| ECVision indexed and annotated bibliography of cognitive computer vision publications This bibliography was created by Hilary Buxton and Benoit Gaillard, University of Sussex, as part of ECVision Specific Action 8-1 The complete text version of this BibTeX file is available here: ECVision_bibliography.bib
S. P. Vecera and M. Behrmann
ABSTRACT
Because the visual system cannot process all of the items present in a visual scene, some stimuli must be selected over others to prevent the visual system from becoming overloaded. Visual attention allows some stimuli or events to be processed instead of others. Most research on attentional selection has focused on spatial or location-based attention, in which the locations occupied by stimuli are selected for further processing. Recent research, however, has demonstrated the importance of objects in guiding attentional selection. Because of the long history of spatial attention research, theories of spatial attention are more mature than theories of other visual processes, such as object segregation and object attention. In the present chapter, we outline a biased competition account of object segregation and attention, following similar accounts that have been developed for visual search (Desimone & Duncan, 1995). In the biased competition account, there are two sources of visual information that allow an object to be processed over other objects: bottom-up information carried by the physical stimulus and top-down information based on an observeršs goals. We use the biased competition account to combine many diverse findings from both behavioral and neurobiological studies of object attention. |
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