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    Facilitation of performance on a picture fragment completion test: Data-driven potentiation in perception

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    Author
    Merikle, Elizabeth Paige, 1965-
    Issue Date
    1991
    Keywords
    Psychology, Experimental.
    Advisor
    Peterson, Mary A.
    
    Metadata
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    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    A technique commonly used to study the structure of memory entails preceding a task by a brief masked presentation of a potentially relevant stimulus. In two experiments, I examined the type of facilitation obtained on a picture fragment completion task by prior presentation of either the name of the completed object, a complete picture of the object, or the fragment itself. In Experiment 1a significantly more ambiguous picture fragments (i.e. fragments supporting a number of interpretations) were identified after exposure to pictures than to picture names or picture fragments. Experiment 1b verified that the information in the masked primes was not available to conscious awareness. These results suggest that under limited encoding conditions only bottom-up activation provided by prior presentation of the fragments aids shape recognition under degraded conditions. Implications for the structures and processes involved in shape recognition are discussed.
    Type
    text
    Thesis-Reproduction (electronic)
    Degree Name
    M.A.
    Degree Level
    masters
    Degree Program
    Graduate College
    Psychology
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

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