Abrams R A, Landgraf J Z
Department of Psychology, Washington University, St. Louis, MO 63130.
Percept Psychophys. 1990 Apr;47(4):349-59. doi: 10.3758/bf03210875.
Five experiments are reported in which subjects judged the movement or spatial location of a visible object that underwent a combination of real and induced (illusory) motion. When subjects attempted to reproduce the distance that the object moved by moving their unseen hands, they were more affected by the illusion than when they pointed to the object's perceived final location. Furthermore, pointing to the final location was more affected by the illusion when the hand movement began from the same position as that at which the object initially appeared, as compared with responses that began from other positions. The results suggest that people may separately encode two distinct types of spatial information: (1) information about the distance moved by an object and (2) information about the absolute spatial location of the object. Information about distance is more susceptible to the influence of an induced motion illusion, and people appear to rely differentially on the different types of spatial information, depending on features of the pointing response. The results have important implications for the mechanisms that underlie spatially oriented behavior in general.
本文报告了五项实验，实验中受试者判断一个可见物体的运动或空间位置，该物体经历了真实运动和诱导（错觉）运动的组合。当受试者试图通过移动他们看不见的手来重现物体移动的距离时，他们比指向物体感知到的最终位置时更容易受到错觉的影响。此外，与从其他位置开始的反应相比，当手部运动从物体最初出现的相同位置开始时，指向最终位置更容易受到错觉的影响。结果表明，人们可能分别编码两种不同类型的空间信息：（1）关于物体移动距离的信息和（2）关于物体绝对空间位置的信息。关于距离的信息更容易受到诱导运动错觉的影响，并且人们似乎根据指向反应的特征，不同程度地依赖不同类型的空间信息。这些结果对于一般空间定向行为背后的机制具有重要意义。
