PSY100H1 Chapter Notes -Prefrontal Cortex, Limbic System, Autonomic Nervous System
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PSY100H1 Full Course Notes
Verified Note
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Document Summary
Human brain has 100 billion neurons, 10 thousand-150 thousand synapses. Neuroimaging machine monitors biochemical events in a series of conceptual slices through persons brain while comp takes info and constructs visual images of the brain showing which regions have been metabolically most active. Non invasive, pet, fmri-movie pictures constructed to show brain active changing over time showing diff emotional states. Anatomy, lesions, stimulation, pharmacology (drugs), electrical recording. Hindbrain-control basic physiological processes: medulla-regulates cardiovascular activity, pons-control human sleep, cerebellum-control motor movement. Forebrain-includes thalamus (integrates sensory info), hippocampus (memory), hypothalamus (eat,sex behavior,aggression, body temp), limbic system (emotion-amygdala, and cortex which sets human brain apart from other species) Frontal lobes of cortex-planning and intentional action, emotion regulation. Cannon,bard-cats deprived of their cortex made sudden, inappropriate, ill directed attacks (sham rage). If fed and carefully taken care of, cats live longer with few spontaneous movement except this angry sham rage. Cannon proposed that the cortex usually inhibits this expression.
