CAJ | 학술논문

本研究以高兴、愤怒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）探讨低自尊个体注意偏向的内在机制及生理基础，即从电生理的角度，探讨注意偏向的内在机制是反映了注意的快速定向还是注意的解脱困难，亦或是既有快速注意定向又伴随注意的解脱困难。行为数据发现，高低自尊个体在有效提示下的反应显著快于无效提示条件。脑电数据发现，无效提示条件下，愤怒面孔后的靶子比高兴和中性面孔后的靶子在低自尊个体中诱发了更大的P1和更小的N1波幅，有效提示下无显著差异；高自尊个体在N1和P1波幅上无显著结果。晚期P300成分上，无效提示比有效提示诱发了更正的波幅，未发现自尊相关的显著差异。结果表明，低自尊个体对评价性威胁信息（愤怒）的注意偏向是对威胁信息（愤怒）的注意解脱困难。
본연구이고흥、분노화중성면공도편위실험재료，채용공간선색임무，차조사건상관전위기술（ERP）탐토저자존개체주의편향적내재궤제급생리기출，즉종전생리적각도，탐토주의편향적내재궤제시반영료주의적쾌속정향환시주의적해탈곤난，역혹시기유쾌속주의정향우반수주의적해탈곤난。행위수거발현，고저자존개체재유효제시하적반응현저쾌우무효제시조건。뇌전수거발현，무효제시조건하，분노면공후적파자비고흥화중성면공후적파자재저자존개체중유발료경대적P1화경소적N1파폭，유효제시하무현저차이；고자존개체재N1화P1파폭상무현저결과。만기P300성분상，무효제시비유효제시유발료경정적파폭，미발현자존상관적현저차이。결과표명，저자존개체대평개성위협신식（분노）적주의편향시대위협신식（분노）적주의해탈곤난。
Research has revealed that attentional biases are comprised of rapidly attentional orienting towards threat, difficulty in disengaging attention from threat. However, the neural basis of the component of attentioanl bias is still uncertain. In present study, a spatial cueing task was used to measure attentional biases because this task can differentiate rapidly attentional orienting and difficulty in disengagement. Event related potentials for targets were recorded when participants performed the spatial cueing task. Behavioral data showed that reaction time was longer under invalid condition than valid condition. ERP data revealed that LSE individuals showed more enhanced P1 and smaller N1 amplitude when the face cue was ＂angry＂ relative to ＂ neutral＂ and ＂happy＂ on invalid trials. More increased P290-370 amplitude under invalid condition than valid condition. No other significant main or interaction effects were found. These findings suggested that attentional bias in LSE individuals reflect a difficulty in disengaging from threaten stimuli, rather than a rapidly attentional orienting for threaten stimuli.