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PERCEPTUAL SEGREGATION AND THE CATEGORY EFFECT

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Date Issued:
1980
Summary:
A category effect of alphanumeric characters in a visual search paradigm was examined to see whether the effect could be accounted for by the number of memory comparisons or by an early stage of perceptual processing. In Experiments 1 and 2, subjects searched for targets in either a within-category or between-category condition. The two experiments differed by the point in the trials where "catch trials" were presented. Experiment 3 used new configurations based on Gestalt principles which had been shown to influence target detection times at an early level of perceptual processing. The results of Experiments 1 and 2 favored a perceptual explanation mediating the effect. In Experiment 3, the critical interaction of category and Gestalt factors which would have demonstrated a competition in perceptually parsing the display fell short of significance.
Title: PERCEPTUAL SEGREGATION AND THE CATEGORY EFFECT.
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Name(s): ROSENTHAL, ALAN.
Florida Atlantic University, Degree grantor
Hock, Howard S., Thesis advisor
Charles E. Schmidt College of Science
Department of Psychology
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Issuance: monographic
Date Issued: 1980
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 82 p.
Language(s): English
Summary: A category effect of alphanumeric characters in a visual search paradigm was examined to see whether the effect could be accounted for by the number of memory comparisons or by an early stage of perceptual processing. In Experiments 1 and 2, subjects searched for targets in either a within-category or between-category condition. The two experiments differed by the point in the trials where "catch trials" were presented. Experiment 3 used new configurations based on Gestalt principles which had been shown to influence target detection times at an early level of perceptual processing. The results of Experiments 1 and 2 favored a perceptual explanation mediating the effect. In Experiment 3, the critical interaction of category and Gestalt factors which would have demonstrated a competition in perceptually parsing the display fell short of significance.
Identifier: 14036 (digitool), FADT14036 (IID), fau:10853 (fedora)
Collection: FAU Electronic Theses and Dissertations Collection
Note(s): Charles E. Schmidt College of Science
Thesis (M.A.)--Florida Atlantic University, 1980.
Subject(s): Human information processing
Perception
Held by: Florida Atlantic University Libraries
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/14036
Sublocation: Digital Library
Use and Reproduction: Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.