Document Detail

The role of elaboration in the persistence of awareness for degraded objects.
MedLine Citation:
PMID:  17239616     Owner:  NLM     Status:  MEDLINE    
When a fragmented line-drawing of an object moves relative to a background of randomly oriented lines, the previously hidden object can be segregated from the background and consequently enters awareness. In this shape-from-motion paradigm, the percept of the object briefly persists after the motion stops, demonstrating the maintenance of a bound percept in awareness. This study investigated how the manipulation of object features that are crucial to recognition influences both the binding process and the maintenance of objects in awareness. Overall, we found that objects that took longer to recognize (i.e., objects missing their vertices) were nonetheless maintained in awareness for longer. We argue that this effect is mediated by additional elaborative processing that is required to bind these less recognizable forms, which generates stronger and more robust representations. These representations are then more easily maintained in awareness, suggesting an important role of elaborative mechanisms for conscious representations.
Stephen M Emrich; Justin D N Ruppel; Susanne Ferber
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-01-18
Journal Detail:
Title:  Consciousness and cognition     Volume:  17     ISSN:  1090-2376     ISO Abbreviation:  Conscious Cogn     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2008-03-24     Completed Date:  2008-04-16     Revised Date:  2008-05-16    
Medline Journal Info:
Nlm Unique ID:  9303140     Medline TA:  Conscious Cogn     Country:  United States    
Other Details:
Languages:  eng     Pagination:  319-29     Citation Subset:  IM    
Department of Psychology, University of Toronto, 100 St. George Street, Toronto, Ont., Canada M5S 3G3.
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MeSH Terms
Form Perception / physiology*
Models, Psychological
Motion Perception / physiology
Reaction Time
Recognition (Psychology) / physiology*

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