Parkinson S R, Perey A
J Gerontol. 1980 Sep;35(5):736-42. doi: 10.1093/geronj/35.5.736.
The first experiment showed that the amount of interference resulting from an extra auditory stimulus (stimulus suffix) placed at the end of a list of to-be-remembered items varied inversely with digit span in a sample of college students. In the second experiment suffix effects for a group of old subjects were of similar magnitude to those of young subjects with comparable spans. These results, along with others from our laboratory, indicate that explication of much of the influence of aging on short-term memory tasks reduces to factors determining memory span.
第一个实验表明，在一组大学生样本中，置于待记忆项目列表末尾的额外听觉刺激（刺激后缀）所产生的干扰量与数字广度成反比。在第二个实验中，一组老年受试者的后缀效应与跨度相当的年轻受试者的后缀效应大小相似。这些结果，连同我们实验室的其他结果表明，对衰老对短期记忆任务的大部分影响的解释可归结为决定记忆广度的因素。
