| Autor: |
Spalek TM; Department of Psychology, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada. tspalek@sfu.ca, Yanko MR, Poiese P, Lagroix HE |
| Jazyk: |
angličtina |
| Zdroj: |
Psychological research [Psychol Res] 2012 Jan; Vol. 76 (1), pp. 8-19. Date of Electronic Publication: 2011 Mar 30. |
| DOI: |
10.1007/s00426-011-0329-4 |
| Abstrakt: |
Two sources of attentional capture have been proposed: stimulus-driven (exogenous) and goal-oriented (endogenous). A resolution between these modes of capture has not been straightforward. Even such a clearly exogenous event as the sudden onset of a stimulus can be said to capture attention endogenously if observers operate in singleton-detection mode rather than feature-search mode. In four experiments we show that a unique sudden onset captures attention even when observers are in feature-search mode. The displays were rapid serial visual presentation (RSVP) streams of differently coloured letters with the target letter defined by a specific colour. Distractors were four #s, one of the target colour, surrounding one of the non-target letters. Capture was substantially reduced when the onset of the distractor array was not unique because it was preceded by other sets of four grey # arrays in the RSVP stream. This provides unambiguous evidence that attention can be captured both exogenously and endogenously within a single task. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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