Key Laboratory of Cognition and Personality (Ministry of Education), School of Psychology, Southwest University, Beibei, Chongqing 400715, PR China.
Neuroscience. 2010 Sep 15;169(4):1758-67. doi: 10.1016/j.neuroscience.2010.06.024. Epub 2010 Jun 25.
Numerous studies showed enhanced sensitivity of females to emotional stimuli relative to males using multiple tasks. However, in the present study, two event-related potential (ERP) experiments targeting the impact of gender on rare stimulus processing both showed enhanced sensitivity of females to rare stimulus that is neutral, irrelevant to emotion. Subjects were required to press different keys for standard and rare pictures in Experiment 1, and to do nothing but to passively view the pictures in Experiment 2. Rare pictures elicited more intense pop-out effects in females, at both neuroelectrical (multiple levels of ERP analyses) and behavioral (response latencies and pop-out assessment) levels across experiments. Thus, females are equipped with enhanced sensitivity to rare, emotion-irrelevant stimuli relative to males, probably as a result of evolutionary adaptation. This effect is ought to be considered in studies that use an oddball paradigm.
许多研究使用多种任务表明女性对情绪刺激的敏感性相对于男性增强。然而，在本研究中，两项针对性别对稀有刺激处理影响的事件相关电位 (ERP) 实验均表明女性对中性、与情绪无关的稀有刺激的敏感性增强。在实验 1 中，要求受试者对标准和稀有图片按不同键，在实验 2 中，受试者只需被动观看图片。在两个实验中，稀有图片在神经电（ERP 分析的多个层次）和行为（反应时和弹出评估）水平上都引起了女性更强烈的弹出效应。因此，与男性相比，女性对稀有、与情绪无关的刺激具有更高的敏感性，这可能是进化适应的结果。在使用异常范式的研究中，应该考虑到这种影响。
