#motorcortex — Public Fediverse posts

🐭🎶 New paper by Isko et al, who study #Alston’s singing mouse, a rodent with loud, stereotyped songs.

Using bulk tracing, serial #2P #tomography, & #MAPseq of >76,000 barcoded neurons, they find expanded projections from #orofacial #MotorCortex to #auditory #cortex & #PAG. This suggests that singing / #Vocalization may emerge not from entirely new circuits, but from selective strengthening of existing motor, auditory & vocal-control pathways.

📝 https://doi.org/10.1038/s41586-026-10458-y

#Neuroscience #Evolution

🐭🎶 New paper by Isko et al, who study #Alston’s singing mouse, a rodent with loud, stereotyped songs.

Using bulk tracing, serial #2P #tomography, & #MAPseq of >76,000 barcoded neurons, they find expanded projections from #orofacial #MotorCortex to #auditory #cortex & #PAG. This suggests that singing / #Vocalization may emerge not from entirely new circuits, but from selective strengthening of existing motor, auditory & vocal-control pathways.

📝 https://doi.org/10.1038/s41586-026-10458-y

#Neuroscience #Evolution

Enhanced motor cortical connections underlie vocal behavior in singing mice

📰 Original title: Specific expansion of motor cortical projections in a singing mouse

🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅

View full AI summary: https://killbait.com/en/enhanced-motor-cortical-connections-underlie-vocal-behavior-in-singing-mice/?redirpost=c06e1ece-3c54-450b-916f-24dfd817bee6&utm_source=mastodon_world&utm_medium=social&utm_campaign=killbait

#neuroscience #motorcortex #voca...

Enhanced motor cortical connections underlie vocal behavior in singing mice

📰 Original title: Specific expansion of motor cortical projections in a singing mouse

🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅

View full AI summary: https://killbait.com/en/enhanced-motor-cortical-connections-underlie-vocal-behavior-in-singing-mice/?redirpost=c06e1ece-3c54-450b-916f-24dfd817bee6&utm_source=mastodon_social&utm_medium=social&utm_campaign=killbait

#neuroscience #motorcortex #voc...

How does somatosensory input to the #MotorCortex contribute to limb movement? This study shows that loss of #somatosensory inputs disrupts voluntary forelimb movements & motor cortex neuronal dynamics, highlighting the role of somatosensory input in motor control @PLOSBiology https://plos.io/3QcbXph

How does somatosensory input to the #MotorCortex contribute to limb movement? This study shows that loss of #somatosensory inputs disrupts voluntary forelimb movements & motor cortex neuronal dynamics, highlighting the role of somatosensory input in motor control @PLOSBiology https://plos.io/3QcbXph

Cool work on conserved #MotorCortex dynamics across species. #Behavior differs mainly through different trajectories on shared #NeuralManifolds. #NeuralDynamics #CompNeuro #Neuroscience 🧪

RE: https://bsky.app/profile/did:plc:tfffyrbltg3reliv5wq35on3/post/3mgpw73yhac2q

Cool work on conserved #MotorCortex dynamics across species. #Behavior differs mainly through different trajectories on shared #NeuralManifolds. #NeuralDynamics #CompNeuro #Neuroscience 🧪

RE: https://bsky.app/profile/did:plc:tfffyrbltg3reliv5wq35on3/post/3mgpw73yhac2q

🧠 New work by Codol et al. who show that #MotorCortex dynamics are remarkably conserved across #mice, #monkeys, and #humans. Despite very different #behaviors, #NeuralPopulation activity follows similar dynamical rules on low-dimensional #manifolds. Species differences arise mainly from the geometry of trajectories within this shared #DynamicalSystem.

📄 https://doi.org/10.64898/2026.03.06.709637

#Neuroscience #CompNeuro #NeuralDynamics

🧠 New work by Codol et al. who show that #MotorCortex dynamics are remarkably conserved across #mice, #monkeys, and #humans. Despite very different #behaviors, #NeuralPopulation activity follows similar dynamical rules on low-dimensional #manifolds. Species differences arise mainly from the geometry of trajectories within this shared #DynamicalSystem.

📄 https://doi.org/10.64898/2026.03.06.709637

#Neuroscience #CompNeuro #NeuralDynamics

There is a new episode on the #TheoreticalNeurosciencePodcast on low-dimensional #manifolds in #MotorCortex with Sara Solla ✌️, one of the pioneers of the manifold modelling approach in #Neuroscience.

🌍 http://theoreticalneuroscience.no/thn36

#CompNeuro #ComputationalNeuroscience

There is a new episode on the #TheoreticalNeurosciencePodcast on low-dimensional #manifolds in #MotorCortex with Sara Solla ✌️, one of the pioneers of the manifold modelling approach in #Neuroscience.

🌍 http://theoreticalneuroscience.no/thn36

#CompNeuro #ComputationalNeuroscience

There's a great talk by Juan Gallego on how low-dimensional #NeuralManifolds arise from biological constraints, remain invariant across states and inputs, and support cross-animal alignment. Examples span #HeadDirection rings, #gridcell tori, #MotorCortex prep vs movement, striatal timing dynamics, and C. elegans #behavior loops. Cool talk as it shows how #manifold-level structure can generalize across tasks and organisms.

