Noss R S
Division of Neurobiology, University of California, Berkeley 94720.
Vision Res. 1994 Feb;34(4):497-510. doi: 10.1016/0042-6989(94)90163-5.
A method for measuring the variation of one stimulus parameter with respect to another is applied to show how line intensity affects the perceived tilt of lines, internal angle of chevrons, and curvature of circular arcs. Perceived curvature increased with increasing line intensity, but analogous effects were found only for obtuse chevrons, not for acute ones, suggesting a limit to the range of orientations which contribute to the processing of curvature. The absence of a clear trend for tilted lines and acute angles highlights the specificity of the curvature findings. Explanations based on a computer model and other psychophysical and single-unit studies are examined.
一种用于测量一个刺激参数相对于另一个刺激参数变化的方法被应用于展示线强度如何影响线的感知倾斜度、V形的内角以及圆弧的曲率。感知到的曲率随着线强度的增加而增加，但类似的效应仅在钝角V形中被发现，在锐角V形中未发现，这表明有助于曲率处理的方向范围存在限制。倾斜线和锐角缺乏明显趋势突出了曲率研究结果的特异性。基于计算机模型以及其他心理物理学和单细胞研究的解释也得到了检验。
