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Titolo:
Hemispheric asymmetries in activation and integration of categorical information
Autore:
Koivisto, M; Laine, M;
Indirizzi:
Univ Turku, Dept Psychol, FIN-20014 Turku, Finland Univ Turku Turku Finland FIN-20014 ept Psychol, FIN-20014 Turku, Finland
Titolo Testata:
LATERALITY
fascicolo: 1, volume: 5, anno: 2000,
pagine: 1 - 21
SICI:
1357-650X(200001)5:1<1:HAIAAI>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL HEMISPHERES; WORD RECOGNITION; APHASIA; RETRIEVAL; MEANINGS; IDENTITY; LESIONS; TIME;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Koivisto, M Univ Turku, Dept Psychol, FIN-20014 Turku, Finland Univ TurkuTurku Finland FIN-20014 FIN-20014 Turku, Finland
Citazione:
M. Koivisto e M. Laine, "Hemispheric asymmetries in activation and integration of categorical information", LATERALITY, 5(1), 2000, pp. 1-21

Abstract

Hemispheric asymmetries in activation and integration of semantic information were studied in the normal brain. In Experiment 1, categorically related primes and targets (HAND-NOSE) were presented to the left visual field (LVF) or to the right visual field (RVF) in a primed lexical decision task. The ratio of nonword targets in relation to all unrelated targets in the stimulus lists was manipulated. It was assumed that at the low nonword ratio the priming effects would primarily tap automatic semantic processing. At the higher ratio, priming would be generated predominantly by postlexical meaning integration or semantic matching. The results revealed automatic printing in the RVF/left hemisphere and postlexical priming in the LVF/right hemisphere, Experiment 2 measured automatic categorical activation with the lower nonword ratio and by presenting primes at the centre: of the field. Bilateral priming was observed. It is suggested that the left hemisphere automatically activates categorically related word meanings in both hemisphere. The right hemisphere contributes by maintaining the meanings active and by retrospectively integrating them to the context.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 12:16:15