PSYC 2360 Lecture Notes - Lecture 2: Supplementary Motor Area, Basal Ganglia, Motor Cortex

• School: University of Manitoba
• Department: Psychology
• Course: PSYC 2360
• Professor: Jonathan Marotta

Document Summary

Ventral tract = posture-(are ipsilateral and contralateral: corticobulbar pathway = control of face and tongue. Upper part of face is ipsilateral and contralateral lower part of face = only contralateral (damage of nerve 7 facial nerve = Motor cortex & cerebellum red nucleus of midbrain cerebellum. Motor control and coordination: ventromedial pathway: Involved in posture, eye-coordination and coordination of head and trunk movements: brain stem disorders: Locked in syndrome: complete paralysis because of bilateral lesions of motor pathway; they still have control over their eyes. Amyotrophic lateral sclerosis (als or lou gehrig"s disease): affects neurons in cortex, brainstem and spinal cord: cerebellum: Ipsilaterally controlled (right side of cerebellum controls right side of body) Important for motor learning and motor control. Vermis (including fastigial nuclei): receives somatosensory and kinesthetic info; ventromedial pathway; used to maintain posture. Intermediate (including the interposed nuclei): receives info from red nucleus of midbrain and spinal cord.