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Titolo:
Hemispheric dissociations in controlled lexical-semantic processing
Autore:
Koivisto, M;
Indirizzi:
Univ Turku, Dept Psychol, FIN-20014 Turku, Finland Univ Turku Turku Finland FIN-20014 ept Psychol, FIN-20014 Turku, Finland
Titolo Testata:
NEUROPSYCHOLOGY
fascicolo: 4, volume: 13, anno: 1999,
pagine: 488 - 497
SICI:
0894-4105(199910)13:4<488:HDICLP>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL HEMISPHERES; WORD RECOGNITION; DECISION; TARGET; PRIME; ACTIVATION; STIMULUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
35
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, "Hemispheric dissociations in controlled lexical-semantic processing", NEUROPSYCHL, 13(4), 1999, pp. 488-497

Abstract

Cognitive mechanisms of semantic priming in individuals with intact cerebral hemispheres were studied using the visual half-field method and lexical-decision tasks. In Experiment 1, unidirectionally associated word pairs were presented in a forward direction (e.g., BEAVER-TAIL) to isolate priming attributable to automatic activation or expectancy-based processing. Forwardpriming was restricted to the right visual field-left hemisphere, and it occurred only when expectancy-based processing was encouraged in the instructions. Experiments 2 and 3 found backward priming (e.g., TAIL-BEAVER) only in the left visual field, indicating that the right hemisphere contributes to retrospective semantic matching of the target back to the prime. The results suggest that the 2 hemispheres have different roles in controlled processing of semantic relations.

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Documento generato il 23/01/20 alle ore 03:33:23