social distance-exp5-57.rar

<p>In the current investigation we explore how the social distance influence the process of uncertain decision making .Thirty-five healthy subjects (15 female) completed a modified IGT for three social distance subjects (self, friend and stranger) during Event Related Potentials (ERP) recording. The analysis was focused on the three different stages of uncertain decision making process. During the choice evaluation stage, the P300 for advantageous deck when gambling for a stranger was higher than when gambling for him/herself and a friend, while results were contrary when evaluating disadvantageous deck. During the response selection stage, gambling for a stranger produced larger DPN amplitude than gambling for oneself. During the feedback evaluation stage, FRN was larger when gambling for oneself than for a stranger, and fP300 distinguished the low from the high social distance. These results suggest that the modulation effect of social distance worked differently in the distinct stages of uncertain decision-making.