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day16 - Psychology 2050 Perception 21 October 10 Day 16...

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Psychology 2050 Perception 21 October 10 Day 16 Final Exam Location: 201 Rockefeller (Schwartz Aud) 7 PM, Tues 14 Dec
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           Hemispheric Specialization Handedness -  contralateral & ipsilateral writing style adductors - "towards" abductors - "away" Cortex -  lobes & fissures -  hemispheric asymmetries   occipital, parietal, temporal, frontal central sulcus (fissure of Rolando) & Sylvian fissure Heschl's gyrus, planum temporale corpus callosum Brain damage -  lesions, tumors, & stroke (CVA); glia Phineas Gage - frontal lesions Aphasia -   Broca - frontal lesion near sulci         Wernicke - temporo-parietal tumor (TPJ)         stroke - ischemic (TIA), hemorrhagic Epilepsy -  commissurotomy (split-brain) -ectomy vs. -otomy cross - cueing hemispheric specialization vs.hemispheric dominance
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terms for left-handedness left - left out, left over (right = correct, true) gauche - French, awkward, clumsy (droit = correct, lawful) sinister - Latin, evil (dexter => dexterous) bongo - Romany, crooked or evil canhoto - Portuguese, weak or mischievous kejthandet - Danish, cat handed mancini - Italian, crooked zurdo - Spanish, wrong (same root as “absurd” in English) cack-handed - slang British English from middle-eastern and asian traditions of cleaning oneself with the left hand; eating with the right hand
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Occurrence of left-handedness   ~5% in US in 1910 ~12% in US in 1935 Benjamin Spock The common sense book of baby and child care , 1946 ~10-15% in Caucasian & African populations   ~5-10% in Asian populations ~15% in males (US) ~10% in females (US)  
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Left handedness  -- more variability rare in lawyers; more common in artists left-handers 10 times more likely to be dyslexic 2.5 times more likely to have immune disorders 15% of 30-yr-old males are left handed; 2% of 80-yr-old males are left-handed males wind up making ~20% more money   left handers more intelligent?
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