PSYC 280 Study Guide - Hemispatial Neglect, Angular Gyrus, Auditory Cortex
Document Summary
Aphasia: damage on the left cerebral hemisphere of brain can affect language abilities. Broca"s area: frontal lobe of brain involved in speech. Neologisms: nonsense words; generated with the insertion/substitution of one or more phonemes. Nonfluent speech: talking with effort, in short sentences (no melodic like character of conversational speech) Agraphia: trouble with writing & alexia: trouble with reading (many aphasias have this) Those with aphasia produce a motor impairment: apraxia: difficulty in executing a sequence of movements; impaired ability to do skilled voluntary movements, even though there"s no muscle paralysis. Aphasia is a result of problems with motor mechanisms but good at one domain (eg: detect if one is lying) Lesions of a left frontal speech zone cause nonfluent/broca"s aphasia. Difficulty in producing speech, talking only in a hesitant manner, reading&writing impaired. But can utter automatic speech ( hello , omg , swears), and good w/ comprehension of language.