| Asymmetry in object substitution masking occurs relative to the direction of spatial attention shift. | |
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MedLine Citation:
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PMID: 20121293 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A sparse mask that persists beyond the duration of a target can reduce its visibility, a phenomenon called object substitution masking. Y. Jiang and M. M. Chun (2001a) found an asymmetric pattern of substitution masking such that a mask on the peripheral side of the target caused stronger substitution masking than on the central side. Assuming spatial attention was focused toward the target, the peripheral and central masks were located in the same and opposite direction of an attentional path with reference to the target in their study. We hypothesized that this asymmetric mask configuration relative to the attentional shift contributes to asymmetric substitution masking. To test this hypothesis, we conducted four experiments among which the presence or absence of the center-periphery relationship and the presence or absence of the asymmetric mask configuration were manipulated independently and orthogonally. The results suggest that asymmetric substitution masking occurs relative to the direction of spatial attention irrespective of the central-peripheral relation. We propose that the asymmetry in substitution masking might be explained by attentional momentum associated with orienting toward the target. |
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Authors:
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Nobuyuki Hirose; Naoyuki Osaka |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of experimental psychology. Human perception and performance Volume: 36 ISSN: 1939-1277 ISO Abbreviation: J Exp Psychol Hum Percept Perform Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2010-02-03 Completed Date: 2010-04-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7502589 Medline TA: J Exp Psychol Hum Percept Perform Country: United States |
Other Details:
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Languages: eng Pagination: 25-37 Citation Subset: IM |
Affiliation:
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Department of Psychology, Graduate School of Letters, Kyoto University, Yoshida-Honmachi, Sakyo, Kyoto 606-8501, Japan. nobuyuki.hirose@gmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Attention* Humans Perceptual Masking Reaction Time Space Perception / physiology* Visual Fields Visual Perception |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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