Introduction to PsychologyEvolution of the BrainThe Cerebral CortexSlide 4Motor/Sensory CortexLanguage AreasAphasiasBrain PlasticitySplit-BrainsIntroduction to PsychologyClass 9: Neuroscience 2Myers: 52-62June 26, ’06Evolution of the BrainReptilian Paleomammalian NeomammalianThe Cerebral CortexFrontal (Forehead to top) Motor CortexParietal (Top to rear) Sensory CortexOccipital (Back) Visual CortexTemporal (Above ears) Auditory CortexMotor/Sensory CortexContra-lateralInverted “homunculus”Unequal representationLanguage AreasBroca’s Area-Expression-Motor aphasia Wernicke’s Area-Comprehension-Sensory aphasiaLEFT HEMISPHEREFILM: THE MIND: MODULE 8AphasiasMotor (telegraphic speech): "Yes... ah... Monday... er... Dad and Peter H... (his own name), and Dad.... er... hospital... and ah... Wednesday... Wednesday, nine o'clock... and oh... Thursday... ten o'clock, ah doctors... two... an' doctors... and er... teeth... yah.“Sensory (word salad): “I called my mother on the television and did not understand the door. It was too breakfast, but they came from far to near. My mother is not too old for me to be young. Word salad”Brain PlasticityThe brain’s capacity for modification of functioningShown by re-organization of pre-wiringExamples: Removal of hemisphere, blindfolding studyFILM: THE BRAIN - DVD 1 - MODULE 10Split-BrainsEpilepsy and the corpus callosumHemispheric specialization- Left hemisphere Logical, sequential, words/numbers, verbal/controls speech- Right hemisphere Intuitive, expressive, shapes/music/faces, non-verbalFILM: SCIENTIFIC AMERICAN - DVD 1 - SEGMENT
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