Integration of diverse information in working memory within the frontal lobe - PubMed (original) (raw)
Clinical Trial
doi: 10.1038/71156.
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- PMID: 10607400
- DOI: 10.1038/71156
Clinical Trial
Integration of diverse information in working memory within the frontal lobe
V Prabhakaran et al. Nat Neurosci. 2000 Jan.
Abstract
Ability to integrate diverse forms of information in current thought, or working memory, is essential for human reasoning and problem solving. We used functional imaging to identify brain regions preferentially involved in maintaining integrated versus unintegrated information in working memory. For equal amounts of verbal and spatial information, activation of prefrontal cortex was greater for maintaining integrated rather than unintegrated representations. Posterior brain regions showed the opposite pattern. These results demonstrate frontal-lobe specialization in maintaining working-memory representations that integrate verbal and spatial information. The role of prefrontal cortex in integrating multiple forms of information in working memory may underlie its unique contribution to high-level cognition that demands flexible mental representations.
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