控制和外界客体社会效价对身体拥有感的影响

研究采用运动橡胶手错觉范式,操纵了“控制”和“社会效价”两个变量,通过行为实验探讨了控制和社会效价对身体拥有感的影响。结果发现,与“被动控制”条件相比,“主动控制”条件产生了更强的拥有感; 与“不利”条件相比,“有利”条件产生了更强的拥有感。且“控制”和“社会效价”的交互作用显著:无论哪种控制条件,有利条件下的拥有感都显著高于不利条件下的拥有感; 无论哪种效价条件,主动控制条件下的拥有感均显著高于被动控制条件下的拥有感。该结果表明,控制和社会效价是产生身体拥有感的条件。研究结果为提高假肢佩戴者对假肢的心理接纳程度提供了有益的训练途径。

The Effects of Control and Social Valence of External Object on Sense of Body Ownership

This study focused on the effects of control and social valence on the sense of body ownership.The experiment used a 2(control:active control vs.passive control)×2(Social valence:beneficial vs.unbeneficial)design to explore the effects of control and social valence on the sense of body ownership through the moving paradigm of the RHI(mRHI).The results were as follows:(1)Compared with the passive control condition,the active control condition showed a higher level of rubber hand illusion; Compared with the unbeneficial condition,the beneficial condition showed a higher level of rubber hand illusion.(2)The interaction effect between control and social valence on rubber hand illusion was significant.No matter whether the participants could control the rubber hand or not,the sense of ownership under beneficial condition was significantly higher than that under unbeneficial condition.No matter whether the rubber hand was beneficial or not,the sense of ownership under active control condition was significantly higher than that under passive control condition.The results suggest that active control and social valence act as evidence for eliciting the sense of body ownership.The results provide a useful training approach for improving the psychological acceptance of prosthetic limbs.