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  Lateral inferotemporal cortex maintains conceptual-semantic representations in verbal working memory

Fiebach, C. J., Friederici, A. D., Smith, E. E., & Swinney, D. (2007). Lateral inferotemporal cortex maintains conceptual-semantic representations in verbal working memory. Journal of Cognitive Neuroscience, 19(12), 2035-2049.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-C2CC-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-CEF3-4
Genre: Journal Article

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 Creators:
Fiebach, Christian J.1, Author              
Friederici, Angela D.1, Author              
Smith, E. E., Author
Swinney, David, Author
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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 Abstract: Verbal working memory, that is, the temporary maintenance of linguistic information in an activated state, is typically assumed to rely on phonological representations. Recent evidence from behavioral, neuropsychological, and electrophysiological studies, however, suggests that conceptual-semantic representations may also be maintained in an activated state. We developed a new semantic working memory task that involves the maintenance of a novel conceptual combination. Functional magnetic resonance imaging data acquired during the maintenance of conceptual combinations, relative to an item recognition task without the possibility of conceptual combination, demonstrate increased activation in the posterior left middle and inferior temporal gyri (known to be involved in conceptual representations) and left inferior frontal gyrus (known to be involved in semantic control processes). We suggest that this temporo-frontal system supports maintenance of conceptual information in working memory, with the frontal regions controlling the sustained activation of heteromodal conceptual representations in the inferior temporal cortex.

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Language(s): eng - English
 Dates: 2007-11-132007
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 345811
Other: P7878
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Title: Journal of Cognitive Neuroscience
Source Genre: Journal
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Pages: - Volume / Issue: 19 (12) Sequence Number: - Start / End Page: 2035 - 2049 Identifier: DOI: 10.1162/jocn.2007.19.12.2035