Zeki S, Moutoussis K
Wellcome Department of Cognitive Neurology, University College London, UK.
Proc Biol Sci. 1997 Oct 22;264(1387):1415-9. doi: 10.1098/rspb.1997.0197.
Our earlier psychophysical work has shown that colour and motion are not perceived at the same time, with colour leading motion by about 50-100 ms. In pursuing this work, we thought it would be interesting to use a more complex colour stimulus, one in which the wavelength composition of the light reflected or emitted from surfaces changes continually, without entailing a change in the perceived colour (colour constancy). We therefore used a Mondrian figure--an abstract multi-coloured scene with no recognizable objects--against which squares (either red or green) moved up and down, changing colour from red to green in various phase differences with the change in direction of motion. The red and green squares changed continually in their spectral characteristics, as did every other patch on the Mondrian. The results showed that colour is still perceived before motion, by about 80 ms.
我们早期的心理物理学研究表明，颜色和运动并非同时被感知，颜色比运动领先约50 - 100毫秒。在继续这项研究时，我们认为使用更复杂的颜色刺激会很有趣，即表面反射或发射的光的波长组成不断变化，但感知颜色不变（颜色恒常性）的刺激。因此，我们使用了一个蒙德里安图形——一个没有可识别物体的抽象多色场景——在其背景下，正方形（红色或绿色）上下移动，在运动方向改变时以各种相位差从红色变为绿色。红色和绿色正方形的光谱特征不断变化，蒙德里安图形上的其他每个色块也是如此。结果表明，颜色仍然比运动先被感知，大约领先80毫秒。
