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采用学习-再认范式,利用事件相关电位(ERPs)技术,探讨社会认知领域中的相关性(主相关词和他相关词)在内隐和外显记忆测验中的差异.结果发现,无论在内隐还是在外显记忆测验中,他相关词都比主相关词的ERP波形更负;在社会性材料的语义加工过程中,存在N400效应;在700～900ms时程上,存在提取方式的ERP分离:在内隐提取过程中,相关性的ERP之间不存在差异;而在外显提取过程中,两者的ERP存在显著差异;利用Curry6.0系统进行ERPs溯源分析发现,在400ms上主相关词和他相关词都激活了左楔前叶,而他相关词额外激活了右楔前叶,在600ms上二者的大脑发生源都在左楔前叶.总之,实验结果表明,人类对主相关词和他相关词的认知是不同的,对与自身关系更密切的他相关词反应更强,这体现了对与自身关系更密切刺激的注意偏向.
Using the learning-re-recognition paradigm, we used event-related potentials (ERPs) to explore the differences in implicit and explicit memory tests in social cognition (main related words and related words) In the implicit or explicit memory test, his related words are more negative than the main related words in the ERP waveform. In the process of semantic processing of social materials, there is an N400 effect. In the 700 ~ 900ms time-series, ERP separation: In the process of implicit extraction, there is no difference between the related ERPs; while in the process of explicit extraction, there is significant difference between the two ERPs; using the Curry6.0 system for ERPs traceability analysis found that in 400ms on the Lord Related words and his related words activated the left wedge anterior lobe, and his related word activated the right wedge anteriorly, both of which occurred in the anterior wedge of the left wedge at 600 ms.In conclusion, the experimental results showed that the human pair The main related words are different from the cognitions of his related words, and react more strongly to his related words which are more closely related to himself, which shows the attention bias toward the closer stimulation to himself.