期刊
INTELLIGENCE
卷 37, 期 2, 页码 124-135出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.intell.2008.07.007
关键词
Neuroanatomy; General intelligence; Fluid intelligence; Crystallized intelligence; Spatial intelligence; Voxel-based Morphometry; Frontal lobes; Parietal lobes; MRI
The parieto-frontal integration theory (P-FIT) nominates several areas distributed throughout the brain as relevant for intelligence. This theory was derived from previously published studies using a variety of both imaging methods and tests of cognitive ability. Here we test this theory in a new sample of young healthy adults (N = 100) using a psychometric battery tapping fluid, crystallized, and spatial intelligence factors. High resolution structural MRI scans (3T) were obtained and analyzed with Voxel-based Morphometry (VBM). The main findings are consistent with the P-FIT supporting the view that general intelligence (g) involves multiple cortical areas throughout the brain. Key regions include the dorsolateral prefrontal cortex, Broca's and Wernicke's areas, the somato-sensory association cortex, and the visual association cortex. Further, estimates of crystallized and spatial intelligence with g statistically removed, still share several brain areas with general intelligence, but also show some degree of uniqueness. (C) 2008 Elsevier Inc. All rights reserved.
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