🧠 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.
Songbird connectomics, from my colleague Joergen Kornfeld:
https://www.songbird-connectomics.org/
Includes the first connectome of basal ganglia.
Three key papers:
"The songbird basal ganglia connectome", Rother et al. 2025 (Kornfeld lab)
https://www.biorxiv.org/content/10.1101/2025.10.25.684569v1
"An anatomical substrate of credit assignment in reinforcement learning", Kornfeld et al. 2025 (with Michael Fee as senior author)
https://www.biorxiv.org/content/10.1101/2020.02.18.954354v2
"Songbird connectome reveals tunnelling of migratory neurons in the adult striatum", Shvedov et al. 2025 (B.B. Scott's lab)
https://www.biorxiv.org/content/10.1101/2025.10.24.684388v1
#neuroscience #connectomics #ZebraFinch #songbirds #BasalGanglia
the first songbird #basalganglia #brain connectome:
-8,500 automated neuron reconstructions
-20 million synapses
-16 cell types
https://www.songbird-connectomics.org/
Now out in eBioMedicine!
📖 Read the open-access article: https://authors.elsevier.com/sd/article/S2352-3964(25)00432-3
#Neuroscience #Neurology #Parkinsonsdisease #Parkinsons #DeepBrainStimulation #DBS #Neurotechnology #Neuromodulation #Neurophysiology #BasalGanglia #OpenScience #Reproducibility
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.
How Brain Circuits Influence Mood, Behavior, and Social Skills
#BrainCircuits #Neuroscience #MentalHealth #BrainNetworks #EmotionAndDecision #DefaultModeNetwork #BasalGanglia #LimbicSystem #Neurobiology #CognitiveScience
Reward, Resistance, and Responsibility: The Brain’s Circuitry of Motivation and Control
#BrainCircuits #Neuroscience #DecisionMaking #BasalGanglia #Dopamine #Neocortex #Amygdala #Learning #Motivation #Addiction #NeuroscienceExplained #BrainScience #NeuralPathways #MindAndBehavior
Exploring the Mind-Body Connection: How Awareness Transforms Motor Skills
#MotorBehavior #MindfulMovement #BodyAwareness #Neuroscience #Balance #Posture #MotorSkills #BasalGanglia #Somatosensory #Hyperlordosis #SelfExpression #OculoMotor #HealthyLiving #MovementMatters #DanceThroughLife
#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 https://plos.io/3WC13cq
Dr. Aryn Gittis shared insights about basal ganglia circuits and the new deep brain stimulation protocol that she is developing which leverages knowledge of these circuits and neuron firing patterns to provide longer-lasting effects.
#basalganglia #brain #neuro #neuroscience #research #science #podcast #podcasts #scicomm #sciencecommunication #parkinsons #ParkinsonsDisease #PD #DBS #BrainStimulation
Referenced link: https://medicalxpress.com/news/2023-05-neuroscientists-long-held-theory-neural-pathways.html
Discuss on https://discu.eu/q/https://medicalxpress.com/news/2023-05-neuroscientists-long-held-theory-neural-pathways.html
Originally posted by Phys.org / @physorg_com: http://nitter.platypush.tech/medical_xpress/status/1661015892002754563#m
RT by @physorg_com: Neuroscientists challenge long-held theory about neural pathways in the #basalganglia @carnegiemellon @neurocellpress https://linkinghub.elsevier.com/retrieve/pii/S0896627323003021 https://medicalxpress.com/news/2023-05-neuroscientists-long-held-theory-neural-pathways.html
@jaztrophysicist @LegalizeBrain @ciredutempsEsme et puis ce #basalGanglia, quelle frime ! Les gens simples disent #lizardBrain #YLC
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."
https://link.springer.com/article/10.1007/s00221-023-06574-0
Interestingly, M1 and SMA responses related to better motor performance and the cortical distribution of responses matches with the involvement of the #basalganglia-thalamo-cortical network (5/5)
You can never fake having Slack #subgenius #revelation #mothman #ufo #havingslack #NotTheSlackUuseAtUrOffice #basalganglia #neocortex #sasquatch #zen #basketball #slackware #1337 #photoshopCS2 #crackznwarez #💣 #antioedipus #iconoclast
