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Document Type

Research

Keywords

Eidetic Imagery, Iconic Memory, Visual Masking, Visual Recognition

Abstract

Pairs of random dot patterns in which the patterns of each pair formed bigrams when superimposed were used to investigate the hypothesis that the temporal integration of visual patterns reported by Eriksen could he extended toward the longer time scale used in studies of eidetic imagery. An integration theory suggests that when the dot pattern stimuli are temporally separated, the neural trace arising from the first pattern must be combined with the second pattern for a verbal recognition to occur. However, the unexpected results of the present study indicated that a first dot pattern of 1, 3 or 5.4 sec. duration was not integrated with a complementary second dot pattern of 2 sec. unless the pair of patterns were overlapped in time. The duration of the overlapped exposure times required for recognition was five to eight times longer than the time required for recognition with simultaneous onset and offset of the same dot patterns. Suggestions as to the source of the serious interfering or masking effect in the integration process are discussed.

Publication Date

September 1974

Journal Title

Proceedings of the Iowa Academy of Science

Volume

81

Issue

3

First Page

111

Last Page

115

Copyright

© Copyright 1974 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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