Document Detail


The role of the locus coeruleus in mediating the attentional blink: a neurocomputational theory.
MedLine Citation:
PMID:  16131265     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The attentional blink refers to the transient impairment in perceiving the 2nd of 2 targets presented in close temporal proximity. In this article, the authors propose a neurobiological mechanism for this effect. The authors extend a recently developed computational model of the potentiating influence of the locus coeruleus-norepinephrine system on information processing and hypothesize that a refractoriness in the function of this system may account for the attentional blink. The model accurately simulates the time course of the attentional blink, including Lag 1 sparing. The theory also offers an account of the close relationship of the attentional blink to the electrophysiological P3 component. The authors report results from two behavioral experiments that support a critical prediction of their theory regarding the time course of Lag 1 sparing. Finally, the relationship between the authors' neurocomputational theory and existing cognitive theories of the attentional blink is discussed.
Authors:
Sander Nieuwenhuis; Mark S Gilzenrat; Benjamin D Holmes; Jonathan D Cohen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of experimental psychology. General     Volume:  134     ISSN:  0096-3445     ISO Abbreviation:  J Exp Psychol Gen     Publication Date:  2005 Aug 
Date Detail:
Created Date:  2005-08-31     Completed Date:  2006-01-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7502587     Medline TA:  J Exp Psychol Gen     Country:  United States    
Other Details:
Languages:  eng     Pagination:  291-307     Citation Subset:  IM    
Copyright Information:
((c) 2005 APA, all rights reserved).
Affiliation:
Department of Psychology, Princeton University, NJ, USA. stn20@dds.nl
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Animals
Attention / physiology*
Decision Making / physiology
Electroencephalography
Event-Related Potentials, P300 / physiology
Female
Humans
Locus Coeruleus / physiology*
Male
Neural Inhibition / physiology*
Neural Networks (Computer)*
Pattern Recognition, Visual / physiology
Reaction Time / physiology
Refractory Period, Electrophysiological / physiology*

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


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