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Titolo:
Activation and inhibition of stimulus features in conjunction search
Autore:
Koshino, H;
Indirizzi:
Calif State Univ San Bernardino, Dept Psychol, San Bernardino, CA 92407 USA Calif State Univ San Bernardino San Bernardino CA USA 92407 CA 92407 USA
Titolo Testata:
PSYCHONOMIC BULLETIN & REVIEW
fascicolo: 2, volume: 8, anno: 2001,
pagine: 294 - 300
SICI:
1069-9384(200106)8:2<294:AAIOSF>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
VISUAL-SEARCH; SELECTIVE ATTENTION; PERCEPTUAL LOAD; GUIDED SEARCH; POP-OUT; PARALLEL; OBJECTS; RETRIEVAL; SUBSET; LOCUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Koshino, H Calif State Univ San Bernardino, Dept Psychol, 5500 Univ Pkwy, San Bernardino, CA 92407 USA Calif State Univ San Bernardino 5500 Univ PkwySan Bernardino CA USA 92407
Citazione:
H. Koshino, "Activation and inhibition of stimulus features in conjunction search", PSYCHON B R, 8(2), 2001, pp. 294-300

Abstract

Two visual search experiments were conducted to examine how activation of target-relevant features and inhibition of target-irrelevant features ate involved in conjunction search. The hypothesis was that if an excitatory mechanism is involved, it should be revealed as facilitation when a target anddistractors are repeated in two successive displays. If an inhibitory mechanism is involved, suppression should be obtained when distracter features from one display determine the target in the following display. The resultsof Experiment 1 showed that facilitation was observed consistently across two set sizes (5 and 9), whereas suppression was obtained only with larger set size (9). This pattern of results was replicated and extended in Experiment 2 with different set size. It seems that both excitatory and inhibitory mechanisms are involved in conjunction search. The excitatory mechanism seems to play a role in conjunction search regardless of search difficulty, whereas the inhibitory mechanism might play a role only when set size is larger.

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Documento generato il 02/06/20 alle ore 02:01:36