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000007024 0247_ $$2pmc$$apmc:PMC2774395
000007024 0247_ $$2DOI$$a10.1093/cercor/bhp063
000007024 0247_ $$2WOS$$aWOS:000271813900013
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000007024 041__ $$aeng
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000007024 084__ $$2WoS$$aNeurosciences
000007024 1001_ $$0P:(DE-HGF)0$$aWu, S.S.$$b0
000007024 245__ $$aFunctional Heterogeneity of Inferior Parietal Cortex during Mathematical Cognition Assessed with Cytoarchitectonic Probability Maps
000007024 260__ $$aOxford$$bOxford Univ. Press$$c2009
000007024 300__ $$a2930 - 2945
000007024 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000007024 3367_ $$2BibTeX$$aARTICLE
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000007024 440_0 $$01171$$aCerebral Cortex$$v19$$x1047-3211$$y12
000007024 500__ $$aNational Institutes of Health (HD047520 and HD059205) and the National Science Foundation (BCS/DRL-0750340).
000007024 520__ $$aAlthough the inferior parietal cortex (IPC) has been consistently implicated in mathematical cognition, the functional roles of its subdivisions are poorly understood. We address this problem using probabilistic cytoarchitectonic maps of IPC subdivisions intraparietal sulcus (IPS), angular gyrus (AG), and supramarginal gyrus. We quantified IPC responses relative to task difficulty and individual differences in task proficiency during mental arithmetic (MA) tasks performed with Arabic (MA-A) and Roman (MA-R) numerals. The 2 tasks showed similar levels of activation in 3 distinct IPS areas, hIP1, hIP2, and hIP3, suggesting their obligatory role in MA. Both AG areas, PGa and PGp, were strongly deactivated in both tasks, with stronger deactivations in posterior area PGp. Compared with the more difficult MA-R task, the MA-A task showed greater responses in both AG areas, but this effect was driven by less deactivation in the MA-A task. AG deactivations showed prominent overlap with lateral parietal nodes of the default mode network, suggesting a nonspecific role in MA. In both tasks, greater bilateral AG deactivation was associated with poorer performance. Our findings suggest a close link between IPC structure and function and they provide new evidence for behaviorally salient functional heterogeneity within the IPC during mathematical cognition.
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000007024 588__ $$aDataset connected to Web of Science, Pubmed
000007024 65320 $$2Author$$aangular gyrus
000007024 65320 $$2Author$$aautomaticity
000007024 65320 $$2Author$$aintraparietal sulcus
000007024 65320 $$2Author$$amental arithmetic
000007024 65320 $$2Author$$asupramarginal gyrus
000007024 650_2 $$2MeSH$$aAdolescent
000007024 650_2 $$2MeSH$$aAdult
000007024 650_2 $$2MeSH$$aBrain Mapping
000007024 650_2 $$2MeSH$$aCognition: physiology
000007024 650_2 $$2MeSH$$aFemale
000007024 650_2 $$2MeSH$$aHumans
000007024 650_2 $$2MeSH$$aMale
000007024 650_2 $$2MeSH$$aMathematics
000007024 650_2 $$2MeSH$$aModels, Neurological
000007024 650_2 $$2MeSH$$aModels, Statistical
000007024 650_2 $$2MeSH$$aParietal Lobe: physiology
000007024 650_2 $$2MeSH$$aProblem Solving: physiology
000007024 650_2 $$2MeSH$$aYoung Adult
000007024 650_7 $$2WoSType$$aJ
000007024 7001_ $$0P:(DE-HGF)0$$aChang, T.T.$$b1
000007024 7001_ $$0P:(DE-HGF)0$$aMajid, A.$$b2
000007024 7001_ $$0P:(DE-Juel1)VDB53458$$aCaspers, S.$$b3$$uFZJ
000007024 7001_ $$0P:(DE-Juel1)131678$$aEickhoff, S. B.$$b4$$uFZJ
000007024 7001_ $$0P:(DE-HGF)0$$aMenon, V.$$b5
000007024 773__ $$0PERI:(DE-600)1483485-6$$a10.1093/cercor/bhp063$$gVol. 19, p. 2930 - 2945$$p2930 - 2945$$q19<2930 - 2945$$tCerebral cortex$$v19$$x1047-3211$$y2009
000007024 8567_ $$2Pubmed Central$$uhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC2774395
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000007024 9141_ $$y2009
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