Fractionating the preview benefit in search : dual-task decomposition of visual marking by timing and modality
Humphreys, Glyn W., Watson, Derrick G. and Jolicœur, Pierre. (2002) Fractionating the preview benefit in search : dual-task decomposition of visual marking by timing and modality. Journal of Experimental Psychology: Human Perception and Performance, Vol.28 (No.3). pp. 640-660. ISSN 0096-1523Full text not available from this repository.
Official URL: http://dx.doi.org/10.1037//0096-15184.108.40.2060
Providing participants with a preview of half the distractors in a visual search task facilitates performance. The present study examined the effects of secondary tasks on the preview benefit in search. Participants had to attend to a visual or an auditory stream of digits that began either (a) at the onset of the preview or (b) after the preview. Secondary tasks that onset with the preview disrupted the preview benefit irrespective of their modality. Only visual secondary tasks disrupted the benefit in the delayed condition. These selective interference effects suggest that the preview benefit can be fractionated into 2 components: an initialization component that involves modality-independent resources and a maintenance component that depends on visual resources. Results are discussed in relation to theoretical accounts of the preview benefit in search.
|Item Type:||Journal Article|
|Subjects:||B Philosophy. Psychology. Religion > BF Psychology|
|Divisions:||Faculty of Science > Psychology|
|Library of Congress Subject Headings (LCSH):||Distraction (Psychology), Visual discrimination, Visual perception|
|Journal or Publication Title:||Journal of Experimental Psychology: Human Perception and Performance|
|Publisher:||American Psychological Association|
|Number of Pages:||21|
|Page Range:||pp. 640-660|
|Funder:||Royal Society (Great Britain), Economic and Social Research Council (Great Britain) (ESRC), Medical Research Council (Great Britain) (MRC), Human Frontier Science Program (HFSP)|
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