The effect of experience on the detection of small eye movements

The effect of experience on the detection of small eye movements
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DOI:
10.1097/00006324-200012000-00014
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发表时间:
2000-12-01
影响因子:
1.4
通讯作者:
Good, G
Good, G
中科院分区:
医学4区
文献类型:
--
作者:
Fogt, N;Baughman, B;Good, G

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目的:本研究的目的是确定在理想条件下,经验是否能提高对小眼球运动的检测,类似于在掩蔽测试中看到的小眼球运动。方法:对三组具有不同眼动检测任务经验的考官进行研究。8名验光师为一年级学生,6名为四年级学生,6名为执业验光师。为了确定眼球运动检测的阈值,考官指出了其中一个实验者眼睛运动的水平方向。每个眼球运动的方向和程度是随机选择的。眼动的程度是一个右对数的步骤,从一个最大值,是通过初步会议确定的近似灵敏度(一般+/- 1.75棱镜屈光度)。结果:用累积高斯函数拟合数据确定检测阈值。获得99%正确判断所需的平均水平眼动,一年级学生为2.65棱镜屈光度,四年级学生为2.47棱镜屈光度,执业验光师为2.40棱镜屈光度。结论:结果表明,在理想条件下,很少或不需要训练就能有效检测小眼动。[j] .光学学报,2000;77:667 -674。
Purpose: The purpose of this study was to determine whether experience improves detection of small eye movements similar to those seen in the cover test during ideal conditions. Methods: Three groups of examiners with varying amounts of experience in eye movement detection tasks were studied. Eight examiners were 1st-year optometry students, six were 4th-year optometry students, and six were practicing optometrists. To determine thresholds for eye movement detection, examiners indicated the horizontal direction in which the eyes of one of the experimenters moved. The direction and extent of each eye movement was randomly selected. The extent of the eye movement was one of Right logarithmic steps from a maximum that was determined through an initial session where the approximate sensitivity of the examiners was found (generally +/- 1.75 prism diopters). Results: Detection thresholds were determined by fitting the data with a cumulative Gaussian function. The mean horizontal eye movement eye movement necessary to obtain 99% correct judgments was 2.65 prism diopters for the 1st-year students, 2.47 prism diopters for the 4th-year students, and 2.40 prism diopters for the practicing optometrists, Conclusions: The results indicate that during ideal conditions, little or no training is required for efficient detection of small eye movements. (Optom Vis Sci 2000;77:670-674).