An exploratory factor analysis of visual performance in a large population
JM Bosten, PT Goodbourn, G Bargary, RJ Verhallen, AJ Lawrance-Owen, RE Hogg, JD Mollon
Vision Research | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2017
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) st..View full abstract
Awarded by Gatsby Charitable Foundation
This work was supported by the Gatsby Charitable Foundation (GAT2903). J.B. was supported by a fellowship from Gonville and Caius College. The authors are grateful to Horace Barlow, Roger Freedman, Graeme Mitchison and Richard Durbin for their role in the initiation of the PERGENIC project. We thank David Peterzell and Michael Herzog for their valuable comments as reviewers.