关键词: 决策对象, 公平评价, 事件相关电位

Abstract:

By using event related potential (ERPs) technique, this paper discusses how decision objects and distribution methods affect the time process of individual fairness evaluation in cooperative tasks. The experiment adopts the within-subject design of 2 (decision objects: oneself, the group) × 2 (distribution methods: contribution distribution, equal distribution). Making decisions for themselves induces larger P2 and small FRN than for groups. When individuals made decisions for themselves, the P3 induced by contribution distribution was significantly smaller than that induced by equal distribution, while made decisions for their own groups, there was no significant difference between two kinds of distribution methods. The results show that the decision-making object is given priority to be processed and considered in the early stage, while the fair evaluation in the late stage is jointly regulated by the decision-making object and the distribution methods.

Key words: cooperation, decision objects, fairness evaluation, ERPs