Specific Language Impairments in Children : Phonology, Semantics, and the English Past Tense  

Oleh:

Joanisse, Marc F.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Current Directions in Psychological Science vol. 13 no. 04 (Aug. 2004), page 156-160.
Topik: specific language impairment; connectionism; English past tense; speech perception
Fulltext: 07. Specific Language Impairments in Children - Phonology, Semantics, and the English Past Tense.pdf (120.64KB)

Isi artikel

Theories of specific language impairment (SLI) in children turn on whether this deficit stems from a grammarspecific impairment or a more general speech-processing deficit. This issue parallels a more general question in cognitive neuroscience concerning the brain bases of linguistic rules. This more general debate frequently focuses on past-tense verbs, specifically, whether regular verbs (bake-baked) are encoded as rules, and whether irregular forms (take-took) are processed differently. Children with SLI have difficulties with past tenses, so SLI could represent an impairment to rules. An alternative theory explains past-tense deficits in SLI as resulting from a phonological deficit. Evidence for this theory has been obtained from connectionist models of past-tense impairments and from behavioral studies of language- and reading-impaired children. The data suggest that SLI is not an impairment to linguistic rules, that past-tense impairments can be explained as resulting from a perceptual deficit, and that a single processing mechanism is ideally suited to account for these children’s difficulties.

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