🌍 https://www.youtube.com/watch?v=oxQyKByqDSU

#CompNeuro #Neuroscience #PopulationDynamics

🧠 New preprint by Codol et al. (2025): Brain-like #NeuralDynamics for #behavioral control develop through #ReinforcementLearning. They show that only #RL, not #SupervisedLearning, yields neural activity geometries & dynamics matching monkey #MotorCortex recordings. RL-trained #RNNs operate at the edge of #chaos, reproduce adaptive reorganization under #visuomotor rotation, and require realistic limb #biomechanics to achieve brain-like control.

🌍 https://doi.org/10.1101/2024.10.04.616712

#CompNeuro #Neuroscience

🧠 New preprint by Kashefi et al. (2025): High-density #Neuropixels recordings in monkeys reveal compositional #NeuralDynamics in #MotorCortex. A posture subspace anchors fixed points, rotational dynamics link them to generate movement, and a uniform shift tracks trial state. Recurrent models show this geometry emerges only when controlling a full arm, suggesting posture-dependent control as a core principle:

🌍 https://www.biorxiv.org/content/10.1101/2025.09.04.674069v1

#Neuroscience #MotorControl #CompNeuro

Movements can be initiated before or when one becomes aware of the intention. This study shows that spiking activity in human primary #MotorCortex coincides with onset of subjective intention, extending prior work on pre-motor & parietal #brain areas @PLOSBiology https://plos.io/4ivhobk

Movements can be initiated before or when one becomes aware of the intention. This study shows that spiking activity in human primary #MotorCortex coincides with onset of subjective intention, extending prior work on pre-motor & parietal #brain areas @PLOSBiology https://plos.io/4ivhobk

What are the neural correlates of the multiple processes occurring during #sensorimotor #learning? This study reveals 3 distinct connectivity patterns in #MotorCortex associated with implicit learning, explicit learning & performance-tracking #PLOSBiology https://plos.io/4inwSPz

What are the neural correlates of the multiple processes occurring during #sensorimotor #learning? This study reveals 3 distinct connectivity patterns in #MotorCortex associated with implicit learning, explicit learning & performance-tracking #PLOSBiology https://plos.io/4inwSPz

#PatrickHaggard - What is the #Problem with #FreeWill?

https://www.youtube.com/watch?v=b24jxQpLZsk

#Philosophy #PhilosophyOfFreeWill #Psychology #Neuroscience #Choice #Intention #Intentionality #Cortex #MotorCortex #Decision #Decisions #Mind #PhilosophyOfMind #StrongWill #WeakWill #CloserToTruth #RobertKuhn

#PatrickHaggard - What is the #Problem with #FreeWill?

https://www.youtube.com/watch?v=b24jxQpLZsk

#Philosophy #PhilosophyOfFreeWill #Psychology #Neuroscience #Choice #Intention #Intentionality #Cortex #MotorCortex #Decision #Decisions #Mind #PhilosophyOfMind #StrongWill #WeakWill #CloserToTruth #RobertKuhn

Preserved neural dynamics across animals performing similar behaviour | Nature: https://www.nature.com/articles/s41586-023-06714-0

#Neuroscience #NeuralDynamics #MotorCortex

Different flavors of beta oscillation. @NougaretSimon @BjKilavik &co show that high & low beta rhythms co-reside in the #MotorCortex of macaques and have distinct, band-specific roles in movement control & spatio-temporal attention #PLOSBiology https://plos.io/3xBcpnT

Different flavors of beta oscillation. @NougaretSimon @BjKilavik &co show that high & low beta rhythms co-reside in the #MotorCortex of macaques and have distinct, band-specific roles in movement control & spatio-temporal attention #PLOSBiology https://plos.io/3xBcpnT

Connectivity underlying #motorcortex activity during naturalistic goal-directed #behavior – #preprint by Finkelstein et al. (2023).

🌍 https://www.biorxiv.org/content/10.1101/2023.11.25.568673v1

#Neuroscience #NeuronNetworks #Learning

Mind-Body Connection Is Built Into Brain

Brain areas that control movement are plugged into networks that orchestrate thinking and planning, and control involuntary bodily functions. The findings provide a link between the body and the “mind” in the brain’s structure.

#Neuroscience #Brain #Neurology #BrainMap #MotorCortex #Homunculus
#SomatoCognitiveActionNetwork #SCAN
#Neuroimaging #fMRI

https://neurosciencenews.com/mind-body-brain-23049/

A somato-cognitive action network alternates with effector regions in motor cortex

#Neuroscience #Brain #Neurology #BrainMap #MotorCortex #Homunculus
#SomatoCognitiveActionNetwork #SCAN
#Neuroimaging #fMRI

https://www.nature.com/articles/s41586-023-05964-2

Famous ‘homunculus’ brain map redrawn to include complex movements

Textbook homunculus diagram depicts how the brain controls individual body parts — the revamp could improve treatments for brain injury.

#Neuroscience #Brain #Neurology #BrainMap #MotorCortex #Homunculus #Neuroimaging #fMRI

https://www.nature.com/articles/d41586-023-01312-6

#arxivfeed :

"Monkey-to-human transfer of brain computer interface decoders"
https://www.biorxiv.org/content/10.1101/2022.11.12.515040v1

#neuroscience #neuro #brain #BCI #iBCI #EMG #WienerCascade #decoder #motorCortex