Visual perception of support surface deformability from human body kinematics
Visual perception of support surface deformability from human body kinematics
复制标题
从人体运动学角度对支撑面变形的视觉感知
DOI：
10.1207/s15326969eco0601_2
复制
发表时间：
1994
影响因子：
1.9
通讯作者：
S. Flynn
中科院分区：
文献类型：
--
作者：
T. Stoffregen;S. Flynn
Riccio和Stoffregen（1988）认为支撑表面的动态特性影响行为的控制。这意味着事件的运动学形式，包括行为动物的运动，将受到它们发生的表面的动力学（例如，刚性、倾斜、摩擦）的影响。对于执行受表面约束（影响）的任何行为，物体的运动学应提供有关表面动力学的信息。这样的运动学可以被行为动物或观察动物行为的观察者用来感知与动作相关的表面特性。我们通过向观察者展示演员在刚性和可变形表面上的点光显示（Johansson, 1973）来评估后一种可能性。在实验1中，观察者将支撑面可变形性确定为可变性的维度，从各种动态维度中选择它。在剩下的实验中，观察者区分了表面。
Riccio and Stoffregen (1988) argued that dynamical properties of a surface of support influence the control of behavior. This implies that the kinematic form of events, including the movements of a behaving animal, will be influenced by the dynamics (e.g., rigidity, tilt, friction) of the surfaces on which they occur. For any behavior in which the execution is constrained (influenced) by a surface, the kinematics of the body should provide information about the dynamics of the surface. Such kinematics could be used for perception of action-relevant surface properties by the behaving animal or by observers who view the animal's behavior. We evaluated the latter possibility by presenting observers with point-light displays (Johansson, 1973) of an actor on rigid and deformable surfaces. In Experi- ment 1, observers identified support-surface deformability as the dimension of variability, selecting it from a variety of dynamical dimensions. In the remaining experiments observers differentiated the surfaces ac...