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ISSN : 1226-9654

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Vol.6 No.1

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The Effects of Stimulus Types and Category Structures on Categorization and Recognition

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
1994, v.6 no.1, pp.77-93
Jeung-Ryeul Cho (Department of Psychology Kyungnam University)
Cho, J. (1994). The Effects of Stimulus Types and Category Structures on Categorization and Recognition. The Korean Journal of Cognitive and Biological Psychology, 6(1), 77-93.

Abstract

The relation between recognition and categorization was investigated in two experiments which used independently determined features but different category structures. In Experiment 1, verbal letter strings were categorized better than visual bar charts and analytic strategies were preferred by subjects. Bar charts were categorized better than letter strings in Experiment 2 which enhanced holistic strategies. But in both experiments recognition was not affected by stimulus types. Block effects suggested that recognition memories decreased across blocks of practice, whereas categorization increased across blocks. Thus stimulus types and blocks of practice had separable effects on categorization and recognition, implying that categorization was based on abstract rules. The two experiments were different in the effects of specific exemplar memories on categorization: Exemplar memories had no effect in Experiment 1, but they had significant effects in Experiment 2. The results suggest that recognition is based on memories for specific exemplars, while categorization depends on abstract rules but is also influenced by exemplar memories in some conditions.

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The Korean Journal of Cognitive and Biological Psychology

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