Kinesiology 1080A/B Lecture Notes - Lecture 6: Substantia Nigra, Subthalamic Nucleus, Basal Ganglia

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 1080A/B
• Professor: Matthew Heath

Document Summary

Wed, jan. 23/19 lecture 6,8,9: subcortical structures, Globus pallidus: blue - inhibitory, red - excitatory, gait/response - thalamus sends signals to the cortex. In the off phase; visual cues, auditory cues improves their gait. Fatigued by midday - ballistic movements: develop fast, involuntary rotational movements, pharmaceutical treatment, thalamus is always disinhibited leads to non stop excitation of m1 neurons. Important structure for the integrity of the cns: coordination of movement, balance and equilibrium and muscle tone (flexion, tension, clock of the cns. Supports new motor learning (long term implicit memories) Impairments to the cerebellum are unable to learn new motor skills: poor timing, improve circuitry = improved quality of their speech, disorder - cerebellar deficit, dysmetria, bilateral. Soft deficit to cerebellum: no structural damage, but incomplete neural connections --> developing the deficit. Stroke: hemorrhagic, rupture of arterial wall leads to bleeding within the brain, blood is toxic to the neurons, blood will affect any neurons nearby.