The Neural Basis Of Interpersonal Interaction: An Erp Study

Interpersonal interaction refers to the social activities, or for other people's actions and reactions. It is a very complex behavior, and is an indispensable part of our daily life. Competition and cooperation are of the two basic interpersonal interactions, reflected in every aspect of our everyday lives, such as economic activity, interpersonal and work study, etc. Along with society's development, cooperative and competitive and conflict, these problems are never penetrates into all aspects of people's lives like this. Cooperation is the basic conditions of human survival and the development of society. From the history we know that, cooperation is the necessary way for human survival. In today's social life, whether want to succeed, or want to obtain happiness, all need to realize the cooperation between through. In recent years, more and more researchers through a variety of brain imaging techniques to ascertain the cognitive basis of interpersonal interaction, formed the cognitive neuroscience and social psychology cross subject.Based on the literature review of former studies, this dissertation summarizes previous research conclusion of consistency and difference, and use the ERP recorded the EEG data from 64 scalp electrodes of ERP system (Neuroscan Inc.). Through employing the normal undergraduates as participants, the present dissertation analyzed the behavioral performance (reaction times), ERP components and topography off-line, trying to check the validation of the existing research results, and reveal the interpersonal interaction process time from the aspect of cooperation.As with interactive games to explore "the social brain", this study use the real situation of social games, "the ultimatum game" (UG). This game is a special kind of task by way of cooperation assess. In the ultimatum, the two were tried points a certain amount of money. One (the proposer) propose the money, another (the responder) can accept or reject the proposal. If accepted, the principle of distribution according to offer, if the responder reject, the two participants will get nothing. In this study, the subjects are always being the responders. We are trying to through comparing the cooperative and non-cooperative two conditions for the ERP waveformWe found that select cooperation induce a very similar ERP waveform to non-cooperate., choose of the amplitude of cooperation is significantly higher than choice non-cooperate in the 360ms. And the amplitude in the left hemisphere is higher than the right hemisphere volatility.