دانلود مقاله ISI انگلیسی شماره 113107
ترجمه فارسی عنوان مقاله

تجزیه و تحلیل عامل اکتشافی عملکرد بصری در یک جمعیت بزرگ

عنوان انگلیسی
An exploratory factor analysis of visual performance in a large population
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
113107 2017 14 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Vision Research, Volume 141, December 2017, Pages 303-316

پیش نمایش مقاله
پیش نمایش مقاله  تجزیه و تحلیل عامل اکتشافی عملکرد بصری در یک جمعیت بزرگ

چکیده انگلیسی

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.