Savostyanov Alexander, Bocharov Andrey, Astakhova Tatiana, Tamozhnikov Sergey, Saprygin Alexander, Knyazev Gennady
Laboratory of Differential Psychophysiology, State-Research Institute of Physiology and Basic Medicine, 630117 Novosibirsk, Russia.
Laboratory of Psychological Genetics, Institute of Cytology and Genetics of SB RAS, 630090 Novosibirsk, Russia.
Brain Sci. 2020 Oct 27;10(11):782. doi: 10.3390/brainsci10110782.
The aim was to investigate behavioral reactions and event-related potential (ERP) responses in healthy participants under conditions of personalized attribution of emotional appraisal vocabulary to one-self or to other people. One hundred and fifty emotionally neutral, positive and negative words describing people's traits were used. Subjects were asked to attribute each word to four types of people: one-self, loved, unpleasant and neutral person. The reaction time during adjectives attribution to one-self and a loved person was shorter than during adjectives attribution to neutral and unpleasant people. Self-related adjectives induced higher amplitudes of the N400 ERP peak in the medial cortical areas in comparison with adjectives related to other people. The amplitude of P300 and P600 depended on the emotional valence of assessments, but not on the personalized attribution. The interaction between the attribution effect and the effect of emotional valence of assessments was observed for the N400 peak in the left temporal area. The maximal amplitude of N400 was revealed under self-attributing of emotionally positive adjectives. Our results supported the hypothesis that the emotional valence of assessments and the processing of information about one-self or others were related to the brain processes that differ from each other in a cortical localization or time dynamics.
目的是研究健康参与者在将情感评价词汇个性化归因于自己或他人的情况下的行为反应和事件相关电位（ERP）反应。使用了150个描述人的特质的情感中性、积极和消极词汇。受试者被要求将每个词汇归因于四种类型的人：自己、爱人、令人不快的人以及中性的人。将形容词归因于自己和爱人时的反应时间比归因于中性和令人不快的人时短。与他人相关的形容词相比，自我相关的形容词在内侧皮质区域诱发的N400 ERP峰值幅度更高。P300和P600的幅度取决于评价的情感效价，而不取决于个性化归因。在左侧颞区观察到归因效应与评价的情感效价效应之间的相互作用在N400峰值上。在对情感积极的形容词进行自我归因时，N400的最大幅度被揭示出来。我们的结果支持了这样的假设，即评价的情感效价以及关于自己或他人的信息处理与在皮质定位或时间动态方面彼此不同的大脑过程相关。
