运动视觉信息中时间知觉线索的实验研究

A STUDY ON TIME-PERCEPTUAL CUES IN VISUAL MOTION INFORMATION

用两个实验考察在运动物体的时间知觉中影响ＴＴＣ判断的因素。结果表明，在物体视觉影像的扩张率不变（ｄ／ｄｔ＝０）的条件下，（１）时间知觉信息主要是距离、速度和加速度等物理信息，高阶视觉信息在时间判断中也起一定的作用，时间知觉线索是物理信息和视觉信息的统合。（２）时间判断中存在显著的性别差异，男性的判断准确性普遍高于女性。（３）当物体匀速运动时，判断ＴＴＣ与实际ＴＴＣ间的关系适合用线性模型来描述。

In this study two experiments were conducted to investigate factors affecting timeto contact judgment. The results showed that : When the rate of dilation of the opticalcontour of the moying object was constant (d / dt = 0), (1) The main time--perceptualinformation was distance, velocity and acceleration. In some way, visual informationPlayed a certain role in the judgment of bine to contact. Time--perceptual cues used tocontrol action were usually the results of combination of Physical information andvisUal information. (2) Time judgment showed significant gender effect men providedhigher and more accurate judgment than did women. (3) When the object moved inconstant velocity, a linear model was used to fit the dare obtained in TTC judgmentwhich could describe the relation between actual TTC and judged TTC.