童年期被忽视个体注意偏向的P300研究  

P300 of attention bias in individuals neglected in childhood

作　　者：马苏娟 元帅[2] 杨世昌[1] 

机构地区：[1]新乡医学院第二附属医院,河南新乡453002 [2]新乡医学院三全学院

出　　处：《精神医学杂志》2016年第2期102-104,共3页Journal of Psychiatry

摘　　要：目的探究童年期被忽视个体注意偏向的P300特点。方法选取40名学生根据儿童被忽视量表(CNS)评分将其分为研究组和对照组各20名,以正性、负性和中性面孔图片为实验材料,采用空间线索任务,借助事件相关电位技术(ERP)对两组被试进行注意偏向测验。结果研究组CNS评分高于对照组(P<0.01),被试类型主效应显著,研究组比对照组诱发了更小的P300波幅(P<0.01)。Pearson相关分析发现,被试的受忽视程度与负性情绪面孔图片、正性情绪面孔图片诱发的P300波幅呈负相关(P<0.05)。结论童年期被忽视个体可能伴随有认知功能的损害,能有效调用认知资源的程度降低;受忽视程度越高,对有效价的情绪面孔能调用的认知资源越少。Objective To investigate the P300 features of attention bias in individuals neglected in childhood. Methods 40 students volunteering to join the study were divided into study group（ 20 cases） and control group（ 20 cases） according to score of Childhood Neglect Scale（ CNS）. Attention bias was detected with negative,positive and neutral face pictures as the material,spatial cueing task and ERP as the methods. Results Score of CNS was significantly higher in study group than that in control group（ P〈0. 01）. Main effects of participants were significant. P300 amplitude in study group was smaller than that in control group（ P〈0. 01）. Pearson correlation analysis showed that degree of being neglected was negatively correlated with P300 amplitude induced by negative and positive face pictures（ P〈0. 05）. Conclusion Damage in cognitive function and decrease in cognitive resource transfer may take place in individuals neglected in childhood; the higher the neglect level,the less the cognitive resource that can be transferred to effective face pictures.

关 键 词：童年期 忽视个体 注意偏向 事件相关电位 P300 

分 类 号：B844.2[哲学宗教—发展与教育心理学]