Zhu Siyu, Yang Jiemin, Li Hong, Yuan Jiajin
The Affect Cognition and Regulation Laboratory (ACRLab), Institute of Brain and Psychological Science, Sichuan Normal University, Chengdu, China.
The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, China.
Cogn Neurodyn. 2022 Dec;16(6):1351-1359. doi: 10.1007/s11571-022-09784-4. Epub 2022 Feb 23.
Multimodal Electroencephalography techniques were used to determine whether the name of famous people undergoes self-relevant processing due to a shared surname with participants. During a three-stimulus oddball task, brain activity was recorded when participants suddenly saw their own names (self-name [SN]), a famous name with the same surname (FNS), or a famous name with a different surname (FND). While familiarity ratings were kept similar across the three kinds of name, behavioral analysis showed a higher rating on self-relevance for SN than for FNS, which, in turn, received a higher rating than FND. P2 amplitudes demonstrated a similar enhancement in response to SN and FNS compared to FND while P3 amplitudes and power of theta band (3.5-6 Hz) oscillation were more pronounced in response to SN than to FNS, which in turn elicited larger P3 and theta activities than FND. These findings, excluding the influence of familiarity, revealed that famous people sharing same surname with us could elicit a reliable self-relevant effect, despite lack of real social connection. This self-relevant processing may be embodied by the P3 amplitude and theta band neural oscillation in EEG.
多模态脑电图技术被用于确定名人的名字是否因与参与者姓氏相同而经历自我相关处理。在一个三刺激Oddball任务中，当参与者突然看到自己的名字（自我名字[SN]）、姓氏相同的名人名字（FNS）或姓氏不同的名人名字（FND）时，记录大脑活动。虽然对这三种名字的熟悉度评分保持相似，但行为分析表明，与FNS相比，SN的自我相关性评分更高，而FNS的评分又高于FND。与FND相比，P2波幅在对SN和FNS的反应中表现出类似的增强，而P3波幅和θ波段（3.5 - 6赫兹）振荡的功率在对SN的反应中比对FNS更明显，而FNS又比FND引发更大的P3和θ活动。这些发现排除了熟悉度的影响，表明与我们姓氏相同的名人尽管缺乏实际的社会联系，但仍能引发可靠的自我相关效应。这种自我相关处理可能体现在脑电图中的P3波幅和θ波段神经振荡上。
