Document Detail

Understanding vision in wholly empirical terms.
MedLine Citation:
PMID:  21383192     Owner:  NLM     Status:  MEDLINE    
This article considers visual perception, the nature of the information on which perceptions seem to be based, and the implications of a wholly empirical concept of perception and sensory processing for vision science. Evidence from studies of lightness, brightness, color, form, and motion all indicate that, because the visual system cannot access the physical world by means of retinal light patterns as such, what we see cannot and does not represent the actual properties of objects or images. The phenomenology of visual perceptions can be explained, however, in terms of empirical associations that link images whose meanings are inherently undetermined to their behavioral significance. Vision in these terms requires fundamentally different concepts of what we see, why, and how the visual system operates.
Dale Purves; William T Wojtach; R Beau Lotto
Publication Detail:
Type:  Journal Article; Review     Date:  2011-03-07
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  108 Suppl 3     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-14     Completed Date:  2011-11-03     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  15588-95     Citation Subset:  IM    
Center for Cognitive Neuroscience, Department of Neurobiology, Duke University, Duke-National University of Singapore Graduate Medical School, Singapore 169857.
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MeSH Terms
Models, Biological
Photic Stimulation
Vision, Ocular / physiology*
Visual Perception / physiology*

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

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