Bourdy C, Cottin F, Monot A
Laboratoire de Physique, Muséum National d'Histoire Naturelle, Paris, France.
Ophthalmic Physiol Opt. 1991 Oct;11(4):340-9.
Studying binocular vergence in relation to luminance levels, we isolated two types of behaviour which may explain differences in distance appreciation: 1. Underestimation of distances in subjects with overconvergence in darkness. 2. Overestimation of distances in subjects with underconvergence in darkness. Progression towards the limiting value of convergence varies from one individual to another for each mesopic and scotopic luminance level and for different experimental conditions: variable discrepancy between the observation distance and the tonic vergence distance; accommodative or fusional stimuli at varying degrees of eccentricity; mobile stimuli in the observer's peripheral field. The study of bipartition in depth of a given interval for different observation distances confirms the existence of two major categories of individuals. Over- or underestimation of the nearer subjective half correlates to the binocular dark convergence capacity of each individual. These findings may explain errors in distance appreciation for road users in night vision.
在研究与亮度水平相关的双眼聚散时，我们分离出了两种可能解释距离感知差异的行为类型：1. 在黑暗中过度聚散的受试者对距离估计不足。2. 在黑暗中聚散不足的受试者对距离估计过高。对于每个中间视觉和暗视觉亮度水平以及不同的实验条件，向聚散极限值的进展因人而异：观察距离与静息聚散距离之间的可变差异；不同偏心率下的调节或融合刺激；观察者周边视野中的移动刺激。对不同观察距离下给定区间深度二分法的研究证实了存在两大类个体。对较近主观半区间的高估或低估与每个个体的双眼暗聚散能力相关。这些发现可能解释了道路使用者在夜间视觉中距离感知的误差。
