Guo Chengyao, Dupuis-Roy Nicolas, Jiang Jun, Xu Miaomiao, Xiao Xiao
School of Public Health and Management, Chongqing Medical University, Chongqing, China.
Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China.
Front Psychol. 2021 Apr 14;12:616224. doi: 10.3389/fpsyg.2021.616224. eCollection 2021.
This experiment used event-related potentials (ERPs) to study the tactile-visual information conflict processing in a tactile-visual pairing task and its modulation by tactile-induced emotional states. Eighteen participants were asked to indicate whether the tactile sensation on their body matched or did not match the expected tactile sensation associated with the object depicted in an image. The type of tactile-visual stimuli (matched vs. mismatched) and the valence of tactile-induced emotional states (positive vs. negative) were manipulated following a 2 × 2 factorial design. Electrophysiological analyses revealed a mismatched minus matched negative difference component between 420 and 620 ms after stimulus onset in the negative tactile-induced emotional state condition. This ND420-620 component was considered as a sign of the cross-modal conflict processing during the processing of incongruent tactile-visual information. In contrast, no significant mismatched minus matched negative difference component was found in the positive tactile-induced emotional state condition. Together, these results support the hypothesis that a positive emotional state induced by a positive tactile stimulation improves tactile-visual conflict processing abilities.
本实验采用事件相关电位（ERP）来研究触觉 - 视觉配对任务中的触觉 - 视觉信息冲突处理及其受触觉诱发情绪状态的调节。18名参与者被要求指出其身体上的触觉感受与图像中描绘物体所关联的预期触觉感受是否匹配。触觉 - 视觉刺激的类型（匹配与不匹配）以及触觉诱发情绪状态的效价（积极与消极）按照2×2析因设计进行操控。电生理分析显示，在消极触觉诱发情绪状态条件下，刺激开始后420至620毫秒之间存在不匹配减去匹配的负向差异成分。这种ND420 - 620成分被认为是在处理不一致的触觉 - 视觉信息过程中跨模态冲突处理的一个标志。相比之下，在积极触觉诱发情绪状态条件下未发现显著的不匹配减去匹配的负向差异成分。总之，这些结果支持了以下假设：积极的触觉刺激诱发的积极情绪状态可提高触觉 - 视觉冲突处理能力。
