NEUR 3206 Lecture Notes - Lecture 19: Substantia Nigra, Basal Ganglia, Mirror Neuron
18 Dec 2019
School
Department
Course
Professor
Document Summary
Motor planning in area 6 stimulation here complex movement penfield on either side of the body. Evarts et al demonstrated importance of area 6 in planning movement. Monkey experiment mentalrehearsal activationof area 6 not 4 foundusingpet ready parietal frontal lobe set supplementary premotorareas i e area 6 works foripsilateral contralateral hand for a specifictype ofmovement. Go area4 apraxia selectiveinability to performcomplex but not simple motor acts. Mirror neurons some neurons in area 6 respond when movement. Area7 input from higher order visual cortical areas such as mt. Axonaloutputconvergence on area 6 where what actions areconverted into how lobe abstract thought decision making anticipating consequence. Basal ganglia which action input 2 ventral lateral nucleus of thalamus output intofrontal lobe. Parallel circuits initiation w moodstates limbic loop along w cerebellum influencesmovementby modulating upper motor neurons n direct effect on spinal interneurons or lower motor neurons gatingthoughtprocess1memory attention transition regions of brain matter w axon components striatum caudal putamen.
