Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China.
Key Laboratory of Brain and Cognitive Neuroscience, Liaoning Province, Dalian, China.
Psychophysiology. 2023 Jan;60(1):e14145. doi: 10.1111/psyp.14145. Epub 2022 Jul 14.
Self-positivity bias is a common psychological phenomenon in which individuals often associate positive information with themselves. However, little is known about how self-positivity bias is modulated by different language contexts (e.g., a first vs. second language). To this end, we analyzed behavioral and electrophysiological data to examine whether first or second languages play differential roles in the self-positivity bias effect. We used a modified self-positivity bias task which required Chinese-English bilinguals to judge strings of letters or characters as realwords or not and match associations between identity (self, other) and a geometric shape (circle, triangle). The target words in the experiment consisted of positive, negative, and neutral emotional words. The results showed that in the L2 context, the self-positivity condition elicited a smaller N400 effect relative to the self-negativity condition and a larger late positive component effect relative to the self-negativity and self-neutrality conditions. Furthermore, the other-positivity condition elicited a stronger N400 effect than the other-neutrality condition. These patterns did not emerge in the L1 context. We discuss the implications and contributions of these findings to better understand the interaction between emotion and self-concept in different language contexts.
自我肯定偏向是一种常见的心理现象，个体通常将积极的信息与自己联系在一起。然而，人们对自我肯定偏向如何受到不同语言语境（例如第一语言和第二语言）的调节知之甚少。为此，我们分析了行为和电生理数据，以检验第一语言和第二语言是否在自我肯定偏向效应中发挥不同的作用。我们使用了一种改良的自我肯定偏向任务，要求汉英双语者判断字符串的字母或字符是否为真实单词，并将身份（自我、他人）与几何形状（圆形、三角形）之间的关联进行匹配。实验中的目标词包括积极、消极和中性情绪词。结果表明，在第二语言语境中，与自我否定条件相比，自我肯定条件引发的 N400 效应较小，与自我否定和自我中性条件相比，晚期正成分效应较大。此外，与其他中性条件相比，他人肯定条件引发的 N400 效应更强。这些模式在第一语言语境中并未出现。我们讨论了这些发现对更好地理解不同语言语境中情绪和自我概念之间相互作用的意义和贡献。
