Jörn Diedrichsen
@diedrichsenjorn.bsky.social
Brains, Data and Science
Prof in Computational Neuroscience at Western University
Cerebellum and Motor Control
Prof in Computational Neuroscience at Western University
Cerebellum and Motor Control
Language areas in the cerebellar mapped by @coltoncasto.bsky.social: www.thetransmitter.org/language/cer...
Very consistent with @carobellum.bsky.social functional atlas, but providing deeper details. By now the "terra incognita" of the cerebellum isn't so "incognita" anymore!
Very consistent with @carobellum.bsky.social functional atlas, but providing deeper details. By now the "terra incognita" of the cerebellum isn't so "incognita" anymore!
Cerebellum responds to language like cortical areas
One of four language-responsive cerebellar regions may encode meaningful information, much like the cortical language network in the left hemisphere, according to a new study.
www.thetransmitter.org
February 9, 2026 at 11:07 PM
Language areas in the cerebellar mapped by @coltoncasto.bsky.social: www.thetransmitter.org/language/cer...
Very consistent with @carobellum.bsky.social functional atlas, but providing deeper details. By now the "terra incognita" of the cerebellum isn't so "incognita" anymore!
Very consistent with @carobellum.bsky.social functional atlas, but providing deeper details. By now the "terra incognita" of the cerebellum isn't so "incognita" anymore!
Reposted by Jörn Diedrichsen
Sir Ian McKellen performing a monologue from Shakespeare’s Sir Thomas More on the Stephen Colbert show. Never have I heard this monologue performed with such a keen sense of prescience. Nor have I ever been in this exact historical moment.TY Sir Ian, for reaching us once again.
#Pinks #ProudBlue
#Pinks #ProudBlue
February 5, 2026 at 11:50 AM
Sir Ian McKellen performing a monologue from Shakespeare’s Sir Thomas More on the Stephen Colbert show. Never have I heard this monologue performed with such a keen sense of prescience. Nor have I ever been in this exact historical moment.TY Sir Ian, for reaching us once again.
#Pinks #ProudBlue
#Pinks #ProudBlue
Incredibly hard and heroic work by @rhodricusack.bsky.social, @clionaod.bsky.social and many other just out in Nature Neuroscience: Visual categorization in the ventral stream can is present in 2-month old already.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Infants have rich visual categories in ventrotemporal cortex at 2 months of age - Nature Neuroscience
Using infant fMRI, the authors show that, by 2 months of age, representations in high-level visual cortex encode visual categories that align with deep neural networks, and lateral object-selective re...
www.nature.com
February 5, 2026 at 10:23 PM
Incredibly hard and heroic work by @rhodricusack.bsky.social, @clionaod.bsky.social and many other just out in Nature Neuroscience: Visual categorization in the ventral stream can is present in 2-month old already.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Wow - i deeply admire you for this decision and the sacrifices you are making! You just made my day.
February 4, 2026 at 7:41 PM
Wow - i deeply admire you for this decision and the sacrifices you are making! You just made my day.
The first Canadian paper from @sivanjo.bsky.social: when we started this work, I thought the cerebellar articulation areas would just look like the speech area in M1. Not so. Check it out! @coltoncasto.bsky.social
New preprint is live! 🎉
We (@diedrichsenjorn.bsky.social , @basselarafat.bsky.social, and I) studied how the brain represents syllables during speech, and which cortical representations the cerebellum most closely resemble.
Feedback very welcome:
www.biorxiv.org/content/10.6...
We (@diedrichsenjorn.bsky.social , @basselarafat.bsky.social, and I) studied how the brain represents syllables during speech, and which cortical representations the cerebellum most closely resemble.
Feedback very welcome:
www.biorxiv.org/content/10.6...
www.biorxiv.org
February 1, 2026 at 6:45 PM
The first Canadian paper from @sivanjo.bsky.social: when we started this work, I thought the cerebellar articulation areas would just look like the speech area in M1. Not so. Check it out! @coltoncasto.bsky.social
Great collboration from @mnlmrc.bsky.social: Multivoxel fMRI and neuropixel recordings show sensorimotor prediction errors in M1 / S1 in the input, but not in the spiking of output neurons!
www.biorxiv.org/content/10.6...
