周边光栅引起的检测阈值变化：对对比度和间距的依赖性。

Change in detection threshold caused by peripheral gratings: dependence on contrast and separation.

作者信息

Ejima Y, Miura K Y

出版信息

Vision Res. 1984;24(4):367-72. doi: 10.1016/0042-6989(84)90062-2.

Abstract

The detection threshold for a sinusoidal grating in the presence of peripheral gratings was determined as a function of peripheral-grating contrast and separation between the two gratings, with phase relation as a parameter. The result showed that the peripheral gratings, in the range of low contrast, yielded a facilitatory or an inhibitory effect dependent on the phase relation, but in the range of high contrast, yielded an inhibitory effect irrespective of the phase relation. This suggests that two separate mechanisms may underlie the grating induction effect of the detection threshold.

摘要

在存在周边光栅的情况下，将正弦光栅的检测阈值确定为周边光栅对比度和两个光栅之间间距的函数，并将相位关系作为参数。结果表明，在低对比度范围内，周边光栅根据相位关系产生促进或抑制作用，但在高对比度范围内，无论相位关系如何都会产生抑制作用。这表明，检测阈值的光栅诱导效应可能有两种不同的机制作为基础。