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神经科学
神经心理学
心理学
扣带皮质
神经影像学
认知
认知心理学
中枢神经系统
作者
Charles Stewart E. Weston
标识
DOI:10.1016/j.neubiorev.2011.04.014
摘要
The anterior cingulate cortex (ACC) is a ubiquitously active brain region, doubtless reflecting a multiplicity of functions. Improved knowledge of such functions should progress understanding of disorders with established ACC involvement, including depression, apathy, and addiction. This theoretical paper proposes a hypothesis concerning an original and important ACC function, namely that the ACC operates as part of distributed networks to which it contributes the representation of requirements. Such requirements are further suggested to proactively coordinate and organize processing in effector regions to achieve consummation, thereby implementing an optimal strategy. The ACC (predominantly Brodmann's areas 24 and 32) is activated during states characterized by active requirements such as homeostatic perturbations, pain, desire, addiction, and cognition, and this is evidenced by systematic reviews of neuroimaging studies, and by neuropsychological findings. Further, ACC activity commences early in processing, and proactively influences processing in effector regions, further supporting the hypothesis. Thus, this hypothesis accounts for some ACC findings that are otherwise unexplained, and proposes novel testable predictions offering new insights into ACC functional organization.
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