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#basalganglia — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #basalganglia, aggregated by home.social.

  1. 🧠 New preprint by Greenstreet, Geerts, Gallego, and Clopath on #MotorLearning across #cortex, #cerebellum, and #BasalGanglia.

    Key idea: supervised learning builds a low-dimensional action embedding, and #ReinforcementLearning operates directly in this structured space. This explains generalization, interference, and striatal similarity patterns as geometric consequences, not add-ons.

    🌍 doi.org/10.64898/2025.12.19.69

    #Neuroscience #CompNeuro #RL

  2. 🧠 New preprint by Greenstreet, Geerts, Gallego, and Clopath on #MotorLearning across #cortex, #cerebellum, and #BasalGanglia.

    Key idea: supervised learning builds a low-dimensional action embedding, and #ReinforcementLearning operates directly in this structured space. This explains generalization, interference, and striatal similarity patterns as geometric consequences, not add-ons.

    🌍 doi.org/10.64898/2025.12.19.69

    #Neuroscience #CompNeuro #RL

  3. 🧠 New preprint by Greenstreet, Geerts, Gallego, and Clopath on #MotorLearning across #cortex, #cerebellum, and #BasalGanglia.

    Key idea: supervised learning builds a low-dimensional action embedding, and #ReinforcementLearning operates directly in this structured space. This explains generalization, interference, and striatal similarity patterns as geometric consequences, not add-ons.

    🌍 doi.org/10.64898/2025.12.19.69

    #Neuroscience #CompNeuro #RL

  4. 🧠 New preprint by Greenstreet, Geerts, Gallego, and Clopath on #MotorLearning across #cortex, #cerebellum, and #BasalGanglia.

    Key idea: supervised learning builds a low-dimensional action embedding, and #ReinforcementLearning operates directly in this structured space. This explains generalization, interference, and striatal similarity patterns as geometric consequences, not add-ons.

    🌍 doi.org/10.64898/2025.12.19.69

    #Neuroscience #CompNeuro #RL

  5. 🧠 New preprint by Greenstreet, Geerts, Gallego, and Clopath on #MotorLearning across #cortex, #cerebellum, and #BasalGanglia.

    Key idea: supervised learning builds a low-dimensional action embedding, and #ReinforcementLearning operates directly in this structured space. This explains generalization, interference, and striatal similarity patterns as geometric consequences, not add-ons.

    🌍 doi.org/10.64898/2025.12.19.69

    #Neuroscience #CompNeuro #RL

  6. Songbird connectomics, from my colleague Joergen Kornfeld:
    songbird-connectomics.org/

    Includes the first connectome of basal ganglia.

    Three key papers:

    "The songbird basal ganglia connectome", Rother et al. 2025 (Kornfeld lab)
    biorxiv.org/content/10.1101/20

    "An anatomical substrate of credit assignment in reinforcement learning", Kornfeld et al. 2025 (with Michael Fee as senior author)
    biorxiv.org/content/10.1101/20

    "Songbird connectome reveals tunnelling of migratory neurons in the adult striatum", Shvedov et al. 2025 (B.B. Scott's lab)
    biorxiv.org/content/10.1101/20

    #neuroscience #connectomics #ZebraFinch #songbirds #BasalGanglia

  7. the first songbird #basalganglia #brain connectome:
    -8,500 automated neuron reconstructions
    -20 million synapses
    -16 cell types
    songbird-connectomics.org/

  8. Something I always wondered about people with #tourettes and #ticdisorders:

    We're almost always empaths.

    The part of our brain - the #prefrontalcortex - responsible for #empathy is slightly larger than usual while the part of our brain in our #basalganglia regulating motor planning/control, has faulty neuro-pathways and shrunken parts.

    More connections to the PFC as an adaptation, resulting in glitchy motor controls but perhaps very deep emotions.

    #writing #mentalhealth #neuroscience

  9. Something I always wondered about people with #tourettes and #ticdisorders:

    We're almost always empaths.

    The part of our brain - the #prefrontalcortex - responsible for #empathy is slightly larger than usual while the part of our brain in our #basalganglia regulating motor planning/control, has faulty neuro-pathways and shrunken parts.

    More connections to the PFC as an adaptation, resulting in glitchy motor controls but perhaps very deep emotions.

    #writing #mentalhealth #neuroscience

  10. Something I always wondered about people with #tourettes and #ticdisorders:

    We're almost always empaths.

    The part of our brain - the #prefrontalcortex - responsible for #empathy is slightly larger than usual while the part of our brain in our #basalganglia regulating motor planning/control, has faulty neuro-pathways and shrunken parts.

    More connections to the PFC as an adaptation, resulting in glitchy motor controls but perhaps very deep emotions.

    #writing #mentalhealth #neuroscience

  11. Something I always wondered about people with #tourettes and #ticdisorders:

    We're almost always empaths.

    The part of our brain - the #prefrontalcortex - responsible for #empathy is slightly larger than usual while the part of our brain in our #basalganglia regulating motor planning/control, has faulty neuro-pathways and shrunken parts.

    More connections to the PFC as an adaptation, resulting in glitchy motor controls but perhaps very deep emotions.

    #writing #mentalhealth #neuroscience

  12. Something I always wondered about people with #tourettes and #ticdisorders:

    We're almost always empaths.

    The part of our brain - the #prefrontalcortex - responsible for #empathy is slightly larger than usual while the part of our brain in our #basalganglia regulating motor planning/control, has faulty neuro-pathways and shrunken parts.

    More connections to the PFC as an adaptation, resulting in glitchy motor controls but perhaps very deep emotions.

    #writing #mentalhealth #neuroscience

  13. #BasalGanglia are critical for decision-making, but how are their subregions coordinated? @nadjagingjehli &co show how the different subregions regulate #decision dynamics under varying degrees of conflict & uncertainty in a perceptual decision task #plosbiology plos.io/3WC13cq

  14. #NewPaper #Neuroscience

    Another cool #Anatomy paper on the connectivity between #BasalGanglia and the #Cerebellum

    Here some quotes:

    "Neural processing in the basal ganglia is critical for normal movement.
    ...
    Many believe that the basal ganglia influence movement via thalamic projections to motor areas of the cerebral cortex and through projections to the cerebellum, which also projects to the motor cortex via the thalamus.
    ...
    However, lesions that interrupt these thalamic pathways to the cortex have little effect on many movements, including limb movements.
    ...
    In this report, we describe several brainstem pathways that connect basal ganglia output to the cerebellum via nucleus reticularis tegmenti pontis (NRTP).
    ...
    The basal ganglia could ... alter movements via descending projections of the cerebellum.
    ...
    Pathways through NRTP ... may underlie deficits associated with basal ganglia disease."

    link.springer.com/article/10.1

    #Parkinson #MotorControl #MovementDisorders #Neurology