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

Lateral inferotemporal cortex maintains conceptual-semantic representations in verbal working memory. Research Abstract Details 

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Lateral inferotemporal cortex maintains conceptual-semantic representations in verbal working memory. Abstract Text:

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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Lateral inferotemporal cortex maintains conceptual-semantic representations in verbal working memory. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of cognitive neuroscience

VOLUME: 19

Page Numbers: 2035-49

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ISSN: 0898-929X

DAY: 29

MONTH: Dec

YEAR: 2007

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

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LANGUAGE: eng

NlmUniqueID: 8910747

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AFFILIATION: 1Ruprecht-Karls-University Heidelberg, Germany, 2Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, 3Columbia University, New York, 4University of California, San Diego.

Country: United States

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MEDLINETA: J Cogn Neurosci

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