Freeman A W, Jolly N
Department of Biological Sciences, Faculty of Health Sciences, University of Sydney, Lidcombe, NSW, Australia.
Vision Res. 1994 Aug;34(15):2043-50. doi: 10.1016/0042-6989(94)90032-9.
Visual acuity was measured in one eye during monocular vision, and while the fellow eye viewed stimuli not including the acuity target. The aim was to find how acuity in one eye is reduced by going from monocular to binocular viewing. In normal subjects, acuity was at its lowest during the suppressive phase of binocular rivalry, was reduced less when the fellow eye viewed a contoured nonrivalrous stimulus, and was not reduced at all when the stimulus to the fellow eye consisted of a uniformly lit field. In strabismic subjects, by contrast, acuity was markedly reduced in going from monocular to binocular viewing no matter what stimulus was viewed by the fellow eye. Pathological suppression is therefore largely independent of the inducing stimulus. It was also shown that acuity in the nonstrabismic eye of some of the strabismic subjects was improved by allowing the strabismic eye to view; these were the subjects with the greatest depths of amblyopia.
在单眼视觉期间测量一只眼睛的视力，同时另一只眼睛观看不包括视力测试目标的刺激物。目的是找出从单眼观看变为双眼观看时一只眼睛的视力是如何降低的。在正常受试者中，视力在双眼竞争的抑制阶段最低，当另一只眼睛观看有轮廓的非竞争刺激物时视力降低较少，而当另一只眼睛的刺激物是均匀照亮的视野时视力根本不会降低。相比之下，在斜视受试者中，无论另一只眼睛观看何种刺激物，从单眼观看变为双眼观看时视力都会显著降低。因此，病理性抑制在很大程度上与诱发刺激无关。还表明，让斜视眼观看可改善一些斜视受试者非斜视眼的视力；这些受试者的弱视程度最深。
