CLD 206 Lecture Notes - Lecture 11: Aphasia, Facilitated Communication, Intellectual Disability
6 Dec 2017
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Language general cognitive abilities (williams & down syndromes; specific language impairment) Language mirror neurons/theory of mind (autism: applied research reason: to help these populations. 1 in 1000 children severe hearing impairment since birth; others lose hearing during l acquisition. Otitis media (middle ear infection) intermittent hearing impairment. Before 0;6: delayed canonical babbling; altered vowels. Temporary hearing loss by 1;6 risk of l delay @ 3;0. Yet: other studies report small or no effects @ 3;0. Children appear to catch up by 5;0: 90% deaf of hearing ; 10% deaf of dead (l1 = a sign language, unfortunately, the 90% were historically educated in the oralist or total communication traditions. Acquisition of sign languages: same stages, same order (but manual babbling, make similar errors: over-regularizations, overextensions, first signs are context- bound. Home sign: conventionalized signs, grammatical categories, consistent word order: fully- fledged morphology & complex syntax might require a community of speakers, cochlear implant gap stops widening.
