Development of the response AC/A ratio over the first year of life

被引：31
|
作者：
Turner, JE [1 ]
Horwood, AM [1 ]
Houston, SM [1 ]
Riddell, PM [1 ]
机构：
[1] Univ Reading, Dept Psychol, Infant Vis Lab, Reading RG6 6AL, Berks, England
来源：
VISION RESEARCH | 2002年 / 42卷 / 22期
基金：
英国医学研究理事会;
关键词：
accommodation; vergence; accommodative-convergence; infant; photorefraction;
D O I：
10.1016/S0042-6989(02)00268-7
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
This study investigated the development of the link from accommodation to vergence in infants by occluding one eye thus removing binocular cues. Occluded adults continue to converge partially demonstrating that the accommodative drive to vergence (the AC/A link) and proximal cues are sufficient to drive vergence. For infants of all ages, AC/A ratios were found to be in the normal adult range. We conclude that infants can use monocular cues to drive vergence and that this occurs before the age when there is a substantial increase in the accuracy of oculomotor processes. There is flexibility in the developing visual system which is able to produce early vergence responses by relying upon alternative cues. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2521 / 2532
页数：12
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