PSYCH Lecture 5 - The Brain II

PSYCH Lecture 5 - The Brain II - The Brain Part Two The...

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Unformatted text preview: The Brain Part Two The Brain: The Hindbrain, Midbrain and Forebrain The HINDBRAIN • Medulla: – regulates automatic functioning: circulation, breathing, muscle tone, reflexes (sneezing/salivating) – survival- necessary. – Can’t survive if destroyed • Pons: – Regulates sleeping, waking & dreaming • Cerebellum: – balance and coordination of movement; analyzes sensory information; may play a role in remembering simple skills, problem solving The MIDBRAIN • Reticular Formation: – modulates muscle reflexes, pain perception; active in states of arousal. Damage to this area may result in comas • Tectum: – involved in auditory and visual responses • Tegmentum: – Controls some motor functions, regulates awareness & attention and some autonomic functions The FOREBRAIN The Forebrain… • Thalamus: – relays motor impulses out of the brain; – directs incoming sensory messages to higher centers • Hypothalamus: – Hunger, thirst, emotion, sex & reproduction, body temperature and the autonomic – 4 Fs: fighting, fleeing, feeding, “mating” • Pituitary Gland: – master gland governed by the hypothalamus • Limbic System: – loosely interconnected structures involved in emotions. No clear boundaries • Amygdala: – Emotion and aggression – evaluates sensory information, linked to fear...
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This note was uploaded on 01/21/2012 for the course PSYCH 111 taught by Professor Schreier during the Winter '08 term at University of Michigan.

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PSYCH Lecture 5 - The Brain II - The Brain Part Two The...

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