This study explored intergroup preemptive behaviors and the emotional mechanism through 3 experiments. Experiment 1 designed the Group Preemptive Strike Game and found that in intergroup situations, individuals experienced intense fear and hope when they faced the potential threat from gaming counterparts, but their preemptive behaviors were not altered. Experiments 2 and 3 were designed to simulate real-life groups with characteristics such as punishment (Experiment 2) and leadership (Experiment 3), and found that people experienced fear and hope when they faced the potential threat and tended to attack preemptively. Fear and hope were mediators between the potential threats and preemptive behaviors, in which fear increased the preemptive behaviors and hope decreased the preemptive behaviors. This study improves the security and well–being of people by helping them find solutions to defensive aggression.

本研究通过3个实验探讨群际抢先行为及其情绪机制。实验一设计了群体先发制人攻击博弈，发现在群体间情境中，个体在面对博弈对手的潜在威胁时会产生强烈的恐惧和希望，但他们的先发制人行为没有改变。实验二和实验三旨在模拟现实生活中具有惩罚（实验二）和领导（实验三）等特征的群体，发现人们在面对潜在威胁时会体验到恐惧和希望，并倾向于先发制人。恐惧和希望在潜在威胁和先发制人行为之间起中介作用，恐惧增加先发制人行为，希望减少先发制人行为。