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Roselyne Chauvin @roselynechauvin.bsky.social · 1d

Important consideration to better model neuroimaging data

nasiametoki.bsky.social @nasiametoki.bsky.social · 1d

Is resting-state functional connectivity (rsFC), cortical thickness (CT), or cortical volume more effective at capturing sex and gender differences in the brains of preadolescents?

Check out our new article (doi.org/10.1016/j.dc...) now out in Developmental Cognitive Neuroscience.

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Roselyne Chauvin @roselynechauvin.bsky.social · 8d

That's going to be very useful !!

Benjamin Kay @benjaminkay.bsky.social · 8d

Ever wondered if your interesting brain-behavior correlation was over- or under-estimated due to head motion, but were afraid to ask? We’ve created a motion impact score for detecting spurious brain-behavior associations, now available in Nature Communications!
doi.org/10.1038/s414...

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Roselyne Chauvin @roselynechauvin.bsky.social · 29d

Want to know the behind the scenes of the "Disuse-driven plasticity in the human thalamus and
putamen" paper? discover @ndosenbach.bsky.social and I interview by @cp-cellreports.bsky.social

www.cell.com/cell-reports...

Q&A with Nico U.F. Dosenbach and Roselyne Chauvin

Nico U.F. Dosenbach and Roselyne Chauvin spoke with Cell Reports about their recent paper, in which they observed subcortical plasticity in humans following a 2-week arm/hand-casting paradigm with dai...

www.cell.com

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Reposted by Roselyne Chauvin

cogniclasse-afsc.bsky.social @cogniclasse-afsc.bsky.social · Sep 4

🔔 J-30 avant le #CogniForum25 !
Du 6 au 16/10-25, rejoignez une cté unique autour des sciences cognitives de l’apprentissage
Avec un parrain exceptionnel : Steve Masson de @uqam.ca
📜& inscriptions⬇️
view.genially.com/6890d92d9e9d...
🙏 Merci aux chercheur·ses et intervenant·es pour leur engagement..

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Reposted by Roselyne Chauvin

Damien Fair @drdamienfair.bsky.social · Aug 10

I still get chills

Meet Mike
*30+ years severe depression
*first hospitalized @ 13y
*20 meds
*3 rounds of ECT
*2 near-fatal suicide attempts

Mike felt joy for the first time in decades after we turned on his new brain pacemaker or PACE

see videos, read paper, follow thread
doi.org/10.31234/osf...

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Reposted by Roselyne Chauvin

Nico Dosenbach @ndosenbach.bsky.social · Jul 17

This new Yeo Lab tool should immediately and permanently replace sample-size-only power calculations for functional MRI.

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

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Roselyne Chauvin @roselynechauvin.bsky.social · Jul 10

If you missed it, the replay is available

LOOPs_spp2411 @brainloops.bsky.social · Jul 9

🚨‼️ TODAY: LOOPs Webinar Reminder ‼️🚨

Don’t miss TODAY’s webinar by @roselynechauvin.bsky.social on how high-res neuroimaging reveals reversible changes in motor circuits during arm immobilization 🧠💪

🗓️ July 9th, 2025 (Today!!)
🕓 4 PM CEST
📍 Watch here 👉 www.crowdcast.io/c/loops-semi...

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Reposted by Roselyne Chauvin

Evan Gordon @gordonneuro.bsky.social · Jul 10

We have argued that the brain’s Action Mode Network controls functions required for goal-directed behavior. www.nature.com/articles/s41...

Now, in new work, we show that AMN contains distinct subnetworks for making decisions, implementing actions, and processing feedback. doi.org/10.1073/pnas...

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Roselyne Chauvin @roselynechauvin.bsky.social · Jul 1

Looking forward to talk about my latest research findings at the LOOPS webinar

LOOPs_spp2411 @brainloops.bsky.social · Jul 1

🔄‼️ LOOPs Webinar Alert

Upcoming: Mapping Motor Plasticity

Join @roselynechauvin.bsky.social as she shows how high-res neuroimaging reveals reversible changes in the cortico-subcortical motor circuit during arm immobilization 🧠💪

📅 July 9th, 2025
🕓 4pm CEST
🔗 crowdcast.io/c/loops-semi...

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Reposted by Roselyne Chauvin

Damien Fair @drdamienfair.bsky.social · Jun 26

Alert!!!!

“An Action Networks Model for Pain”

We propose a new model for chronic pain — and highlight two functionally connected cortical networks that could revolutionize how we treat it.

👉 thread below 🧵

osf.io/preprints/ps...

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Reposted by Roselyne Chauvin

LOOPs_spp2411 @brainloops.bsky.social · Jun 12

🧠🔄 #NeuroThursday

@roselynechauvin.bsky.social & team use daily fMRI to show that 2 weeks of arm disuse triggers spontaneous “disuse pulses” and boosts connectivity in motor cortex, thalamus and putamen.

