PSYC 200 Chapter Notes - Chapter 3: Caudate Nucleus, Olfactory Bulb, Striatum

• School: University of Calgary
• Department: Psychology
• Course: PSYC 200
• Professor: Peter Van Der Velde

Document Summary

The convolutions of the brain (or folds) are called gyri or sulci. Three major divisions of the brain: hindbrain: consists of pons, reticular formation, cerebellum, medulla. Located at the posterior portion of the brain, these structures make up the brain stem. Medulla: located above spinal cord, responsible for vital reflexes such as breathing, heart rate, vomiting, salivation, coughing, and sneezing. Cerebellum: has many deep folds, receives info from various motor systems of the brain, helps regulate motor movement, important for shifting attention between visual and auditory stimuli. Between the medulla and midbrain, a netlike formation alerts higher centers (ascending pathways) or screens incoming info of the brain (descending pathways). It filters out irrelevant info and passes on important info to higher center. It also arouses attention needed to be alert of even conscious. Severe damage causes a permanent coma: midbrain: contains clusters of sensory and motor neurons.