Chromaticity, spatial complexity, and self-motion perception
Chromaticity, spatial complexity, and self-motion perception
复制标题
DOI：
10.1068/p5062
复制
发表时间：
2006-01-01
期刊：
影响因子：
1.7
通讯作者：
Bubka, A
中科院分区：
文献类型：
--
作者：
Bonato, F;Bubka, A
通过将观察者置于一个大的旋转圆筒（视动鼓）中，研究了视野颜色和空间复杂性对自我运动知觉的影响。在视动-鼓条件下，视觉诱导的自运动（向量）通常在30秒内被感知，即使所有形式的感觉输入（例如前庭，本体感受，听觉），除了视觉，表明观察者是静止的。有人假设，通过向视动性鼓的衬里添加彩色颜色和空间复杂性，将加速矢量化并且矢量化幅度增加。这些视野特征的添加导致与我们的典型环境共享更多视野特征的阵列，该典型环境通常用作关于自我运动感知的稳定参考框架。在颜色实验中，参与者看到的垂直条纹是：（i）黑色和白色，（ii）各种灰色阴影，或（iii）彩色。在空间复杂性实验中，参与者被呈现：（i）白色垂直条纹，或（ii）白色棋盘图案。滚筒旋转速度为5转/分（-1）（30度/秒（-1）），并且在60秒试验中测量了矢量起始和幅度。结果表明，色度和空间复杂性加速了向量的发生，并增加了其感知幅度。色度和空间复杂性是我们视觉系统进化环境的共同特征。这些视野特征在光流图案中的存在可以被视为被观看的场景是静止的并且观察者是移动的指示器。
The effects of visual field color and spatial complexity on self-motion perception were investigated by placing observers inside a large rotating cylinder (optokinetic drum). Under optokinetic-drum conditions visually induced self-motion (vection) is typically perceived within 30 s, even though all forms of sensory input (eg vestibular, proprioceptive, auditory), except vision, indicate that the observer is stationary. It was hypothesized that vection would be hastened and vection magnitude increased by adding chromatic colors and spatial complexity to the lining of an optokinetic drum. Addition of these visual-field characteristics results in an array that shares more visual-field characteristics with our typical environment that usually serves as a stable frame of reference regarding self-motion perception. In the color experiment, participants viewed vertical stripes that were: (i) black and white, (ii) various gray shades, or (iii) chromatic. In the spatial complexity experiment, participants were presented with: (i) black-and-white vertical stripes, or (ii) a black-and-white checkerboard pattern. Drum rotation velocity was 5 rev. min(-1) (30 degrees s(-1)), and both vection onset and magnitude were measured for 60 s trials. Results indicate that chromaticity and spatial complexity hasten the onset of vection and increase its perceived magnitude. Chromaticity and spatial complexity are common characteristics of the environments in which our visual system evolved. The presence of these visual-field features in an optic flow pattern may be treated as an indicator that the scene being viewed is stationary and that the observer is moving.