編者按：本期science發(fā)表這篇文章（免費閱讀,，后面附鏈接），通過fMRI證實前額葉皮層對認知功能的控制作用,。值得一讀
The Architecture of Cognitive Control in the Human Prefrontal Cortex
Etienne Koechlin,1* Chrystèle Ody,1 Frédérique Kouneiher2
The prefrontal cortex (PFC) subserves cognitive control: the ability to coordinate thoughts or actions in relation with internal goals. Its functional architecture, however, remains poorly understood. Using brain imaging in humans, we showed that the lateral PFC is organized as a cascade of executive processes from premotor to anterior PFC regions that control behavior according to stimuli, the present perceptual context, and the temporal episode in which stimuli occur, respectively. The results support an unified modular model of cognitive control that describes the overall functional organization of the human lateral PFC and has basic methodological and theoretical implications.
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