Visual acuity for vertical and diagonal gratings in human infants.
Visual acuity for vertical and diagonal gratings in human infants.
复制标题
人类婴儿垂直和对角光栅的视力。
DOI：
10.1016/0042-6989(74)90018-2
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发表时间：
1974
期刊：
影响因子：
1.8
通讯作者：
D. Regal
中科院分区：
文献类型：
--
作者：
D. Teller;Ralph Morse;R. Borton;D. Regal
本文描述了一种用于人类婴儿的两种选择强迫选择心理物理方法的发展。这项技术的本质（见Fantz， 1965,1967）是，在每次试验中，一个成年观察者必须通过观察婴儿的眼睛和头部运动，在两种可能的位置中陈述一个锐度目标。观察者对几个敏锐目标的正确反应百分比被绘制出来，以产生心理测量函数。该技术用于测试1至6个月大的婴儿对垂直和对角线锐度光栅的表现。20个心理测量功能，从8个单独的婴儿在两个照明水平积累，并在一个婴儿纵向系列，提出。这些数据是有序的，并揭示了随着年龄的增长，表现越来越好的趋势。在两个不同方向存在光栅时产生的心理测量函数之间没有发现差异。这些结果与早期的数据进行了比较，在早期的数据中，视力的定向差异已被证明存在于人类成年人中。本文还讨论了这些结果与取向敏锐度差异发展的关系。
The present paper describes the development of a two-alternative forced-choice psychophysical method for use with human infants. The essence of the technique (see Fantz, 1965, 1967) is that an adult observer must, on each trial, state in which of two possible positions an acuity target is presented, by observing only the infant's eye and head movements. The per cent correct responses of the observer, for each of several acuity targets, are plotted to yield psychometric functions.The technique was used to test the performance of infants between 1 and 6 months of age, toward vertical and diagonal acuity gratings. Twenty psychometric functions, accumulated from a total of 8 individual infants at two illumination levels, and a longitudinal series on one infant, are presented. The data are orderly and reveal trends toward better performance with increasing age.No differences were found between psychometric functions generated in the presence of gratings in the two different orientations. The results are compared to earlier data in which orientational differences in acuity have been shown to exist in human adults. The implications of the results are discussed in relation to the development of orientational acuity differences.