PSY-220 Lecture Notes - Lecture 6: Posterior Parietal Cortex, Golgi Tendon Organ, Huntingtin

• School: University of Tampa
• Department: Psychology
• Course: PSY-220
• Professor: Odgaard, Eric C

Document Summary

Muscles and their movements (cont"d. : skeletal muscle types range from, fast-twitch: fibers produce fast contractions but fatigue rapidly, slow-twitch: fibers produce less vigorous contraction without fatigue, people have varying percentages of fast-twitch and slow-twitch muscles. Units of movement: reflexes are involuntary, consistent, and automatic responses to stimuli. Units of movement (cont"d. : many behaviors consist of rapid sequences of individual movements, central pattern generators are neural mechanisms in the spinal cord or elsewhere that generate rhythmic patterns of motor output, example: wing flapping in birds. Units of movement (cont"d. : medial corticospinal tract: set of axons from many parts of the cortex, reticular formation, midbrain tectum, and vestibular nucleus, vestibular nucleus is a brain area that receives information from the vestibular system. Units of movement (cont"d. : axons go to both sides of the spinal cord, allows control of muscles of the neck, shoulders, and trunk, enables movements such as walking, turning, bending, standing up, and sitting down.