Document Detail


Sensory processing: who's in (top-down) control?
MedLine Citation:
PMID:  23909769     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A major aim of Jon Driver's research was to identify principles by which the brain selects behaviorally relevant stimuli or thoughts for in-depth processing. His insights have shaped neurobiological models of selective attention that highlight top-down modulations of sensory cortex as a neural substrate of adaptive behavioral control. In this paper, I review research on the characteristics and neural origins of such top-down modulations. The studies reviewed show that neural processing in sensory cortical areas can be biased toward behaviorally relevant stimuli and thoughts by feedback projections from frontal and parietal brain areas. Such modulatory influences are similarly present for judgments about external sensory information (during attention) or internal representations (during imagery and short-term memory), potentially reflecting common neural mechanisms that enhance sensory processing of relevant neural signals. How such top-down control processes may ultimately be guided by motivational brain systems is a topic of current debate, for which Jon Driver's work will continue to provide important inspiration.
Authors:
Christian C Ruff
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2013-08-02
Journal Detail:
Title:  Annals of the New York Academy of Sciences     Volume:  1296     ISSN:  1749-6632     ISO Abbreviation:  Ann. N. Y. Acad. Sci.     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-09-02     Completed Date:  2013-11-18     Revised Date:  2014-01-02    
Medline Journal Info:
Nlm Unique ID:  7506858     Medline TA:  Ann N Y Acad Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  88-107     Citation Subset:  IM    
Copyright Information:
© 2013 New York Academy of Sciences.
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MeSH Terms
Descriptor/Qualifier:
Attention / physiology
Cerebral Cortex / physiology
Humans
Imagery (Psychotherapy)
Memory, Short-Term / physiology
Neuroimaging
Sensation / physiology*

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