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dc.contributor.authorNestor, Paul G.en_US
dc.contributor.authorNakamura, Motoakien_US
dc.contributor.authorNiznikiewicz, Margareten_US
dc.contributor.authorLevitt, James J.en_US
dc.contributor.authorNewell, Dominick T.en_US
dc.contributor.authorShenton, Martha E.en_US
dc.contributor.authorMcCarley, Robert W.en_US
dc.date.accessioned2015-07-13T18:47:27Z
dc.date.issued2015en_US
dc.identifier.citationNestor, Paul G., Motoaki Nakamura, Margaret Niznikiewicz, James J. Levitt, Dominick T. Newell, Martha E. Shenton, and Robert W. McCarley. 2015. “Attentional Control and Intelligence: MRI Orbital Frontal Gray Matter and Neuropsychological Correlates.” Behavioural Neurology 2015 (1): 354186. doi:10.1155/2015/354186. http://dx.doi.org/10.1155/2015/354186.en
dc.identifier.issn0953-4180en
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:17295714
dc.description.abstractAttentional control is a key function of working memory that is hypothesized to play an important role in psychometric intelligence. To test the neuropsychological underpinnings of this hypothesis, we examined full-scale IQ, as measured by the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III), and attentional control, as measured by Trails B response time and Wisconsin Card Sorting (WCS) test perseverative errors in 78 healthy participants, 25 of whom also had available magnetic resonance imaging (MRI) gray matter volume studies of the orbital frontal cortex (OFC) parcellated into three regions: gyrus rectus, middle orbital gyrus, and lateral orbital gyrus. Hierarchical regression indicated that Trails B response time specifically explained 15.13% to 19.18% of the variation in IQ and WCS perseverative errors accounted for an additional 8.12% to 11.29% of the variance. Full-scale IQ correlated very strongly with right middle orbital gyrus gray matter volume (r = 0.610, p = 0.002), as did Trails B response time with left middle orbital gyrus gray matter volume (r = −0.608, p = 0.003). Trails B response time and right middle orbital gyrus gray matter volume jointly accounted for approximately 32.95% to 54.82% of the variance in IQ scores. These results provided evidence of the unique contributions of attentional control and OFC gray matter to intelligence.en
dc.language.isoen_USen
dc.publisherHindawi Publishing Corporationen
dc.relation.isversionofdoi:10.1155/2015/354186en
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC4460198/pdf/en
dash.licenseLAAen_US
dc.titleAttentional Control and Intelligence: MRI Orbital Frontal Gray Matter and Neuropsychological Correlatesen
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden
dc.relation.journalBehavioural Neurologyen
dash.depositing.authorNestor, Paul G.en_US
dc.date.available2015-07-13T18:47:27Z
dc.identifier.doi10.1155/2015/354186*
dash.contributor.affiliatedLevitt, James
dash.contributor.affiliatedNestor, Paul
dash.contributor.affiliatedMcCarley, Robert William
dash.contributor.affiliatedNiznikiewicz, Margaret
dash.contributor.affiliatedShenton, Martha
dc.identifier.orcid0000-0001-5705-7495
dc.identifier.orcid0000-0003-3191-2005


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