ERP analyses of risk decisions under various intensities of specific emotions
作者单位：Cell Electrophysiology LaboratoryWannan Medical College Rising-Star GroupWannan Medical College Department of InsuranceWannan Medical College Department of Medical Psychology Anhui Medical University
会议名称：《中国神经科学学会第十二届全国学术会议》
会议日期：2017年
学科分类：0710[理学-生物学] 07[理学] 071006[理学-神经生物学]
基 金：supported by AHUTPIE 201610368123 NSFC 31271155
关 键 词：Risk decision Intensity of emotion ERP
摘 要：Objective To explore what decisions people will make under various intensities of specific emotions. Methods The subjects were randomly divided into 7 groups（n=10）, 3 types of emotion with higher and lower intensity, and control group. The higher intensity of enjoyable, frightening and irritating emotion was induced by watching corresponding enjoyable, frightening and irritating videos, while lower intensity of each emotion was induce by watching corresponding pictures. The subjects in control groups were not pretreated. The risky decisions with the technology of E-prime and ERP recording and analyses were conducted, including comparison the behavior disparities of risky and conservative choices, the index of N200 and P300 in ERP. Results（1） The risky decision behavior did not show obvious disparities（P0.05）.（2） The P300 analysis with higher intensity of emotion showed significant difference between anger group and terror group（P0.05）.（3） The index of P300 with lower intensity was different between anger and terror groups, or between delight and anger groups（P0.05）.（4） The index of N200 with higher intensity was significant difference between anger and terror groups（P0.05）.（5）The N200 analysis with lower intensity showed no significant difference between groups（P0.05）.（6） The index of P300 with the same emotion was different in anger group or terror group between higher and lower intensity（P0.05）.（7） Analysis of N200 with the same emotion showed no difference in groups between intensities（P0.05）. Conclusion（1） The terror and anger both belong to negative emotion, but only anger group is consistent with delight group.（2） Under the delight and terror emotion, the higher intensity may have the bigger peak value than the lower intensity, but the anger emotion is reverse.