Huang Zijun, Zhong Bowei, Yang Tengji, Fan Wei
Cognition and Human Behavior Key Laboratory of Hunan Province, School of Education Science, Hunan Normal University, No. 36 Lushan Road, Yuelu Dist., Changsha 410081, China.
Institute of Interdisciplinary Studies, Hunan Normal University, No. 36 Lushan Road, Yuelu Dist., Changsha 410081, China.
Cereb Cortex. 2025 Apr 1;35(4). doi: 10.1093/cercor/bhaf077.
Using event-related potentials, this study investigated the interplay between self-deception and varying motivations in influencing deceptive behavior. Participants in either the self-deception or nonself-deception condition were instructed to make deceptive decisions under different motivational contexts. Behavioral responses and neural activity were recorded throughout the decision-making process. Behaviorally, there were no significant differences in deception proportions between the self-deception and nonself-deception conditions under egoistic or mixed motivations. However, under altruistic motivation, participants in the self-deception condition engaged in more deceptive behavior compared to those in the nonself-deception condition. Event-related potential results revealed no significant differences in P2 and N2 amplitudes between the self-deception and nonself-deception conditions under egoistic or mixed motivations. However, under altruistic motivation, the self-deception condition was associated with reduced P2 amplitudes and more negative N2 amplitudes relative to the nonself-deception condition. Additionally, no significant interaction in P3 amplitudes was found between self-deception and different motivations. These findings suggest that the effect of self-deception on deceptive behavior is modulated by different motivations. Specifically, egoistic or mixed motivations might be associated with a self-serving tendency in deceptive behavior, while altruistic motivation appeared to enhance deceptive behavior in the self-deception condition, potentially to foster a prosocial image.
本研究利用事件相关电位，探究了自我欺骗与不同动机在影响欺骗行为时的相互作用。自我欺骗组和非自我欺骗组的参与者被要求在不同动机背景下做出欺骗性决策。在整个决策过程中记录行为反应和神经活动。行为学上，在利己或混合动机下，自我欺骗组和非自我欺骗组的欺骗比例没有显著差异。然而，在利他动机下，自我欺骗组的参与者比非自我欺骗组的参与者表现出更多的欺骗行为。事件相关电位结果显示，在利己或混合动机下，自我欺骗组和非自我欺骗组的P2和N2波幅没有显著差异。然而，在利他动机下，与非自我欺骗组相比，自我欺骗组的P2波幅降低，N2波幅更负。此外，自我欺骗与不同动机之间在P3波幅上未发现显著交互作用。这些发现表明，自我欺骗对欺骗行为的影响受不同动机的调节。具体而言，利己或混合动机可能与欺骗行为中的自利倾向有关，而利他动机似乎在自我欺骗条件下增强了欺骗行为，可能是为了塑造亲社会形象。
