期刊
HUMAN BRAIN MAPPING
卷 30, 期 1, 页码 299-311出版社
WILEY
DOI: 10.1002/hbm.20501
关键词
frontal lobe; prefrontal cortex; cognitive control; magnetic resonance imaging
资金
- NIBIB NIH HHS [5 P01EB001955] Funding Source: Medline
- NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING [P01EB001955] Funding Source: NIH RePORTER
The sulcal morphology of the human frontal lobe is highly variable. Although the structural images usually acquired in functional magnetic resonance imaging studies provide information about this interindividual variability, this information is only rarely used to relate structure and function. Here, we investigated the spatial relationship between posterior frontolateral activations in a task-switching paradigm and the junction of the inferior frontal sulcus and the inferior precentral sulcus (inferior frontal junction, IFJ) on an individual-subject basis. Results show that, although variable in terms of stereotaxic coordinates, the posterior frontolateral activations observed in task-switching are consistently and reliably located at the TFJ in the brains of individual participants. The IFJ shares such consistent localization with other nonprimary areas as motion-sensitive area V5/MT and the frontal eye field. Building on tension-based models of morphogenesis, this structure-function correspondence might indicate that the cytoarchitectonic area underlying activations of the IFJ develops at early stages of cortical folding. Hum Brain Mapp 30:299-311, 2009. (C) 2007 Wiley-Liss, Inc.
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