The oblique effect in Chinese infants and adults
Fang, LL; Bauer, J; Held, R; Gwiazda, J
1997-10-01
发表期刊OPTOMETRY AND VISION SCIENCE
ISSN1040-5488
文章类型Article
卷号74期号:10页码:816-821
摘要Purpose. Lessened acuity for oblique contours as compared with horizontal and vertical contours, the oblique effect, is characteristic of humans and animals, The magnitude of the oblique effect in humans varies with ethnic origin, Three experiments were performed to determine the source and extent of this variation in Chinese and Caucasian subjects, Methods and Results, Experiment I, Acuity for vertical and oblique gratings was measured in Chinese infants with a preferential looking technique. The development of visual acuity for Chinese infants was found to be strikingly similar to that reported for Caucasian infants, For infants of both races at about 1 year of age, the magnitude of the oblique effect was about 1 octave, Experiment II. Acuity for main-axis (horizontal and vertical) and oblique gratings was measured in Chinese and Caucasian adults, The oblique effect in Chinese subjects was significantly smaller than in Caucasian subjects, The Chinese also had significantly better acuity for oblique gratings, but not for main-axis gratings, Experiment III, To determine whether differential sensitivity to main-axis and oblique-axis gratings extends to suprathreshold spatial frequencies, contrast sensitivity for four orientations at each of five spatial frequencies was assessed in Chinese and Caucasian adults, There were no significant differences in contrast sensitivity between Chinese and Caucasian subjects at any spatial frequency, The differential sensitivity increased with increasing spatial frequency for both ethnic groups, Conclusion, The difference in the magnitudes of the oblique effect in Chinese and Caucasian subjects appears in acuity thresholds in adults, and may result solely from the Chinese having better acuity for obliquely oriented gratings.
关键词oblique effect grating acuity contrast sensitivity Chinese ethnic differences
收录类别SCI
语种英语
WOS研究方向Ophthalmology
WOS类目Ophthalmology
WOS记录号WOS:A1997YF60900017
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]VISUAL-ACUITY ; ORIENTATION ANISOTROPY ; MERIDIONAL AMBLYOPIA ; ASTIGMATISM ; PERCEPTION ; VISION
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/26004
专题中国科学院心理研究所回溯数据库(1956-2010)
作者单位CHINESE ACAD SCI,INST PSYCHOL,BEIJING,PEOPLES R CHINA
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GB/T 7714
Fang, LL,Bauer, J,Held, R,et al. The oblique effect in Chinese infants and adults[J]. OPTOMETRY AND VISION SCIENCE,1997,74(10):816-821.
APA Fang, LL,Bauer, J,Held, R,&Gwiazda, J.(1997).The oblique effect in Chinese infants and adults.OPTOMETRY AND VISION SCIENCE,74(10),816-821.
MLA Fang, LL,et al."The oblique effect in Chinese infants and adults".OPTOMETRY AND VISION SCIENCE 74.10(1997):816-821.
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