Document Detail

Perceptual enhancement of contrast by attention.
MedLine Citation:
PMID:  15450502     Owner:  NLM     Status:  MEDLINE    
Allocating spatial attention to a visual stimulus or increasing stimulus contrast both enhance neuronal responses. In a recent study Carrasco et al. demonstrated that attention itself changes perceived contrast. Using an elegant experimental manipulation, they showed that the contrast of an attended stimulus was perceived to be higher than when the same stimulus was unattended. This provides evidence that the enhancement of stimulus salience observed in electrophysiological studies creates an enhanced perceptual representation of attended stimuli.
Stefan Treue
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Trends in cognitive sciences     Volume:  8     ISSN:  1364-6613     ISO Abbreviation:  Trends Cogn. Sci. (Regul. Ed.)     Publication Date:  2004 Oct 
Date Detail:
Created Date:  2004-11-11     Completed Date:  2004-12-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9708669     Medline TA:  Trends Cogn Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  435-7     Citation Subset:  IM    
German Primate Center, Kellnerweg 4, 37077 Goettingen, Germany.
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MeSH Terms
Attention / physiology*
Brain / physiology
Choice Behavior
Fixation, Ocular / physiology
Neurons / physiology
Visual Perception / physiology*

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