With @andpru.bsky.social @jonathanamichaels.bsky.social @gribblelab.org
www.biorxiv.org/content/10.6...
With @andpru.bsky.social @jonathanamichaels.bsky.social @gribblelab.org
www.biorxiv.org
January 31, 2026 at 2:48 PM
Great collboration from @mnlmrc.bsky.social: Multivoxel fMRI and neuropixel recordings show sensorimotor prediction errors in M1 / S1 in the input, but not in the spiking of output neurons!
www.biorxiv.org/content/10.6...
With @andpru.bsky.social @jonathanamichaels.bsky.social @gribblelab.org
www.biorxiv.org/content/10.6...
With @andpru.bsky.social @jonathanamichaels.bsky.social @gribblelab.org
Reposted by Jörn Diedrichsen
🥳 Happy holidays everyone, the list will be back in January 🎉
This week's sensorimotor superlab reading list is out https://superlab.ca/posts/2025-12-19-list316.html @andpru.bsky.social @diedrichsenjorn.bsky.social @gribblelab.org #neuroskyence #psychscisky #Sensorimotor
December 19, 2025 at 1:05 PM
🥳 Happy holidays everyone, the list will be back in January 🎉
Reposted by Jörn Diedrichsen
If you are an MRI researcher interested in moving to 🇨🇦 for $500k a year or $1M a year for 8 years with a possibility of renewal at a reduced rate, take a look at our equipment cfmm.uwo.ca and this program www.canada.ca/en/impact-pl... . MSK, neuroscience, cardiac, cancer applications all encouraged!
Canada Impact+ Research Chairs - Canada.ca
www.canada.ca
December 9, 2025 at 8:56 PM
If you are an MRI researcher interested in moving to 🇨🇦 for $500k a year or $1M a year for 8 years with a possibility of renewal at a reduced rate, take a look at our equipment cfmm.uwo.ca and this program www.canada.ca/en/impact-pl... . MSK, neuroscience, cardiac, cancer applications all encouraged!
Reposted by Jörn Diedrichsen
This is an amazing success story. We are happy to have published several papers there - it really has become the top neuroimaging journal within just two years. Kudos to all who had the courage to make it happen!
Launched in 2023, Imaging Neuroscience is now firmly established, with full indexing (PubMed, etc.) and 700 papers to date.
We're very happy to announce that we are able to reduce the APC to $1400.
Huge thanks to all authors, reviewers, editorial team+board, and MIT Press.
We're very happy to announce that we are able to reduce the APC to $1400.
Huge thanks to all authors, reviewers, editorial team+board, and MIT Press.
September 5, 2025 at 3:14 AM
This is an amazing success story. We are happy to have published several papers there - it really has become the top neuroimaging journal within just two years. Kudos to all who had the courage to make it happen!
Reposted by Jörn Diedrichsen
This week's sensorimotor superlab reading list is out https://superlab.ca/posts/2025-11-28-list313.html @andpru.bsky.social @diedrichsenjorn.bsky.social @gribblelab.org #neuroskyence #psychscisky #Sensorimotor
November 28, 2025 at 11:19 AM
This week's sensorimotor superlab reading list is out https://superlab.ca/posts/2025-11-28-list313.html @andpru.bsky.social @diedrichsenjorn.bsky.social @gribblelab.org #neuroskyence #psychscisky #Sensorimotor
The Sensorimotor Superlab with @gribblelab.org and @andpru.bsky.social is a unique place to work and learn. We are now accepting MSc and PhD applications for Fall 2026. Join our awesome team at Western University... For application instructions see diedrichsenlab.org and gribblelab.org/join.html!
