PSYC 251 Lecture Notes - Lecture 2: Reinforcement Learning, Substantia Nigra, Gyrus
2 Nov 2016
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Document Summary
Brain stem organized similarly to the spinal cord. Brainstem: breathing, heart rate, blood pressure, etc . Midbrain: inferior colliculi: audition (hearing, superior colliculi: vision and eye movements, substantia nigra: dopamine, reward learning, addiction, movement, etc . Cerebellum: motor control, coordination, posture, equilibrium, etc. Hypothalamus: hormone release, body temperature, hunger, thirst sleep etc. Thalamus: sensory motor hub and relay, lateral geniculate nucleus: visual relay, medial geniculate nucleus: auditory relay. Caudate: voluntary movement and goal-directed action. Putamen: motor skills and reinforcement learning, globus pallidus. Regulation of voluntary movement: nucleus accumbebs. Aversion, motivation, pleasure, and reward: amygdala. Emotion including fear, long-term memory: hippocampus. Frontal lobe (front), parietal lobe (upper), occipital lobe (back), temporal lobe (bottom) Sulci and ssures= folds/ clefts in the cortex. Cerebral cortex: lateral/sylvian ssure (temporal/frontal lobe seperation, central sulcus (frontal lobe/parietal lobe, longitudinal ssure (separating two hemispheres, cingulate sulcus (frontal parietal lobe) (middsaggital view of brain, calcarine sulcus (visual cortex) Gyri= ridges in the cortex precentral gyrus and postcentral gyrus.