Arm in a cast? Your thalamus rewires 🩼🧠 Check out below ⬇️

🔗 www.cell.com/cell-reports...

Disuse-driven plasticity in the human thalamus and putamen

Using a 2-week arm and hand casting paradigm with daily brain fMRIs, Chauvin et al. observe subcortical plasticity in humans. The disused motor circuit shows increased functional connectivity and the ...

www.cell.com

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Reposted by Roselyne Chauvin

Benjamin Kay @benjaminkay.bsky.social · May 22

My med school textbook says stimulants like Ritalin treat hyperactivity by “stimulating” the brain’s attention and cognitive control systems. We studied children taking stimulants in the ABCD Study, and the largest differences were actually in arousal and reward networks! Check out our preprint!

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Reposted by Roselyne Chauvin

Sam Krimmel @samkrimmelneuro.bsky.social · May 16

Had a great time speaking with Sydney about our most recent paper out now in @natcomms.nature.com @macwoodburn.bsky.social . Paper link here: rdcu.be/ehbOy

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Reposted by Roselyne Chauvin

Cedric Boeckx @cedricboeckx.bsky.social · May 16

Happy to read @sydneywyatt.bsky.social’s piece on the recent study by @samkrimmelneuro.bsky.social
@ndosenbach.bsky.social @gordonneuro.bsky.social re: the human red nucleus
I was glad to discuss this great work with Sydney
@thetransmitter.bsky.social
www.thetransmitter.org/brain-imagin...

‘Old’ brainstem structure evolved beyond basic motor control

The human red nucleus may also help coordinate action, reward and motivated behavior, a new study suggests.

www.thetransmitter.org

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Reposted by Roselyne Chauvin

The Science of Parkinson's @scienceofpd.bsky.social · Apr 14

New research from @roselynechauvin.bsky.social & colleagues studied motor plasticity in the human subcortex during 2 weeks of upper-extremity immobilization with daily resting-state & motor task fMRI; Limb disuse increases functional connectivity
www.cell.com/cell-reports...

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Reposted by Roselyne Chauvin

dillan-newbold.bsky.social @dillan-newbold.bsky.social · Apr 12

I'm so grateful that @roselynechauvin.bsky.social analyzed subcortical effects of limb-casting on resting-state brain activity! These effects mirror those seen in Parkinson's disease, perhaps because both conditions involve disuse and plasticity that suppresses future limb movements

Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

It turns out the brain🧠is silently🤫working when your arm is in a cast. 🩼 🚧
Plastic changes occur, and revert again when the cast is removed … not just in cortex.

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Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

We need to dive into understanding these similarities!!

Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

and of course @dillan-newbold.bsky.social

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Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

With @ndosenbach.bsky.social @gordonneuro.bsky.social @samkrimmelneuro.bsky.social @nasiametoki.bsky.social @ashley-n-nielsen.bsky.social @smarek0502.bsky.social @benjaminkay.bsky.social @jarodroland.bsky.social @forrestwhiting.bsky.social @washumedicine.bsky.social @washuneurology.bsky.social

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Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

Read all the details about it at our latest article “Disuse-driven plasticity in the human thalamus and putamen” www.sciencedirect.com/science/arti...

Disuse-driven plasticity in the human thalamus and putamen

Subcortical plasticity has mainly been studied using invasive electrophysiology in animals. Here, we leverage precision functional mapping (PFM) to st…

www.sciencedirect.com

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Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

Disuse pulses could be similar to thalamocortical spindles, #sleep events that are thought to help #memory and #skill consolidation. The occurrence of disuse #pulses in the central thalamus hints at a similar mechanisms … but during the day
(see physoc.onlinelibrary.wiley.com/doi/epdf/10.... )

two dogs are sleeping on a couch with pillows .

ALT: two dogs are sleeping on a couch with pillows .

media.tenor.com

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Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

Pulses and increased FC overlap with specific task motor execution thalamic nuclei: VIM, VPL (Ventro posterior lateral) and CM (centromedian)

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Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

Such disuse pulses were detectable for all participants in the thalamus. They propagate from cortex to thalamus and cerebellum, where pulses peak with a time delay.

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Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

This suggests a potential overlap between limb disuse during casting and Parkinson’s disease.

But that’s not all what we learned from this new investigation. We previously showed the emergence of motor cortex spontaneous pulses during casting (Newbold et al., Neuron 2020)

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Roselyne Chauvin @roselynechauvin.bsky.social · Apr 12

Interestingly, this increase in motor circuit FC can also be found in Parkinson’s Disease. An effect that contrasts with other neurodegenerative diseases in which FC decreases overall. (see pubmed.ncbi.nlm.nih.gov/29878081/)

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