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ERIC Number: EJ781503
Record Type: Journal
Publication Date: 2007-Dec
Pages: 17
Abstractor: Author
Reference Count: 0
ISSN: ISSN-0096-1523
The Role of Spatial and Nonspatial Information in Visual Selection
Theeuwes, Jan; Van der Burg, Erik
Journal of Experimental Psychology: Human Perception and Performance, v33 n6 p1335-1351 Dec 2007
Even though it is undisputed that prior information regarding the location of a target affects visual selection, the issue of whether information regarding nonspatial features, such as color and shape, has similar effects has been a matter of debate since the early 1980s. In the study described in this article, measures derived from signal detection theory were used to show that perceptual sensitivity is affected by a top-down set for spatial information but not by a top-down set for nonspatial information. This indicates that knowing where the target singleton is affects perceptual selectivity but that knowing what it is does not help selectivity. Furthermore, perceptual sensitivity can be enhanced by nonspatial features, but only through a process related to bottom-up priming. These findings have important implications for models of visual selection.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A