文章基本信息

标题：高齢者の視覚の色度空間周波数特性および時間周波数特性
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作者：磯野春雄 ; 倉田晃二 ; 山田千彦等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2003
卷号：57
期号：12
页码：1697-1702
DOI：10.3169/itej.57.12_1697
出版社：The Institute of Image Information and Television Engineers
摘要：Elderly people tend to perceive color as more yellowish than younger people do, and their ability to discriminate between blueish colors deteriorates as they grow older. This paper describes measurements of visual chromatic spatial and temporal frequency responses in subjects aged 60 to 75 years old to gain a better understanding of age-related changes in color perception and to clarify some differences between young and elderly people. We found that visual chromatic spatial and temporal frequency responses to ayellow-blue (dominant wavelength : 565-445 nm) stimulus were significantly reduced in comparison with those to a red-green (495 nm and its conjugate) stimulus. The results suggest that weakened optical functions in the eye and in the power to send visual signals from the retina to the nervous system are likely causes of this deterioration of color -contrast sensitivity.
关键词：高齢者;色覚;加齢効果;空間周波数特性;時間周波数特性