PSYC 4460 Lecture Notes - Lecture 7: Specific Language Impairment, Language Disorder, Communication Disorder

• School: York University
• Department: Psychology
• Course: PSYC 4460
• Professor: Magdalena Wojtowicz

Document Summary

Late language emergence: significant delays in receptive or expressive languages (delays in understanding language or speaking it, may indicate a precursor to id, asd. Specific language impairment: deficits in language that are not explained by id or another medical/psychiatric condition, problems in phonology, morphology (word structure), grammar (rules that govern morphology and the syntax in a sentence), and semantics (overextension and underextensions) Genes and brain structure: heritability: 40, lateral sulcus: large gyrus in the left hemisphere, broca"s area, wernicke"s area, p1 (both areas are equal in size rather than being asymmetrical favoring the left side) Auditory perception problems: ability to identify and differentiate sounds (difference in 2 tones with different pitch, phonemes with different sounds) Deficits in rapid temporal processing: ability to quickly and accurately process sensory information, asking children to discriminate between stimuli quickly. Delays in short-term memory: ability to hold auditory material in memory for short periods of time.