PSY315H5 Lecture 10: Language Development in Special Populations.docx
Document Summary
Special populations: sensory deficits, language development & deafness, language development & blindness, cognitive disorders, downs syndrome, williams syndrome, fragile x syndrome, social impairment: autism spectrum disorders, specific language impairment. Language environments of prelingually deaf children: deaf children of hearing parents, oralist method, total communication, cochlear implants, deaf children of deaf parents, sign language from infancy. Implications for the neural basis of human language: pet study, participants: 5 native asl signers, 6 native lso (used by french canadian signers, distinct natural languages, 10 english speaking controls with no knowledge of sign language, results, similar activation areas in all participants when generating verbs in response to nouns, activation in language area in deaf, but not hearing in response to visual presentation of signs, discussion, common areas of activation in deaf & hearing individuals supports proposal that areas previously thought to be speech processing are instead specialized for language processing.
