Amberson J I, Atkeson B M, Pollack R H, Malatesta V J
Exp Aging Res. 1979 Oct;5(5):423-33. doi: 10.1080/03610737908257217.
The threshold for the dark interval between two flashes was used to examine differences in stimulus persistence in 72 subjects aged 20 to 79 years. The data were then combined with results from two previous studies involving children and adolescents; thus, a cross sectional, adult, life-span view of differences in the dark-interval threshold was presented. Results showed that during childhood and adolescence there is a decline in stimulus persistence as a result of decreased receptor sensitivity. In adulthood, however, the dark-interval threshold remains fairly stable until the 70s where it increases significantly. Two possible explanations for this increase in stimulus persistence in old age are discussed.
使用两次闪光之间暗间隔的阈值来检测72名年龄在20至79岁之间的受试者在刺激持续方面的差异。然后将这些数据与之前两项涉及儿童和青少年的研究结果相结合；因此，呈现了一幅关于暗间隔阈值差异的横断面、成人、全寿命期的视图。结果显示，在儿童期和青少年期，由于感受器敏感性下降，刺激持续时间会缩短。然而，在成年期，暗间隔阈值在70岁之前一直相当稳定，之后会显著增加。文中讨论了老年期刺激持续时间增加的两种可能解释。
