摘要
目的 分析情绪启动效应的时程特征,并探讨情绪启动效应的自动加工本质。方法采用国际情绪图片作为刺激材料,设置三个SOA水平（刺激不同步时间：200ms,300ms和500ms）,采用卡方检验,分析各个SOA水平是否存在情绪启动效应;采用重复测量的方差分析,比较有启动效应的SOA之间的启动效应的大小差异。结果 SOA为200ms时,启动条件的平均反应时（519.27ms）显著短于非启动条件（576.90ms）;SOA为300ms时,启动条件的平均反应时（499.32ms）显著短于非启动条件（541.77ms）;SOA为500ms时则未观测到启动效应;SOA为200ms时的启动效应明显大于300ms。结论 本研究提示SOA为300ms时情绪启动效应已经衰减,并进一步验证了情绪启动效应的自动加工本质。
Objective To analyze the time course of affective priming and explore the automatic process of affective priming effect. Methods Using International Affective Pictures as stimulus, three SOA levels （200ms, 300ms, and 500ms） were employed. Priori contrasts were calculated between response latencies for af- fectively congruent, control and incongruent conditions for each of the SOA levels separately. ANOVA with repeated measures were conducted to compare the differences of mean facilitation/inhibition scores between SOA of 200ms and of 300ms. Results The response latencies for affectively congruence （519.27ms and 499.32ms, respectively） in SOA 200ms and 300ms were significantly shorter than the response latencies for affectively incongruence （576.90ms and 541.77ms, respectively ）, which didnt exist in the SOA of 500ms. The priming effect （facilitation/inhibition） of 200ms was stronger than that of 300ms. Conclusion Affective priming effects decay rapidly, and they can be observed best for SOA shorter than 300ms, and confirmed the automatic process nature of affective priming effect.
出处
《中国行为医学科学》
CSCD
2007年第3期258-260,共3页
Chinese Journal of Behavioral Medical Science
基金
博士学科点专项科研基金资助项目（20050533026）
湖南省自然科学基金资助项目（05JJ30053）
