Nawrot M, Blake R
Department of Psychology, Vanderbilt University, Nashville, TN 37240.
Perception. 1993;22(6):635-42. doi: 10.1068/p220635.
Observers perceive incoherent motion and no hint of depth when viewing stochastic motion, in which stimulus elements move in all possible directions. As earlier work has shown, depth can be specified by introducing a brief interocular delay between the presentation of corresponding animation frames of this 'noise' to the left and right eyes. A study is reported in which observers were adapted to a stereoscopic display consisting of coherent planes of motion at different depths. This stereoscopic adaptation caused incoherent depthless motion to take on the qualities of structure and depth, and it could nullify the depth induced by interocular delay. The findings are interpreted within the context of a neural model consisting of units selectively responsive to different directions of motion at different planes of depth.
观察者在观看随机运动时，会察觉到运动不连贯且没有深度线索，在随机运动中刺激元素会向所有可能的方向移动。正如早期研究所示，通过在向左右眼呈现这种“噪声”的相应动画帧之间引入短暂的双眼延迟，可以确定深度。本文报道了一项研究，其中观察者适应了由不同深度的连贯运动平面组成的立体显示。这种立体适应使不连贯的无深度运动具有了结构和深度的特征，并且可以消除由双眼延迟引起的深度。这些发现是在一个神经模型的背景下进行解释的，该模型由对不同深度平面上不同运动方向有选择性反应的单元组成。
