title: The delay effect on outcome evaluation: results from an event-related potential study.
abstract: Behavioral studies demonstrate that the timing of receiving gains or losses affects decision-making, a phenomenon known as temporal discounting, as participants are inclined to prefer immediate rewards over delayed ones and vice versa for losses. The present study used the event-related potential technique with a simple gambling task to investigate how delayed rewards and losses affected the brain activity in outcome evaluations made by 20 young adults. Statistical analysis revealed a larger feedback-related negativity (FRN) effect between loss and gain following immediate outcomes than following future outcomes. In addition, delay impacted FRN only in gain conditions, with delayed winning eliciting a more negative FRN than immediate winning. These results suggest that temporal discounting and sign effect could be encoded in the FRN in the early stage of outcome evaluation.
authors: Psychology Research Center, South China Normal University Guangzhou, China.
authors: Chen
authors: C
authors: Qu
authors: Yunyun
authors: Y
authors: Huang
authors: Yuru
authors: Y
authors: Wang
authors: Yu-Xia
authors: YX
authors: Huang
keywords: decision-making; event-related potential; feedback-related negativity; reward; temporal discounting