Document Detail

Global interference: the effect of exposure duration that is substituted for spatial frequency.
MedLine Citation:
PMID:  11954695     Owner:  NLM     Status:  MEDLINE    
In this study, participants were required to identify hierarchically structured patterns that appeared at either global or local level. Paquet and Merikle (1984 Canadian Journal of Psychology 381 45-53) showed that global interference is affected by exposure duration in the processing of a hierarchical structure. They showed that only global-to-local interference occurred at short exposure durations. In contrast, global-to-local as well as local-to-global interference was observed at long exposure durations. They suggested that the effect of exposure duration with global interference depends on the high-spatial-frequency versus low-spatial-frequency channel. In the present study, exposure duration (short or long) was varied randomly from trial to trial (experiment 1), or held constant (experiment 2). In experiment 1, global-to-local interference occurred at both short and long exposure durations, even though the same physical properties existed as in experiment 2. In experiment 2, both global-to-local and local-to-global interference occurred at only long exposure durations, in line with the results reported by Paquet and Merikle. This suggests that the effect of exposure duration on global interference is explained not only by spatial-frequency channels, but also by attentional shift.
Yuko Hibi; Yuji Takeda; Akihiro Yagi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Perception     Volume:  31     ISSN:  0301-0066     ISO Abbreviation:  Perception     Publication Date:  2002  
Date Detail:
Created Date:  2002-04-16     Completed Date:  2002-04-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372307     Medline TA:  Perception     Country:  England    
Other Details:
Languages:  eng     Pagination:  341-8     Citation Subset:  IM    
Department of Psychology, Kwansei Gakuin University, Hyogo, Japan.
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MeSH Terms
Computer Graphics
Pattern Recognition, Visual / physiology*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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