Diedrichsenlab
diedrichsenlab.org
November 24, 2025 at 10:50 PM
The Sensorimotor Superlab with @gribblelab.org and @andpru.bsky.social is a unique place to work and learn. We are now accepting MSc and PhD applications for Fall 2026. Join our awesome team at Western University... For application instructions see diedrichsenlab.org and gribblelab.org/join.html!
Hi Adrien, it may be a while until we have something online…. But i would be happy to have a zoom call and walk you through what we are thinking right now.
November 24, 2025 at 2:49 PM
Hi Adrien, it may be a while until we have something online…. But i would be happy to have a zoom call and walk you through what we are thinking right now.
Reposted by Jörn Diedrichsen
A new paper from the lab featuring an elegant set of experiments to explore whether and how reaction times relate to sequence planning -- stellar work by @arminpanjehpour.bsky.social. www.biorxiv.org/content/10.1...
www.biorxiv.org
November 13, 2025 at 6:08 PM
A new paper from the lab featuring an elegant set of experiments to explore whether and how reaction times relate to sequence planning -- stellar work by @arminpanjehpour.bsky.social. www.biorxiv.org/content/10.1...
So, please don't cite the original paper (
www.sciencedirect.com/science/arti...) without having read ours!
www.sciencedirect.com/science/arti...) without having read ours!
A Rapid Form of Offline Consolidation in Skill Learning
The brain strengthens memories through consolidation, defined as resistance to interference (stabilization) or performance improvements between the en…
www.sciencedirect.com
October 29, 2025 at 5:13 PM
So, please don't cite the original paper (
www.sciencedirect.com/science/arti...) without having read ours!
www.sciencedirect.com/science/arti...) without having read ours!
The main lesson: It is about 3x harder to publish a careful refutation of an influential idea, than it was to publish that idea in the first place. The paper as 5 experiments and nearly 700 subjects - plus an number of additional control experiments.
October 29, 2025 at 5:10 PM
The main lesson: It is about 3x harder to publish a careful refutation of an influential idea, than it was to publish that idea in the first place. The paper as 5 experiments and nearly 700 subjects - plus an number of additional control experiments.
Also out today in PNAS: Anwesha Das shows in this thorough paper that "micro-offline gains" in sequence learning do not reflect consolidation of a motor memory - they also happen in random sequences. With @eazanon.bsky.social and Max-Philip Stenner (Magdeburg).
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
October 29, 2025 at 5:06 PM
Also out today in PNAS: Anwesha Das shows in this thorough paper that "micro-offline gains" in sequence learning do not reflect consolidation of a motor memory - they also happen in random sequences. With @eazanon.bsky.social and Max-Philip Stenner (Magdeburg).
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
I'm really proud of being part of this paper - an amazing success for us in the Western Sensorimotor Superlab with @andpru.bsky.social @gribblelab.org! Congrats Jon!
Thrilled that our paper is out today in Nature!
www.nature.com/articles/s4...
www.nature.com/articles/s4...
Sensory expectations shape neural population dynamics in motor circuits
Nature - Experiments with human volunteers and macaques show that expectations produced by probabilistic cueing of future sensory inputs shape motor circuit dynamics in order to increase the...
www.nature.com
October 29, 2025 at 4:58 PM
I'm really proud of being part of this paper - an amazing success for us in the Western Sensorimotor Superlab with @andpru.bsky.social @gribblelab.org! Congrats Jon!
Reposted by Jörn Diedrichsen
C.S. Lewis responding to a letter from an American schoolgirl asking him for some writing advice.
(Worth reading? ✅️)
(Worth reading? ✅️)
October 24, 2025 at 8:19 PM
C.S. Lewis responding to a letter from an American schoolgirl asking him for some writing advice.
(Worth reading? ✅️)
(Worth reading? ✅️)
Reposted by Jörn Diedrichsen
Come work with us! we are hiring a scientific software developer!
www.radboudumc.nl/en/vacancies...
www.radboudumc.nl/en/vacancies...
