ABSTRACT

This study measured mu rhythm desynchronization (MRD), while nine-month-old infants observed an agent extend her arm and hand, palm up (‘back-of-hand action’) either in social (object and recipient present), individual (object present, recipient absent), or social object-absent (recipient present, object absent) situations across two experiments. In addition, infants’ MRD was measured as they reached for objects. Results revealed significant mu desynchronization in the right centro-parietal region selectively for the social group, indicating that infants processed the back-of-hand action as an object-directed request. Findings suggest to extend the action reconstruction account to object-directed communicative actions as well.

摘要

这项研究测量了 mu 节律失同步 (MRD)，而 9 个月大的婴儿观察到代理人在社交（对象和接受者在场）、个人（对象存在，接受者不存在），或社会对象不存在（接受者存在，对象不存在）的情况在两个实验中。此外，婴儿的 MRD 在他们伸手去拿物体时被测量。结果显示，对于社会群体来说，右侧中央顶叶区域有显着的 mu 去同步化，这表明婴儿将手背动作作为对象导向的请求进行处理。研究结果建议将动作重建帐户扩展到面向对象的交流动作。