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Titolo:
Past tense formation in Williams syndrome
Autore:
Thomas, MSC; Grant, J; Barham, Z; Gsodl, M; Laing, E; Lakusta, L; Tyler, LK; Grice, S; Paterson, S; Karmiloff-Smith, A;
Indirizzi:
Inst Child Hlth, Neurocognit Dev Unit, London WC1N 1EH, England Inst ChildHlth London England WC1N 1EH v Unit, London WC1N 1EH, England Univ Cambridge, Dept Expt Psychol, Cambridge CB2 3EB, England Univ Cambridge Cambridge England CB2 3EB hol, Cambridge CB2 3EB, England
Titolo Testata:
LANGUAGE AND COGNITIVE PROCESSES
fascicolo: 2-3, volume: 16, anno: 2001,
pagine: 143 - 176
SICI:
0169-0965(200104)16:2-3<143:PTFIWS>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
LANGUAGE IMPAIRMENT; CONNECTIONIST MODEL; VERB MORPHOLOGY; CHILDREN; ABILITIES; MEMORY; INDIVIDUALS; ACQUISITION; COGNITION; KNOWLEDGE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
65
Recensione:
Indirizzi per estratti:
Indirizzo: Thomas, MSC Inst Child Hlth, Neurocognit Dev Unit, 30 Guilford St, London WC1N 1EH, England Inst Child Hlth 30 Guilford St London England WC1N 1EH ngland
Citazione:
M.S.C. Thomas et al., "Past tense formation in Williams syndrome", LANG COGN P, 16(2-3), 2001, pp. 143-176

Abstract

It has been claimed that in the language systems of people with Williams syndrome (WS), syntax is intact but lexical memory is impaired. Evidence hascome from past tense elicitation tasks with a small number of participantswhere individuals with WS are said to have a specific deficit in forming irregular past tenses. However, typically developing children also show poorer performance on irregulars than regulars in these tasks, and one of the central features of WS language development is that it is delayed. We compared the performance of 21 participants with WS on two past tense elicitationtasks with that of four typically developing control groups, at ages 6, 8,10, and adult. When verbal mental age was controlled for, participants in the WS group displayed no selective deficit in irregular past tense performance. However, there was evidence for lower levels of generalisation to novel strings. This is consistent with the hypothesis that the WS language system is delayed because it has developed under different constraints, constraints that perhaps include atypical phonological representations. The results are discussed in relation to dual-mechanism and connectionist computational models of language development, and to the possible differential weightgiven to phonology versus semantics in WS development.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 20:56:27