| The effect of attentional spread on spatial resolution. | |
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MedLine Citation:
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PMID: 9205711 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of attentional spread were studied by having subjects detect a luminance increment along a row of evenly spaced dots. The increment could occur for the central, fixated dot (Narrow Attention) or for either the fixation dot or one of the four dots to its left or right (Broad Attention). Narrow Attention enhanced the detection of luminance increments for the fixated dot, and also enhanced spatial resolution near the fixation dot for judgments of vernier alignment and separation. This indicated that the sensitivity of small spatial filters in the fovea was increased more by narrowly focused than broadly spread attention. Effects of attentional spread on spatial resolution were not obtained for judgments of the separation between two peripherally located targets, perhaps because of their dependence on eccentricity (position) rather than separation. |
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Authors:
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G W Balz; H S Hock |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Vision research Volume: 37 ISSN: 0042-6989 ISO Abbreviation: Vision Res. Publication Date: 1997 Jun |
Date Detail:
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Created Date: 1997-07-16 Completed Date: 1997-07-16 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0417402 Medline TA: Vision Res Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 1499-510 Citation Subset: IM; S |
Affiliation:
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Department of Psychology, Florida Atlantic University, Boca Raton 33431, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Attention* Differential Threshold Fixation, Ocular Humans Lighting Male Psychometrics Space Perception / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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