Motion integration is anisotropic during smooth pursuit eye movements

Four movies showing of how motion coherence depends on the direction of smooth pursuit eye movements. We used a multiple-aperture array, with drift speeds being attributed to correspond to (100% coherence) to a single global motion direction or randomly to some proportion.Participant's task is to track the black dot and discriminate between upward or downward motion of the surrounding. All movies show global motion that is a slightly downward from horizontal. The elements are low contrast(necessary for motion to cohere) and therefore may only be visible in full screen mode or close to the screen.Movie 1: Global motion (50% coherent) opposite to the motion of the pursuit target (black dot) Movie 2: Global motion (100% coherent) opposite to the motion of the pursuit target (black dot) Movie 3: Global motion (50% coherent) in the direction of the pursuit target (black dot) Movie 4: Global motion (100% coherent) in the direction of the the pursuit target (black dot)本数据集包含四部视频，用于展示运动相干性（motion coherence）随平滑追踪眼动（smooth pursuit eye movements）方向变化的依赖关系。本研究采用多孔径阵列（multiple-aperture array），将视觉元素的漂移速度设置为：100%相干性的元素沿单一全局运动（global motion）方向运动，其余比例的元素则随机分配运动方向。被试的任务为追踪画面中的黑色圆点，并判断周围视觉元素的运动方向为向上还是向下。所有视频中的全局运动方向均为略低于水平方向的向下运动。视觉元素均采用低对比度设置（这是运动相干性形成的必要条件），因此仅可在全屏模式或近距离观看时清晰辨识。 视频1：全局运动相干性为50%，且运动方向与追踪目标（黑色圆点）的运动方向相反 视频2：全局运动相干性为100%，且运动方向与追踪目标（黑色圆点）的运动方向相反 视频3：全局运动相干性为50%，且运动方向与追踪目标（黑色圆点）的运动方向一致 视频4：全局运动相干性为100%，且运动方向与追踪目标（黑色圆点）的运动方向一致