Key Laboratory of Personality and Cognition, Faculty of Psychological Science, Southwest University, Beibei, Chongqing, China.
Cognitive Psychology Unit, Institute for Psychological Research and Leiden Institute for Brain and Cognition, Leiden University, Wassenaarseweg 52, 2333 AK, Leiden, The Netherlands.
Psychol Res. 2020 Feb;84(1):120-127. doi: 10.1007/s00426-018-0976-9. Epub 2018 Jan 10.
The virtual hand illusion (VHI) paradigm demonstrates that people tend to perceive agency and bodily ownership for a virtual hand that moves in synchrony with their own movements. Given that this kind of effect can be taken to reflect self-other integration (i.e., the integration of some external, novel event into the representation of oneself), and given that self-other integration has been previously shown to be affected by metacontrol states (biases of information processing towards persistence/selectivity or flexibility/integration), we tested whether the VHI varies in size depending on the metacontrol bias. Persistence and flexibility biases were induced by having participants carry out a convergent thinking (Remote Associates) task or divergent-thinking (Alternate Uses) task, respectively, while experiencing a virtual hand moving synchronously or asynchronously with their real hand. Synchrony-induced agency and ownership effects were more pronounced in the context of divergent thinking than in the context of convergent thinking, suggesting that a metacontrol bias towards flexibility promotes self-other integration.
虚拟手错觉（VHI）范式表明，当一个与自身运动同步移动的虚拟手时，人们倾向于感知到它的自主性和身体所有权。鉴于这种效果可以反映出自我一体整合（即将一些外部、新颖的事件整合到自我的表现中），并且之前已经表明自我一体整合受到元控制状态的影响（信息处理朝向持久性/选择性或灵活性/整合的偏见），我们测试了 VHI 是否会根据元控制偏见而变化。通过让参与者分别进行聚合思维（远程联想）任务或发散思维（替代用途）任务来产生持久性和灵活性偏见，同时体验虚拟手与真实手同步或不同步的运动。在发散思维的背景下，与同步运动相关的自主性和所有权效应比在聚合思维的背景下更为明显，这表明元控制偏向灵活性促进了自我一体整合。
