Document Detail

Locating object knowledge in the brain: comment on Bowers's (2009) attempt to revive the grandmother cell hypothesis.
MedLine Citation:
PMID:  20063976     Owner:  NLM     Status:  MEDLINE    
According to Bowers, the finding that there are neurons with highly selective responses to familiar stimuli supports theories positing localist representations over approaches positing the type of distributed representations typically found in parallel distributed processing (PDP) models. However, his conclusions derive from an overly narrow view of the range of possible distributed representations and of the role that PDP models can play in exploring their properties. Although it is true that current distributed theories face challenges in accounting for both neural and behavioral data, the proposed localist account--to the extent that it is articulated at all--runs into more fundamental difficulties. Central to these difficulties is the problem of specifying the set of entities a localist unit represents.
David C Plaut; James L McClelland
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Publication Detail:
Type:  Comment; Journal Article; Review    
Journal Detail:
Title:  Psychological review     Volume:  117     ISSN:  1939-1471     ISO Abbreviation:  Psychol Rev     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-01-12     Completed Date:  2010-04-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376476     Medline TA:  Psychol Rev     Country:  United States    
Other Details:
Languages:  eng     Pagination:  284-8     Citation Subset:  IM    
Department of Psychology, Carnegie Mellon University, 5000Forbes Avenue, Pittsburgh, PA 15213-3890, USA.
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MeSH Terms
Brain / anatomy & histology*
Cognition / physiology*
Neural Networks (Computer)*
Psychological Theory*
Comment On:
Psychol Rev. 2009 Jan;116(1):220-51   [PMID:  19159155 ]
Comment In:
Psychol Rev. 2010 Jan;117(1):300-6; discussion 289-90, 297-9, 306-8   [PMID:  20063980 ]

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