Norman J Farley, Norman Hideko F, Swindle Jessica M, Jennings L RaShae, Bartholomew Ashley N
Department of Psychology, 1906 College Heights Blvd. #21030, Western Kentucky University, Bowling Green, Kentucky 42101-1030, USA.
Perception. 2009;38(9):1347-54. doi: 10.1068/p6367.
A single experiment was carried out to evaluate the ability of younger and older observers to discriminate object weights. A 2-alternative forced-choice variant of the method of constant stimuli was used to obtain difference thresholds for lifted weight for twelve younger (mean age = 21.5 years) and twelve older (mean age = 71.3 years) adults. The standard weight was 100 g, whereas the test weights ranged from 85 to 115 g. The difference thresholds of the older observers were 57.6% higher than those of the younger observers: the average difference thresholds were 10.4% and 6.6% of the standard for the older and younger observers, respectively. The current findings of an age-related deterioration in the ability to discriminate lifted weight extend and disambiguate the results of earlier research.
进行了一项单一实验，以评估年轻和年长观察者辨别物体重量的能力。采用恒定刺激法的二项迫选变体，来获取12名年轻成年人（平均年龄 = 21.5岁）和12名年长成年人（平均年龄 = 71.3岁）举起重量的差异阈值。标准重量为100克，而测试重量范围为85至115克。年长观察者的差异阈值比年轻观察者高57.6%：年长和年轻观察者的平均差异阈值分别为标准重量的10.4%和6.6%。目前关于辨别举起重量能力随年龄下降的研究结果，扩展并明确了早期研究的结果。
