Williams D W, Wilson H R, Cowan J D
J Opt Soc Am. 1982 Jul;72(7):878-87. doi: 10.1364/josa.72.000878.
The spatially localized threshold-elevation aftereffect of spatial-frequency adaptation was measured by using localized, aperiodic test patterns that have bandpass Fourier transforms. At a given retinal location, the threshold-elevation curves are consistent with the fatigue of size-turned mechanisms with center-surround sensitivity profile. Only a few different sizes of such mechanisms were required to fit the local results. The local aftereffect was also measured as a function of eccentricity near the fovea. The results indicate that the threshold-elevation aftereffect of spatial-frequency adaptation is not spatially homogeneous.
通过使用具有带通傅里叶变换的局部非周期性测试图案，测量了空间频率适应后的空间局部阈值升高后效应。在给定的视网膜位置，阈值升高曲线与具有中心-外周敏感度分布的大小转换机制的疲劳相一致。仅需要几种不同大小的此类机制就能拟合局部结果。还测量了中央凹附近作为偏心率函数的局部后效应。结果表明，空间频率适应的阈值升高后效应在空间上并非均匀的。
