潜在威胁信息加工的神经机制

Neural Processing Mechanism of Potential Threat

潜在威胁加工对人类的生存具有重要的意义。明晰潜在威胁加工过程是有效应对危险事件的前提。潜在威胁加工主要涉及以杏仁核为主要节点的检测过程,包括皮层下的快速通道和皮层通道的精细加工;以及内侧前额叶皮层、前扣带皮层等结构对潜在威胁性信息的评估过程。潜在威胁加工不单只是两个过程的叠加,还需要其他脑区的共同协作来正确应对潜在威胁情景。这些协作整合过程仍需要进一步的研究来阐明。

The processing of potential threat is important to human survival. To illustrate such a process helps preventing dangerous events effectively. The neural processing mechanism of potential threat includes potential threat detection and appraisal. Potential threat detection relates to two neural channels: the subcortical channel and the cortical channel, in which the amygdala served as the corehub. Potential threat appraisal involves the activation of the medial prefrontal cortex, anterior cingulate cortex and some other neural structures. To correctly cope with dangerous situations, potential threat processing needs not only a superposition of such two processes, but including the cooperation with other brain regions. However, these mechanisms still need further research to clarify.