Biased figure-ground assignment affects conscious object recognition in spatial neglect

Eramudugolla, Ranmalee, Driver, Jon and Mattingley, Jason B. (2010) Biased figure-ground assignment affects conscious object recognition in spatial neglect. Cognitive Neuroscience, 1 3: 155-164. doi:10.1080/17588921003605376

Author Eramudugolla, Ranmalee
Driver, Jon
Mattingley, Jason B.
Title Biased figure-ground assignment affects conscious object recognition in spatial neglect
Journal name Cognitive Neuroscience   Check publisher's open access policy
ISSN 1758-8928
Publication date 2010-09-01
Year available 2010
Sub-type Article (original research)
DOI 10.1080/17588921003605376
Open Access Status Not yet assessed
Volume 1
Issue 3
Start page 155
End page 164
Total pages 10
Place of publication Hove, East Sussex, U.K
Publisher Psychology Press
Language eng
Subject 2805 Cognitive Neuroscience
Abstract Unilateral spatial neglect is a disorder of attention and spatial representation, in which early visual processes such as figure-ground segmentation have been assumed to be largely intact. There is evidence, however, that the spatial attention bias underlying neglect can bias the segmentation of a figural region from its background. Relatively few studies have explicitly examined the effect of spatial neglect on processing the figures that result from such scene segmentation. Here, we show that a neglect patient's bias in figure-ground segmentation directly influences his conscious recognition of these figures. By varying the relative salience of figural and background regions in static, two-dimensional displays, we show that competition between elements in such displays can modulate a neglect patient's ability to recognise parsed figures in a scene. The findings provide insight into the interaction between scene segmentation, explicit object recognition, and attention. © 2010 Psychology Press
Keyword Attention
Figure-ground segmentation
Object recognition
Parietal lobe
Spatial neglect
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
Queensland Brain Institute Publications
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Created: Sun, 13 Feb 2011, 10:04:46 EST