An exploratory factor analysis of visual performance in a large population
An exploratory factor analysis of visual performance in a large population
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DOI：
10.1016/j.visres.2017.02.005
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发表时间：
2017-12-01
期刊：
影响因子：
1.8
通讯作者：
Mollon, J. D.
中科院分区：
文献类型：
--
作者：
Bosten, J. M.;Goodbourn, P. T.;Mollon, J. D.
对 1060 名参与者的 25 项视觉和听觉表现指标进行了因子分析。结果揭示了与一般知觉表现相关的一个因素以及与特定知觉技能相关的八个独立因素的证据。在未旋转的 PCA 中，感知性能的一般因素占 25 个性能指标总方差的 19.9%。在最大方差旋转之后，确定了 8 个一致的因素，这些因素似乎与 (1) 对中高空间频率的敏感性、(2) 听觉感知能力、(3) 动眼神经速度、(4) 动眼神经控制、(5) 低空间频率的对比敏感度、(6) 立体敏锐度、(7) 字母识别和 (8) 闪烁敏感度有关。层次聚类分析的结果与我们的旋转因子解决方案一致。我们还报告了八个绩效因素与其他（非绩效）感知测量、人口统计和解剖测量以及探讨其他心理变量的问卷项目之间的相关性。 (C) 2017 Elsevier Ltd. 保留所有权利。
A factor analysis was performed on 25 visual and auditory performance measures from 1060 participants. The results revealed evidence both for a factor relating to general perceptual performance, and for eight independent factors that relate to particular perceptual skills. In an unrotated PCA, the general factor for perceptual performance accounted for 19.9% of the total variance in the 25 performance measures. Following varimax rotation, 8 consistent factors were identified, which appear to relate to (1) sensitivity to medium and high spatial frequencies, (2) auditory perceptual ability (3) oculomotor speed, (4) oculomotor control, (5) contrast sensitivity at low spatial frequencies, (6) stereo acuity, (7) letter recognition, and (8) flicker sensitivity. The results of a hierarchical cluster analysis were consistent with our rotated factor solution. We also report correlations between the eight performance factors and other (non-performance) measures of perception, demographic and anatomical measures, and questionnaire items probing other psychological variables. (C) 2017 Elsevier Ltd. All rights reserved.