Academy of Psychology and Behavior, Tianjin Normal University Tianjin, China.
Front Hum Neurosci. 2011 Jul 27;5:64. doi: 10.3389/fnhum.2011.00064. eCollection 2011.
Understanding minds is the cognitive basis of successful social interaction. In everyday life, human mental activity often happens at the moment of social interaction among two or multiple persons instead of only one-person. Understanding the interactive mind of two- or multi-person is more complex and higher than understanding the single-person mind in the hierarchical structure of theory of mind. Understanding the interactive mind maybe differentiate from understanding the single mind. In order to examine the dissociative electrophysiological correlates of reading the single mind and reading the interactive mind, the 64 channels event-related potentials were recorded while 16 normal adults were observing three kinds of Chinese idioms depicted physical scenes, one-person with mental activity, and two- or multi-person with mental interaction. After the equivalent N400, in the 500- to 700-ms epoch, the mean amplitudes of late positive component (LPC) over frontal for reading the single mind and reading the interactive mind were significantly more positive than for physical representation, while there was no difference between the former two. In the 700- to 800-ms epoch, the mean amplitudes of LPC over frontal-central for reading the interactive mind were more positive than for reading the single mind and physical representation, while there was no difference between the latter two. The present study provides electrophysiological signature of the dissociations between reading the single mind and reading the interactive mind.
理解思维是成功社交互动的认知基础。在日常生活中，人类的心理活动往往发生在两个人或多个人之间的社交互动时刻，而不是只有一个人。理解两个人或多个人的互动思维比理解心理理论层次结构中的单人思维更为复杂和高级。理解互动思维可能与理解单一思维不同。为了研究阅读单人思维和阅读互动思维的分离电生理相关性，我们记录了 16 名正常成年人观察三种中国成语的 64 通道事件相关电位，这三种成语分别描绘了物理场景、一个人有心理活动和两个人或多个人有心理互动。在等效 N400 之后，在 500 到 700 毫秒的时段内，阅读单人思维和阅读互动思维的额部晚期正成分（LPC）的平均振幅明显比物理表示更为积极，而前两者之间没有差异。在 700 到 800 毫秒的时段内，阅读互动思维的额-中央 LPC 的平均振幅比阅读单人思维和物理表示更为积极，而后两者之间没有差异。本研究提供了阅读单人思维和阅读互动思维之间分离的电生理特征。
