Greenhouse D S, Bailey I L, Howarth P A, Berman S M
School of Optometry, University of California, Berkeley 94720.
Ophthalmic Physiol Opt. 1992 Jul;12(3):302-6.
We employed vertical sinusoidal test gratings to search for spatial adaptation to lower-case text presented on a standard video display terminal. The parameters of the contrast sensitivity test were selected on the basis of waveform analysis of horizontal spatial luminance profiles of the text. We found that subjects exhibited a small (4-5 dB), but significant, frequency-specific spatial adaptation consistent with the frequency spectrum of the stimulus. The theoretical and practical significance of this finding is discussed.
我们使用垂直正弦测试光栅来寻找对标准视频显示终端上呈现的小写文本的空间适应性。对比度敏感性测试的参数是根据文本水平空间亮度分布的波形分析来选择的。我们发现，受试者表现出一种微小的（4 - 5分贝）但显著的、与刺激频谱一致的频率特异性空间适应性。本文讨论了这一发现的理论和实际意义。
