PSY2061 Lecture Notes - Lecture 6: Basal Ganglia, Premotor Cortex, Brainstem

• School: Monash University
• Department: Health Sciences - Psychology
• Course: PSY2061
• Professor: Jake Hoskin

Document Summary

Cerebellum: inputs from cortex, brain stem, spinal cord, outputs to spinal cord, motor cortex. oculomotor nuclei, integration, comparator. Ne tuning: well- learned automatic" movements. Primary motor cortex (m1: conscious, voluntary movement, early stage of learning, distal-contralateral, proximal-bilateral. Indirect pathways via brain stem: medial pathways. Vestibulo - spinal - balance and posture. Reticulo - spinal - posture, re ex modulation. Tecto - spinal - coordination of head & eye movements: lateral pathways. Rubro- spinal -distal musculature: aminergic pathways. Arousal, nonspeci c - regulates sensitivity of descending commands (gain) Concept 4: the neural control of movement can be understood as both hierarchal and parallel. Hierarchal: spinal cord > pattern generation, brain stem > controller, relay, cortex > controller. Parallell: direct connections between cx and basal ganglia, cerebellum, spinal cord, direct and indirect connections to mns. Translating goal into movement = competitive process. All areas promote movement, but relative contribution varies as a function of task.