.

Thrilled to share the new paper from the lab out today in
@nathumbehav.nature.com, led by the great @jetrach.bsky.social!

"Mental graphs structure the storage and retrieval of visuomotor associations"

www.nature.com/articles/s41...

02.06.2025 15:42 β€” πŸ‘ 84    πŸ” 34    πŸ’¬ 2    πŸ“Œ 1

@guyavraham is following 20 prominent accounts