Interference effect of observed human movement on action is due to velocity profile of biological motion
Interference effect of observed human movement on action is due to velocity profile of biological motion
复制标题
DOI：
10.1080/17470910701428190
复制
发表时间：
2007-09-01
影响因子：
2
通讯作者：
Blakemore, Sarah-Jayne
中科院分区：
文献类型：
--
作者：
Kilner, James;Hamilton, Antonia F. de C.;Blakemore, Sarah-Jayne
以前已经表明，观察人类而不是机器人的动作会干扰执行的动作（Kilner，Pauligan和Blakemore，2003）。在这里，我们调查了人体运动的哪些方面导致了这种干扰效应。受试者在观看一段视频时做手臂运动，视频中要么是一个人做手臂运动，要么是一个球在屏幕上移动。人类和球的视频包含生物（最小的加加速度）或非生物（恒定速度）的运动。执行和观察到的手臂运动是一致的（相同方向）或不一致的（切线方向）。结果表明，观察到的动作根据它们是由人还是球做出的而被不同地处理。对于球的视频，生物和非生物不一致的运动干扰执行手臂运动。相比之下，对于人类视频，运动的速度曲线是关键因素：只有不一致的生物人类运动才会干扰执行的手臂运动。我们认为，干扰效应可能是由于大脑对不同类型的运动刺激的信息，或者是由于不同类型的形式和运动的先前经验的影响。
It has previously been shown that observing an action made by a human, but not by a robot, interferes with executed actions (Kilner, Paulignan, & Blakemore, 2003). Here, we investigated what aspect of human movement causes this interference effect. Subjects made arm movements while observing a video of either a human making an arm movement or a ball moving across the screen. Both human and ball videos contained either biological (minimum jerk) or non-biological (constant velocity) movements. The executed and observed arm movements were either congruent (same direction) or incongruent (tangential direction) with each other. The results showed that observed movements are processed differently according to whether they are made by a human or a ball. For the ball videos, both biological and non-biological incongruent movements interfered with executed arm movements. In contrast, for the human videos, the velocity profile of the movement was the critical factor: only incongruent, biological human movements interfered with executed arm movements. We propose that the interference effect could be due either to the information the brain has about different types of movement stimuli or to the impact of prior experience with different types of form and motion.