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Titolo:
GESTURE AND THE PROCESSING OF SPEECH - NEUROPSYCHOLOGICAL EVIDENCE
Autore:
HADAR U; WENKERTOLENIK D; KRAUSS R; SOROKER N;
Indirizzi:
TEL AVIV UNIV,DEPT PSYCHOL,POB 39040 IL-69978 TEL AVIV ISRAEL COLUMBIA UNIV NEW YORK NY 10027 LOEWENSTEIN HOSP & REHABIL CTR RAANANA ISRAEL TEL AVIV UNIV,SACKLER SCH MED IL-69978 TEL AVIV ISRAEL
Titolo Testata:
Brain and language
fascicolo: 1, volume: 62, anno: 1998,
pagine: 107 - 126
SICI:
0093-934X(1998)62:1<107:GATPOS>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
BODY MOVEMENT; HAND GESTURES; APHASIA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Citazioni:
41
Recensione:
Indirizzi per estratti:
Citazione:
U. Hadar et al., "GESTURE AND THE PROCESSING OF SPEECH - NEUROPSYCHOLOGICAL EVIDENCE", Brain and language, 62(1), 1998, pp. 107-126

Abstract

Patterns of speech-related ('coverbal') gestures were investigated inthree groups of right-handed, brain-damaged patients and in matched controls. One group had anemic aphasia with a primarily semantic impairment ('semantic'); one group had a primarily phonological impairment, reflected in both repetition and naming ('phonologic'); a third group had a primarily conceptual impairment, with relatively good naming ('conceptual'). Coverbal gestures were video recorded during the description of complex pictures and analyzed for physical properties, timing in relation to speech and ideational content. The semantic and phonologic subjects produced a large number of ideational gestures relative totheir lexical production, while the related production of the conceptual subjects was similar to that of the unimpaired controls. The composition of ideational gestures in the semantic and phonologic groups was similar to that of the control groups, while conceptual subjects produced fewer iconic gestures (i.e., gestures that show in their form the content of a word or phrase). The iconic gestures of the conceptual patients tended to start further from their lexical affiliates than those of all other subjects. We conclude that ideational gestures probably facilitate word retrieval, as well as reflect the transfer of information between propositional and non-propositional (visual and motoric) representations during message construction. We suggest that conceptual and lexical processes differ in the way they constrain ideational gestures. (C) 1998 Academic Press.

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Documento generato il 29/11/20 alle ore 06:21:51