The acuity card procedure: a rapid test of infant acuity.
The acuity card procedure: a rapid test of infant acuity.
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DOI：
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发表时间：
1985-08
影响因子：
4.4
通讯作者：
M. mcDonald;V. Dobson;S. Sebris;L. Baitch;D. Varner;D. Teller
中科院分区：
文献类型：
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作者：
M. mcDonald;V. Dobson;S. Sebris;L. Baitch;D. Varner;D. Teller
用于测试婴儿敏锐度的强制选择优先观察 (FPL) 和操作优先观察 (OPL) 程序通常需要 15-45 分钟才能得出敏锐度估计值。本文提出了一种新的视力评估技术（“视力卡”），它将 FPL/OPL 刺激与观察者对婴儿观看行为的主观评估相结合。向婴儿展示一系列灰卡，其中包含各种空间频率的光栅目标。观察者观察婴儿的眼球运动模式和行为，并判断婴儿是否能看到该系列中每张卡片上的光栅。敏锐度被估计为观察者判断婴儿能够看到的最高空间频率。通过这项技术，可以在实验室环境中在 3-5 分钟内以合理的精度估计正常婴儿的双眼视力。
Forced-choice preferential looking (FPL) and operant preferential looking (OPL) procedures for testing infant acuity typically require 15-45 min to derive an acuity estimate. This article presents a new acuity assessment technique ("acuity cards") that combines FPL/OPL stimuli with an observer's subjective assessment of an infant's looking behavior. The infant is shown a series of gray cards that contain grating targets of various spatial frequencies. An observer watches the eye movement patterns and behavior of the infant and judges whether the infant can or cannot see the grating on each card in the series. Acuity is estimated as the highest spatial frequency that the observer judges the infant to be able to see. With this technique, the binocular acuity of normal infants can be estimated with reasonable accuracy in the laboratory setting in 3-5 min.