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| Research article summary (published 29 Jun 2002): |
A reversal in the direction of detection asymmetry: effects of spatial density, spatial regularity, and retinal eccentricity.
Full Abstract
We analyzed detection asymmetry, using openand closed squares as target and contextelements. It was found that varying density, regularity, and target eccentricity not only can modulate the amount of asymmetry, but also can produce a reversal in the direction of the asymmetry. The results suggest that the different stimuli are processed with different grains of analysis,consisting of in some cases, single elements and their properties and, in other cases, larger units of the stimulus array and more globalproperties. A detection task that can utilize the properties that are available with a given grain of analysis would show an advantage over a task for which the given grain of analysis is not as favorable, resulting indetection asymmetry in one direction or another.
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Author information
Author/s: Meinecke, Cristina (C); Kimchi, Ruth (R); Christina, Grandegger (G);
Affiliation: Institut für Psychologie, Ludwig-Maximilians-Universität, Munich, Germany. meinecke@rzmail.uni-erlangen.de
Journal and publication information
Publication Type: Journal Article
Journal: Perception & psychophysics (Percept Psychophys), published in United States. (Language: eng)
Reference: 2002-Jul; vol 64 (issue 5) : pp 829-43
Dates: Created 2002/08/30; Completed 2002/09/25; Revised 2004/11/17;
PMID: 12201341, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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