Vacancy - Research Software Engineer for Real-World Data
Join the forefront of healthcare innovation at Radboudumc as a research software engineer! We are seeking a passionate and driven individual to ...
eur01.safelinks.protection.outlook.com
October 16, 2025 at 2:50 PM
Come work with us! we are hiring a scientific software developer!
www.radboudumc.nl/en/vacancies...
www.radboudumc.nl/en/vacancies...
Reposted by Jörn Diedrichsen
We will have an NHP position open at @westernu.ca this year. Posting is coming soon. If you're interested about our setup and the opportunities here, feel free to get in touch.
September 30, 2025 at 10:44 PM
We will have an NHP position open at @westernu.ca this year. Posting is coming soon. If you're interested about our setup and the opportunities here, feel free to get in touch.
The main lesson is that "unique variance" is highly dependent on which other regressors we consider. That's a problem, as we never can be quite sure what the correct model is. Bayesian model averaging can at least integrate out some of that uncertainty. We hope to have the manuscript out soon!
September 16, 2025 at 1:39 PM
The main lesson is that "unique variance" is highly dependent on which other regressors we consider. That's a problem, as we never can be quite sure what the correct model is. Bayesian model averaging can at least integrate out some of that uncertainty. We hope to have the manuscript out soon!
I guess you could think about the "shared variance" as a lower bound for the overlap between regressors. However, for this to be a real bound, you would need a strong theoretical basis to distinguish overlap and suppression. There is none (I know of) - it just boils down to geometry (Fig. 3).
September 16, 2025 at 1:35 PM
I guess you could think about the "shared variance" as a lower bound for the overlap between regressors. However, for this to be a real bound, you would need a strong theoretical basis to distinguish overlap and suppression. There is none (I know of) - it just boils down to geometry (Fig. 3).
Variance partitioning is used to quantify the overlap of two models. Over the years, I have found that this can be a very confusing and misleading concept. So we finally we decided to write a short blog to explain why.
@martinhebart.bsky.social @gallantlab.org
diedrichsenlab.org/BrainDataSci...
@martinhebart.bsky.social @gallantlab.org
diedrichsenlab.org/BrainDataSci...
September 10, 2025 at 4:58 PM
Variance partitioning is used to quantify the overlap of two models. Over the years, I have found that this can be a very confusing and misleading concept. So we finally we decided to write a short blog to explain why.
@martinhebart.bsky.social @gallantlab.org
diedrichsenlab.org/BrainDataSci...
@martinhebart.bsky.social @gallantlab.org
diedrichsenlab.org/BrainDataSci...
Exited to share tomorrow new updates on trying to figure out how the neocortex and cerebellum talk to each other. Work by @carobellum.bsky.social, Ali Shabazi, and others in the lab!
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.
In this talk, Jorn Diedrichsen will present results suggesting that a better approach is to measure co-activation during specific tasks.
September 8, 2025 at 1:21 PM
Exited to share tomorrow new updates on trying to figure out how the neocortex and cerebellum talk to each other. Work by @carobellum.bsky.social, Ali Shabazi, and others in the lab!
Amazing new paper - such a pleasure to be involved! With so much and clean neuropixel data - analysis becomes a completely different game…
Excited to share my latest work with @jonathanamichaels.bsky.social @diedrichsenjorn.bsky.social & @andpru.bsky.social!
We asked: How does the motor cortex account for arm posture when generating movement?
Paper 👉 www.biorxiv.org/content/10.1...
1/10
We asked: How does the motor cortex account for arm posture when generating movement?
Paper 👉 www.biorxiv.org/content/10.1...
1/10
Compositional neural dynamics during reaching
The complex mechanics of the arm make the neural control of reaching inherently posture dependent. Because previous reaching studies confound reach direction with final posture, it remains unknown how...
www.biorxiv.org
September 6, 2025 at 11:56 PM
Amazing new paper - such a pleasure to be involved! With so much and clean neuropixel data - analysis becomes a completely different game…