The Influences Of The Risky Preference On Risky Decision-making: Based On The Event-related Potentials Study

Human beings always get a lot of feedback information to evaluate their actions and guide their future decision-making actions. life. Recently, many researchers have utilized event-related potentials and simple gambling task to investigate the processing of outcome evaluation. They suggested that the FRN,P200 and P300 were the most important components related to the feedback processing. Moreover, their suggested that the FRN related to the value of the feedback outcomes, the P300 related to the magnitude of the feedback outcome, and the P200 related to the risky of decision-making.We know that our risky preference have important influence in risky decision-making, so are there some differences with their brain potentials when people having different risky preference make risky decision? responsibility. So, the present study is to answer these questions through a modified gambling task. The experiment one aimed to determine whether the brain potentials are different with predictable and unpredictable outcomes. In the next two experiments, we aimed to research the brain difference with risky decision-making in different value context, with positive value context in experiment two and with positive value context in experiment three.With the three experiment we concluded that:1. The predictable of the outcome in decision-making affected the overall process of our decision-making. The P200 reflected the early coding with the predictable of the outcomes. The P200 of the risky-prone subjects is larger than the risky-averse subjects'.2. In positive and negative context, we found differences in FRN with subjects having different risky preference, the FRN of the risky-averse subjects is larger than the risky-prone subjects'3.In the negative context, we found differences in P300 with subjects having different risky preference, the P300 of the risky-averse subjects is larger than the risky-prone subjects'...