Panic plays a critical role in the management of emergencies, but its mechanism regarding the disaster stimuli is not yet clear. This study aims to construct a Clarity-Intensity model for evacuation panic through a VR experiment. 15 disaster stimuli are designed to build a Clarity-Intensity plane, and are applied in the virtual environment. The brain activation levels are measured with an fNIRS device with regard to every stimulus, and this metric is used in this study as a representation of panic. The brain activations are quadratically regressed on the Clarity-Intensity plane, and it is discovered 1) that the brain is more activated with higher Clarity within lower ranges of Intensity, and the opposite is applied within higher ranges of Intensity, while the activation is elevated with higher Intensity within all ranges of Clarity, and 2) that the left half is generally not less activated than the right half, and the difference peaks within medium ranges of Intensity and a high Clarity.

恐慌在突发事件管理中发挥着至关重要的作用，但其灾害刺激机制尚不清楚。本研究旨在通过VR实验构建疏散恐慌的清晰度-强度模型。15种灾难刺激旨在构建清晰度-强度平面，并应用于虚拟环境中。使用 fNIRS 设备测量每次刺激的大脑激活水平，该指标在本研究中用作恐慌的表示。大脑激活在清晰度-强度平面上进行二次回归，发现1）在较低的强度范围内，清晰度越高，大脑越被激活，而在较高的强度范围内则相反，而激活则升高在所有清晰度范围内具有较高的强度，并且2)左半部分通常不低于右半部分的激活，并且差异在中等强度范围和高清晰度范围内达到峰值。