Target-nontarget similarity modulates stimulus-driven control in visual search

Document Type: 
Article
Article Type: 
Experimental
Disciplines: 
Psychology
Topics: 
Attention
Keywords: 
attention, vision, visual search, stimulus-driven, goal-directed, attentional capture
Deposited by: 
Dr. Michael J. Proulx
Date of Issue: 
2006
Authors: 
Michael J. Proulx, Howard E. Egeth
Journal/Publication Title: 
Psychonomic Bulletin & Review
Volume: 
13
Issue Number: 
3
Page Range: 
524-529
Official URL: 
http://www.ingentaconnect.com/content/psocpubs/pbr/2006/00000013/00000003/art00024
Alternative URL: 
http://mproulxjhu.googlepages.com
Abstract: 
The literature contains conflicting results concerning whether an irrelevant featural singleton (an item unique with respect to a feature such as color or brightness) can control attention in a stimulus-driven manner. The present study explores whether target–nontarget similarity influences stimulus-driven shifts of attention to a distractor. An experiment evaluated whether manipulating target–nontarget similarity by varying orientation would modulate distraction by an irrelevant feature (a bright singleton). We found that increasing target–nontarget similarity resulted in a decreased impact of a uniquely bright object on visual search. This method of manipulating the target–nontarget similarity independent of the salience of a distracting feature suggests that the extent to which visual attention is stimulus-driven depends on the target–nontarget similarity.
AttachmentSize
ProulxEgethPBRpreproof.pdf188.79 KB