Transcript Cortical vs. subcortical loops

Cortical vs. subcortical loops
Lateral inhibition in striatum
Switching from one action to another
Direct and indirect pathways
Hyperdirect pathway
Lesions that cause hemiballism
Direct pathway
Indirect pathways
Loops through the basal ganglia
Circuit name
Basal ganglia
regions:
Connected with:
Functions to control:
Skeletomotor
Putamen; GPi, and
SNpr
VL/VA; motor cortex,
prefrontal cortex
Actions
Oculomotor
Body of the caudate,
SNpr
Intralaminar nuclei, MD,
Gaze and orienting
VA; frontal and parietal eye movements
fields; superior colliculus
Dorsolateral
prefrontal
Head of the caudate,
GPi and SNpr
VA, VL and MD;
Executive function,
strategic planning
Orbitofrontal
Caudate, SNpr,
ventral pallidum
MD; orbitofrontal cortex
Motivation, ability to
play well with others
Anterior
cingulate aka
limbic
Ventral striatum,
ventral pallidum
MD; anterior cingulum
Emotionality,
motivated behavior