Larson Michael J, South Mikle, Clayson Peter E
Department of Psychology, Brigham Young University, Provo, Utah 84602, USA.
Neuroreport. 2011 Jan 5;22(1):44-8. doi: 10.1097/WNR.0b013e3283427403.
We tested competing hypotheses for sex differences in performance monitoring using the error-related negativity and the posterror positivity components of the event-related potential (ERP). High-density ERPs were acquired while 100 female and 98 male partcipants completed a flanker task. Sexes did not differ in accuracy or posterror slowing, although females showed longer overall response times. Males showed increased amplitude error-related negativity and posterror positivity components relative to females; sexes did not differ on correct-trial ERPs. Sex differences remained in subgroups matched for depression and anxiety levels. Results indicate that participant sex should be considered in understanding the cognitive and emotional correlates of performance monitoring.
我们使用事件相关电位（ERP）的错误相关负波和错误后正波成分，对绩效监测中的性别差异的相互竞争假设进行了测试。在100名女性和98名男性参与者完成侧翼任务时，采集了高密度ERP。尽管女性的总体反应时间较长，但两性在准确性或错误后反应减慢方面没有差异。与女性相比，男性的错误相关负波和错误后正波成分的波幅增加；在正确试验的ERP方面，两性没有差异。在抑郁和焦虑水平匹配的亚组中，性别差异仍然存在。结果表明，在理解绩效监测的认知和情感相关性时，应考虑参与者的性别。
