Simon Effect with and without Awareness of the Accessory Stimulus

Autor/inn/en	Treccani, Barbara; Umilta, Carlo; Tagliabue, Mariaelena
Titel	Simon Effect with and without Awareness of the Accessory Stimulus
Quelle	In: Journal of Experimental Psychology: Human Perception and Performance, 32 (2006) 2, S.268-286 (19 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0096-1523
Schlagwörter	Cues; Visual Stimuli; Reaction Time; Experimental Psychology; Attention; Intervals + Suchen Sie Ihr Suchwort? Stichwort; Reaktionsvermögen; Experimentelle Psychologie; Aufmerksamkeit
Abstract	The authors investigated whether a Simon effect could be observed in an accessory-stimulus Simon task when participants were unaware of the task-irrelevant accessory cue. In Experiment 1A a central visual target was accompanied by a suprathreshold visual lateral cue. A regular Simon effect (i.e., faster cue-response corresponding reaction times [RTs]) was found. Experiment 1B demonstrated that this effect cannot be attributed to perceptual grouping of the target and cue. Experiments 2A, 2B, and 2C showed a reverse Simon effect (i.e., faster noncorresponding RTs) when participants were not aware of the cue. In this condition, the Simon effect would occur relative to the reorientation of attention from the cue, which would initially capture attention, toward the target. This conclusion is supported by the results of Experiments 3A and 3B, in which the reorientation of attention was induced by having the target flash after its onset. With suprathreshold cues either a reverse or regular Simon effect was observed by using a 100-ms or [cubed]200-ms onset flashing interval, respectively, whereas with subthreshold cues a reverse Simon effect was found irrespective of the interval length. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10