School of Management, Zhejiang University , Hangzhou , China.
Neuromanagement Lab, Zhejiang University , Hangzhou , China.
Soc Neurosci. 2019 Dec;14(6):635-648. doi: 10.1080/17470919.2019.1566171. Epub 2019 Jan 22.
We used dual electroencephalography (EEG) to measure brain activity simultaneously in pairs of trustors and trustees playing a 15-round trust game framed as a "trust game" versus a "power game". Four major findings resulted: first, earnings in each round were higher in the trust than in the power game. Second, in the trust game, reaction time for strategic deliberations was significantly longer for the trustee than the trustor. In the power game, however, the trustee took longer to think about how much money to repay, whereas the trustor took longer to think about how much money to invest. Third, prediction accuracy for the amount exchanged was higher in the trust game than in the power game. Fourth, interbrain synchronicity gauged with the phase-locking value of alpha bands in the brain - especially the frontal and central regions - was higher in the power game than in the trust game. We infer that this last finding reflects elevated mutual strategic deliberation in the power game. These behavioral and neuroscience-based findings give a better understanding of the framing effects of a trust game on the strategic deliberations of both trustor and trustee seeking to attain wealth.
我们使用双脑电描记术（EEG）同时测量了在玩 15 轮信任游戏的信任者和被信任者对的大脑活动，该游戏框架为“信任游戏”和“权力游戏”。得出了四个主要发现：第一，在信任游戏中，每轮的收益高于权力游戏。第二，在信任游戏中，受托人的策略性思考时间明显长于信任者。然而，在权力游戏中，受托人需要更长的时间来考虑要偿还多少钱，而信任者则需要更长的时间来考虑要投资多少钱。第三，对于交换金额的预测准确性在信任游戏中高于权力游戏。第四，用大脑中的α波段的锁相值（phase-locking value）衡量的脑间同步性，在权力游戏中高于信任游戏。我们推断，这最后一个发现反映了在权力游戏中提升的相互策略性思考。这些基于行为和神经科学的发现更好地理解了信任游戏对寻求财富的信任者和被信任者的策略性思考的框架效应。
