Institute for Performance Research, Manchester Metropolitan University, Cheshire Faculty, Crewe Green Road, Crewe, Cheshire CW1 5DU, United Kingdom.
Brain Cogn. 2012 Oct;80(1):83-8. doi: 10.1016/j.bandc.2012.04.010. Epub 2012 May 28.
Action observation (AO) and movement imagery (MI) have been reported to share similar neural networks. This study investigated the congruency between AO and MI using the eye gaze metrics, dwell time and fixation number. A simple reach-grasp-place arm movement was observed and, in a second condition, imagined where the movement was presented from the first person perspective (1PP) and the third person perspective (3PP). Dwell time and number of fixations were calculated for whole scene and regions of interest (ROIs). For whole scene, no significant differences were found in the number of fixations for condition (AO, MI) or perspective. Dwell time, however, was significantly longer in AO than MI. For ROIs, the number of fixations was significantly greater in 1PP than 3PP. The data provide support for congruence between motor simulation states but also indicate some functional differences.
动作观察（AO）和运动想象（MI）被报道具有相似的神经机制。本研究使用眼动追踪指标（注视时间和注视点数）来考察 AO 和 MI 的一致性。被试观察一个简单的伸手-抓握-放置手臂运动，然后在第二个条件下，从第一人称视角（1PP）和第三人称视角（3PP）想象该运动。计算了整个场景和感兴趣区域（ROI）的注视时间和注视点数。对于整个场景，条件（AO、MI）或视角对注视点数没有显著影响。然而，AO 的注视时间显著长于 MI。对于 ROI，1PP 的注视点数显著多于 3PP。这些数据为运动模拟状态的一致性提供了支持，但也表明了一些功能上的差异。
