Wu Lili, Gu Ruolei, Cai Huajian, Luo Yu L L, Zhang Jianxin
Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
PLoS One. 2014 Nov 6;9(11):e111391. doi: 10.1371/journal.pone.0111391. eCollection 2014.
Mothers are important to all humans. Research has established that maternal information affects individuals' cognition, emotion, and behavior. We measured event-related potentials (ERPs) to examine attentional and evaluative processing of maternal stimuli while participants completed a Go/No-go Association Task that paired mother or others words with good or bad evaluative words. Behavioral data showed that participants responded faster to mother words paired with good than the mother words paired with bad but showed no difference in response to these others across conditions, reflecting a positive evaluation of mother. ERPs showed larger P200 and N200 in response to mother than in response to others, suggesting that mother attracted more attention than others. In the subsequent time window, mother in the mother + bad condition elicited a later and larger late positive potential (LPP) than it did in the mother + good condition, but this was not true for others, also suggesting a positive evaluation of mother. These results suggest that people differentiate mother from others during initial attentional stage, and evaluative mother positively during later stage.
母亲对所有人来说都很重要。研究表明，母亲相关信息会影响个体的认知、情感和行为。我们测量了事件相关电位（ERP），以检验在参与者完成一个Go/No-go联想任务时，对母亲相关刺激的注意力和评价性加工过程，该任务将母亲或其他人的词语与好或坏的评价性词语配对。行为数据显示，与搭配坏评价的母亲词语相比，参与者对搭配好评价的母亲词语反应更快，但在不同条件下对其他人的词语反应没有差异，这反映出对母亲的积极评价。ERP结果显示，与对其他人的词语反应相比，对母亲的词语反应中P200和N200更大，这表明母亲比其他人更能吸引注意力。在随后的时间窗口中，在母亲+坏评价条件下的母亲词语比在母亲+好评价条件下引发了更晚且更大的晚期正电位（LPP），但对其他人的词语来说并非如此，这也表明对母亲的积极评价。这些结果表明，人们在最初的注意力阶段将母亲与其他人区分开来，并在后期对母亲进行积极评价。
