Journal article
Spatial Attention Does Not Require Preattentive Grouping
Neuropsychology, Vol.11(1), pp.30-43
01/1997
DOI: 10.1037/0894-4105.11.1.30
PMID: 9055267
Abstract
Does spatial attention follow a full preattentive analysis of the visual field, or can attention select from ungrouped regions of the visual field? We addressed this question by testing an apperceptive agnosic patient, J. W., in tasks involving both spatial selection and preattentive grouping. Results suggest that J. W. had intact spatial attention: He was faster to detect targets appearing at cued locations relative to targets appearing at uncued locations. However, his preattentive processes were severely disrupted. Gestalt grouping and symmetry perception, both thought to involve preattentive processes, were impaired in J. W. Also, he could not use gestalt grouping cues to guide spatial attention. These results suggest that spatial attention is not completely dependent on preattentive grouping processes. We argue that preattentive grouping processes and spatial attention may mutually constrain one another in guiding the attentional selection of visual stimuli but that these 2 processes are isolated from one another.
Details
- Title: Subtitle
- Spatial Attention Does Not Require Preattentive Grouping
- Creators
- Shaun P Vecera - Department of Psychology, University of UtahMarlene Behrmann - Department of Psychology, Carnegie Mellon University
- Resource Type
- Journal article
- Publication Details
- Neuropsychology, Vol.11(1), pp.30-43
- Publisher
- American Psychological Association
- DOI
- 10.1037/0894-4105.11.1.30
- PMID
- 9055267
- ISSN
- 0894-4105
- eISSN
- 1931-1559
- Language
- English
- Date published
- 01/1997
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984066140202771
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