Bai Xujia, Chen Xu, Zhou Mi, Liu Chen, Hu Yuting
Southwest University, Chongqing, 400715, China.
Southwest University, Chongqing, 400715, China.
Biol Psychol. 2019 Apr;143:41-52. doi: 10.1016/j.biopsycho.2019.02.006. Epub 2019 Feb 14.
Two studies using event-related potentials ERPs) combined with emotional versions of 2-back tasks were performed to examine the effects of negative context on working memory (WM) updating task performance among anxiously attached individuals. One study also assessed the soothing effect of priming memories of attachment security on task performance. Three types of information, including negative attachment pictures, general negative pictures and neutral pictures, were used as materials in the present study. Impairment in WM updating capacity was found in the context of negative attachment pictures in both studies, and the ERP results revealed the following dynamic process: the participants showed enhanced attention to negative attachment stimuli during the initial encoding stage, as expressed by a larger P1, but undue immersion in negative emotion led to a reduced P300 during the elaborate stage. However, security priming was useful in reducing mood disturbance in the context of a WM updating task, and the participants performed better on the task after secure attachment activation. The implications of these findings for emotional WM updating capacity and information processing patterns among anxiously attached individuals are discussed.
两项研究使用事件相关电位（ERPs）并结合2-back任务的情感版本，以检验消极情境对焦虑依恋个体工作记忆（WM）更新任务表现的影响。其中一项研究还评估了启动依恋安全感记忆对任务表现的舒缓作用。本研究使用了三种类型的信息，包括消极依恋图片、一般消极图片和中性图片作为材料。两项研究均发现，在消极依恋图片情境下，WM更新能力受损，ERP结果揭示了以下动态过程：在初始编码阶段，参与者对消极依恋刺激表现出增强的注意力，表现为更大的P1，但在精细加工阶段，过度沉浸于消极情绪导致P300降低。然而，安全感启动有助于减少WM更新任务情境下的情绪干扰，并且在激活安全依恋后，参与者在任务上表现得更好。本文讨论了这些发现对焦虑依恋个体的情绪WM更新能力和信息处理模式的意义。
