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Reza Shadmehr @rezashadmehr.bsky.social · 5d

Tenure-track faculty position in motor neuroscience at Penn State.

psu.wd1.myworkdayjobs.com/PSU_Academic...

Open-Rank Faculty Position in Sensorimotor Control and Rehabilitation Neuroscience

APPLICATION INSTRUCTIONS: CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process. Please do not apply here, a...

psu.wd1.myworkdayjobs.com

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Reza Shadmehr @rezashadmehr.bsky.social · 9d

I don't have much of a view from my office window, but this morning, the wind was brushing the vapor trails left by the rushing jets, leaving behind the froth of a cresting wave. If this was a superhero movie, there would be a surfer riding the waves in the sky.

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Reza Shadmehr @rezashadmehr.bsky.social · 15d

Since start of 2025, as compared to the same period in 2024, Johns Hopkins has received 40% fewer federal awards, a decline of ~50% in research funding, a reduction of $500 million.
University wide, international graduate student enrollment is down by 8% since last year.

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Reza Shadmehr @rezashadmehr.bsky.social · 16d

The cerebellum receives a surprisingly rich amount of information regarding stimulus value via its climbing fibers. What role does this pathway play in learning to make better decisions? Haining Zhong will explain.

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Reza Shadmehr @rezashadmehr.bsky.social · 19d

Haining Zhong imaged climbing fibers during auditory discrimination, finding that they encode cue identities and perceptual choices. The responses were reshaped by reversal learning. The predictive nature of these signals suggests a role for climbing fibers in decision-making.

Zoom link: email me.

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Reza Shadmehr @rezashadmehr.bsky.social · Sep 4

The talks are open to all (please contact me).
The recorded talks are available here:
www.youtube.com/@shadmehrlab...

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Reza Shadmehr @rezashadmehr.bsky.social · Sep 4

To understand cortico-cerebellar connectivity in humans, the usual approach is to exploit the correlations of functional brain imaging signals during rest.
In this talk, Jorn Diedrichsen will present results suggesting that a better approach is to measure co-activation during specific tasks.

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Reza Shadmehr @rezashadmehr.bsky.social · Jul 30

At the Society for Neuroscience Conference this year, a scientific meeting to bring closer the neuroscientists who have cultural ties to the middle east. Please join us.

www.middleeastneuro.com

Middle Eastern Systems Neuroscience Symposium

Join the Middle Eastern Systems Neuroscience Symposium on November 14, 2025, at UCSD Faculty Club, San Diego, in conjunction with the Society for Neuroscience (SfN) meeting. This event fosters scienti...

www.middleeastneuro.com

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Reza Shadmehr @rezashadmehr.bsky.social · Jul 4

Learning from error is central to the cerebellum. When an error occurs, the P-cells are informed via their climbing fiber input, which slightly suppresses the simple spikes on the next attempt. The resulting change in behavior is defined by the P-cell's potent vector.
www.nature.com/articles/s41...

Encoding of error and learning to correct that error by the Purkinje cells of the cerebellum - Nature Neuroscience

Herzfeld et al. examine how the cerebellum learns to correct movements. They find a timing code that links a Purkinje cell’s preference for error to its downstream projection on motor effectors that p...

www.nature.com

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Reza Shadmehr @rezashadmehr.bsky.social · Jun 18

In my drive this morning I thought how lucky I am to have a road and a working car in a city that is not being bombed.
During lunch with my students I looked at their beautiful young faces and wished for them a better world.

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Reza Shadmehr @rezashadmehr.bsky.social · Jun 13

The talks are open to all. The recordings are available: www.youtube.com/@shadmehrlab...

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Reza Shadmehr @rezashadmehr.bsky.social · Jun 13

Shlomi Haar will present longitudinal studies of Parkinson's disease, focusing on anatomical and connectivity changes in the brain. Before diagnosis, there is a surprising increase in cerebellar white matter volume, followed by degeneration post-diagnosis.

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Reposted by Reza Shadmehr

The Transmitter @thetransmitter.bsky.social · Jun 13

For black-capped chickadees, looking out at a location activates the same place cells as actually being there, a study from Columbia University shows.

By @martajhill.bsky.social

#neuroskyence

www.thetransmitter.org/hippocampus/...

Gazing from afar activates place cells in chickadees

The results help explain how the hippocampus can recall information about a place without an animal physically revisiting it.

www.thetransmitter.org

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Reza Shadmehr @rezashadmehr.bsky.social · Jun 11

Spontaneous recovery of memories has been one of the most interesting phenomenon I've ever seen. When we learn A, then -A, the -A experience installs a memory that competes and overshadows A, but with passage of time, A recovers and come to fore. What's the neural basis of this? I'd love to know.

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Reza Shadmehr @rezashadmehr.bsky.social · Jun 7

The recorded talks are available: www.youtube.com/@shadmehrlab...

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Reza Shadmehr @rezashadmehr.bsky.social · Jun 7

Rui Costa introduces a computational framework in which cerebellar networks learn to guide cerebral cortex dynamics with task-outcome predictions.

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Reza Shadmehr @rezashadmehr.bsky.social · Jun 2

The recorded talks are available: www.youtube.com/@shadmehrlab...

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Reza Shadmehr @rezashadmehr.bsky.social · Jun 2

The cerebellum builds internal models of self motion, making it possible for us to read both the signs on the road, and our phones, while we walk. Jean Laurens will describe this computation.

Seminars are open to all.

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Reza Shadmehr @rezashadmehr.bsky.social · May 23

I'm happy to send it to you. Simply contact me via email.

Reza Shadmehr @rezashadmehr.bsky.social · May 22

Math and biology meet in the cerebellum. Perspective by Mark Churchland and Nate Sawtell.
www.science.org/doi/10.1126/...

Math and biology meet in the cerebellum

There can be surprising differences between what neurons do and what neurons cause

www.science.org

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Reza Shadmehr @rezashadmehr.bsky.social · May 22

Neuronal computation in the cerebellum via a vector calculus.

Work of Mohammad Amin Fakharian, Alden Shoup, Paul Hage, and Hisham Elseweifi

www.science.org/doi/10.1126/...

A vector calculus for neural computation in the cerebellum

Null space theory predicts that neurons generate spikes not only to produce behavior but also to prevent the undesirable effect of other neurons on behavior. In this work, we show that this competitiv...

www.science.org

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Reza Shadmehr @rezashadmehr.bsky.social · May 22

The recorded talks are available here: www.youtube.com/@shadmehrlab...

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Reza Shadmehr @rezashadmehr.bsky.social · May 22

In people who suffer from essential tremor, excessive cerebellar oscillations give rise to involuntary, rhythmic movements. Ming-Kai Pan will present evidence from both mice and humans demonstrating that the cerebellum contributes to real-time motor control by encoding motor frequencies.

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Reza Shadmehr @rezashadmehr.bsky.social · May 17

The recorded talks are available here: www.youtube.com/@shadmehrlab...

Shadmehr Lab

Seminars and tutorials on the neural control of behavior by the cerebellum.

www.youtube.com

Reza Shadmehr @rezashadmehr.bsky.social · May 17

To unlearn is hard, but necessary for recovery, because without it, some memories can bring us depression and anxiety. This process is called extinction learning.

Enzo Nio and Dagmar Timmann explain the role of the cerebellum in learning to forget.

Seminars are open to all (contact me).

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