Abstract：
Self-concept clarity (SCC) refers to the extent to which self-beliefs are clearly and confidently defined, internally consistent, and stable. While there is an abundance of research showing an association between SCC, well-being, and effective self-regulation, there is little knowledge about how SCC relates to basic cognitive processes such as attention and memory. Drawing on the attentional function theory of cognitive control, we hypothesized that low SCC is associated with greater attentional control during a trait assessment task. We also expected that low SCC individuals retrieve self-related information from semantic memory less efficiently compared to high SCC individuals. Fifty participants took part in the ERP study. The P300 and N400 components were measured as electrophysiological indices of attentional and semantic processing. The results showed that individuals with low SCC had larger P300 amplitude in response to positive versus negative words, and marginally larger P300 amplitude in response to positive words compared to high SCC individuals. These results suggest greater attentional involvement in the processing of positive self-related information in people with low SCC. There were no significant differences between groups in N400 amplitude. The results are discussed in the context of the relationship of SCC to self-esteem and self-motive theory.
摘要：
自我概念清晰度（SCC）是指在多大程度上明确和自信地定义自我信念，内部一致，和稳定。虽然有大量研究表明SCC之间存在关联，幸福,和有效的自我调节，关于SCC与注意力和记忆等基本认知过程的关系知之甚少。借鉴认知控制的注意功能理论,我们假设在特质评估任务期间,低SCC与更大的注意力控制相关.我们还预计，与高SCC个体相比，低SCC个体从语义记忆中检索自我相关信息的效率较低。50名参与者参加了ERP研究。测量P300和N400成分作为注意和语义加工的电生理指标。结果表明，SCC低的个体对阳性词和阴性词的P300振幅较大，与高SCC个体相比，对阳性词的P300振幅略大。这些结果表明，在患有低SCC的人中，更多的注意力参与了积极的自我相关信息的处理。N400振幅组间差异无统计学意义。在SCC与自尊和自我激励理论的关系的背景下讨论了结果。
