内隐条件下性别对恐惧刺激加工的影响

The Effect of Gender Difference on Fear Stimuli Processing Under Implicit Paradigm

采用内隐范式研究了性别差异对恐惧刺激加工的影响.实验一:在533张图片中选出50张图片,这些图片在唤醒度上是匹配的,但是在恐惧度和效价上是不匹配的;实验二:采用双向oddball范式,要求被试区分标准刺激和偏差刺激的内隐范式,研究性别差异对恐惧刺激加工的影响.结果发现:在内隐条件下,男性对中性刺激和恐惧刺激的反应时和正确率不存在显著差异,女性对恐惧刺激的反应显著快于对中性刺激的反应,且在正确率上对恐惧刺激的反应更加准确.女性对恐惧刺激的反应优势可能存在生物进化上的原因.

There is a gender difference in brain structure and function.A lot of study shows that female is more sensitive to fear stimuli.In this study,the authors use implicit paradigm to study the gender difference affection on fear stimuli processing.In EXP1,100 pictures were chosen form 523.Those pictures which include fear stimuli and neutral stimuli were similar in arousal but different in fear strength and valence.In EXP2,oddball was applied and subject was informed to do a standard stimuli and deviant stimuli classification.The result shows,under implicit paradigm,this is no difference for male in reaction time and correct rate between fear stimuli and neutral stimuli.However,female responded to fear stimuli faster than neutral stimuli and correct rate of fear stimuli is better than neutral stimuli.