CGSC170 Lecture Notes - Lecture 7: Norman Geschwind, Paul Broca, Primary Motor Cortex

• School: University of Delaware
• Department: Cognitive Science
• Course: CGSC170
• Professor: Rhodes Ryan

Document Summary

Most language function localized in left hemisphere: (cid:862)left he(cid:373)isphe(cid:396)e do(cid:373)i(cid:374)a(cid:374)(cid:272)e(cid:863, 95% for right-handers, 70% for left-handers localization independent of modality, spoken language, sign language produced with both hands. Aphasia language deficit/disorders of particular parts of the language faculty as the result of damage to particular brain regions from injury. Patients who suffer from aphasia are aphasics. Broca and wernickle two major types we will look at: Paul broca (1824-1880) french surgeon who worked with patients with brain damage from stroke or injury who had aphasia of a specific type. Carl wenicke (1848-1905) german physician, anatomist, psychiatrist and neuropathologist. One-to-one mapping/dou(cid:271)le disso(cid:272)iatio(cid:374) (cid:894)(cid:862)(cid:1005) (cid:1005)(cid:863)(cid:895) f(cid:396)o(cid:373) pa(cid:396)ts of the la(cid:374)guage fa(cid:272)ult(cid:455) to ea(cid:272)h t(cid:455)pe of aphasia (cid:894)b(cid:396)o(cid:272)a"s, we(cid:396)(cid:374)i(cid:272)k"s(cid:895) A si(cid:373)plified (cid:448)ie(cid:449) fo(cid:396) patie(cid:374)ts (cid:449)ho e(cid:454)hi(cid:271)it (cid:862)(cid:272)lassi(cid:272)(cid:863) s(cid:455)(cid:373)pto(cid:373)s. Primary motor cortex in frontal lobes: send impulses to muscles that cause them to contract and make movements, e. g. muscles of mouth, used in speaking.