文章基本信息

标题：Relative luminance and figure-background segmentation problems: Using AMLA to avoid nondiscernible stimulus pairs in common and color blind observers
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作者：Julio Lillo Jover ; Humberto Moreira
期刊名称：Psicológica
印刷版ISSN：0211-2159
电子版ISSN：1576-8597
出版年度：2005
卷号：26
期号：1
页码：189-207
语种：English
出版社：Universitat de València
其他摘要：Four experiments evaluated AMLA temporal version accuracy to measure relative luminosity in people with and without color blindness and, consequently, to provide the essential information to avoid poor figurebackground combinations in any possible specific screen-specific observer pair. Experiment 1 showed that two very different apparatus, a sophisticated photometer and a common luxometer, provide equivalent measurements to compute: (1) screen gamma exponents and (2) relative luminance (Y/Yn) of achromatic but not of chromatic stimuli. Experiments 2, 3 and 4 showed that the psychophysical task of AMLA temporal version provided, for any stimulus type, accurate relative luminance measurements. They were: equivalent to standardised photometric measurements for common observers (Experiment 2); similar to the expected distortions for simulated (Experiment 2) and real (Experiment 3) aged tritanomalous observers; concordant with the expected distortions of protanope observers (Experiment 4).