CGSC170 Lecture Notes - Lecture 8: American Sign Language, Dysarthria, Hearing Loss

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

Document Summary

Disorder in language faculty from damage to specific brain regions. Disrupts two-way link/translation: language / thought: la(cid:374)guage: (cid:862)(cid:373)e(cid:374)tal spee(cid:272)h(cid:863), g(cid:396)a(cid:373)(cid:373)ati(cid:272)al s(cid:455)(cid:373)(cid:271)ols, thought = nonverbal mental representation, thought cannot be translated into. Not limited to modality: auditory/spoken as well as visual/signed langs: e. g american sign language can be impaired by aphasia. Different parts of mental grammar+lexicon may be disrupted: phonology, morphology, syntax, semantics. Deafness a disorder of perception, specific to hearing. Blindness a disorder of perception, specific to sight. Deaf and blind individuals have no trouble with language production and comprehension in their unimpaired modality: their deficit is not specific to language (cannot hear/see non-ling stimuli either) Aphasics have trouble with language comprehension and/or production in every modality: but they have no trouble with perceiving (hearing, seeing, etc) stimuli that are not linguistic in nature. Aphasia is not a disorder of (muscle) movement. Speech sounds relatively normal except for slurred pronunciation.