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Titolo:
Executive control in set switching: Residual switch cost and task-set inhibition
Autore:
Arbuthnott, K; Frank, J;
Indirizzi:
Univ Regina, Dept Psychol, Regina, SK S4S 0A2, Canada Univ Regina Regina SK Canada S4S 0A2 Psychol, Regina, SK S4S 0A2, Canada
Titolo Testata:
CANADIAN JOURNAL OF EXPERIMENTAL PSYCHOLOGY-REVUE CANADIENNE DE PSYCHOLOGIE EXPERIMENTALE
fascicolo: 1, volume: 54, anno: 2000,
pagine: 33 - 41
SICI:
1196-1961(200003)54:1<33:ECISSR>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
RANDOM GENERATION; DYSEXECUTIVE SYNDROME; WORKING-MEMORY; PERFORMANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Arbuthnott, K Univ Regina, Dept Psychol, Regina, SK S4S 0A2, Canada Univ Regina Regina SK Canada S4S 0A2 na, SK S4S 0A2, Canada
Citazione:
K. Arbuthnott e J. Frank, "Executive control in set switching: Residual switch cost and task-set inhibition", CAN J EXP P, 54(1), 2000, pp. 33-41

Abstract

Executive processes necessary for flexibly switching between different tasks were studied using a set switching paradigm that requires participants to rapidly switch between different tasks across consecutive trials. Switch cost reflects poorer performance for task-switch trials than for consecutive same-task trials. Significant switch cost was observed even with considerable preparation time before a task-switch, an effect known as residual switch cost. This study rested the hypothesis that one process underlying residual switch cost is inhibition of the previous task-set. We used semantic categorization tasks to compare switch cost between alternating task series (ABA) and nonalternating series (ABC) in order to test the generality of a task-set inhibition effect previously observed with perceptual judgment tasks (Mayr & Keele, in press). The results yielded significant switch cost only for alternating tasks, in both response times and errors resulting from performance of the wrong task. Thus, resolving inhibition associated with previously abandoned task-sets may be the main process underlying residual switch costs, suggesting that task-set inhibition is an important executive control process.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 22:22:02