认知分心的强度对创伤性信息加工的影响

发布时间：2018-06-27 15:22

本文选题：认知分心 + LPP　；参考：《心理学报》2014年05期

【摘要】：结合ERP技术、创伤电影范式和改进的工作记忆范式探讨了认知分心的强度对创伤性信息加工的影响。结果发现,(1)高负荷上的N2波幅显著大于低负荷上的。(2)在低工作记忆负荷上,创伤负性图引发的LPP波幅显著大于创伤中性图和无关中性图;而在高工作记忆负荷上,三类图片引发的LPP波之间差异不再显著。(3)在创伤负性图上高、低负荷工作记忆任务诱发的LPP波差异显著,且高负荷条件下的LPP波幅显著小于低负荷条件。结果表明,相比低认知控制,早期高认知控制对创伤性信息的调节更有效,支持了认知控制理论。
[Abstract]:Combined with ERP technology, trauma film paradigm and improved working memory paradigm, the effects of cognitive distractions on traumatic information processing were discussed. The results showed that: (1) the amplitude of N2 wave on high load was significantly higher than that on low load. (2) on low working memory load, the amplitude of LPP induced by trauma negative map was significantly larger than that of trauma neutral map and independent neutral map, but on high working memory load, the amplitude of LPP was significantly higher than that of trauma neutral map and independent neutral map on low working memory load. The difference of LPP waves induced by three kinds of images was no longer significant. (3) the LPP waves induced by low load working memory tasks were significantly different from those on trauma negative maps and the amplitude of LPP waves under high load condition was significantly lower than that under low load condition. The results show that early high cognitive control is more effective in regulating traumatic information than low cognitive control, which supports the theory of cognitive control.
【作者单位】：华南师范大学心理应用研究中心;东莞市光正实验学校;湛江师范学院教育科学学院;
【基金】：国家自然科学基金项目(31371057) “幸福广州心理服务与辅导基地”项目资助
【分类号】：R641

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