Douthwaite W A, Jenkins T C, Taylor A J
School of Studies in Optometry, University of Bradford, West Yorkshire, England.
Am J Optom Physiol Opt. 1987 Dec;64(12):888-96. doi: 10.1097/00006324-198712000-00002.
A pattern reversal stimulus (check size 5.5 min arc) was used to elicit visually evoked responses (VER's). The peak to trough amplitude of the VER wave was measured and compared to the subjective visual acuity (Landolt C) in 30 subjects. The recordings were made at 3, 6, and 12 pattern reversals per s. The correlation coefficients are reasonably high (r = 0.81) for both the 3 and 6 reversal rates with a considerably lower correlation coefficient (r = 0.54) for the 12 reversals per s stimulus. Repeatability measurements on a further 6 subjects taken over a 5-week period produced an amplitude coefficient of variation of 13% for the 6 subjects with the 3 reversals per s stimulus.
使用模式反转刺激（方格大小5.5分视角）来诱发视觉诱发电位（VER）。测量了30名受试者VER波的峰谷振幅，并将其与主观视力（Landolt C）进行比较。记录分别在每秒3次、6次和12次模式反转时进行。每秒3次和6次反转率时的相关系数相当高（r = 0.81），而每秒12次反转刺激时的相关系数则低得多（r = 0.54）。对另外6名受试者在5周内进行的重复性测量显示，对于每秒3次反转刺激的6名受试者，振幅变异系数为13%。
