Department of Psychology, Purdue University, 47907, West Lafayette, Indiana.
Mem Cognit. 1977 Mar;5(2):167-76. doi: 10.3758/BF03197359.
Experiments examining the issue of decay in short-term memory have assumed a single undifferentiated source of processing capacity which cannot be devoted to rehearsal when consumed in the processing of a nonverbal interpolated task. Three experiments reported here call this logic into question, since variations in difficulty in the nonverbal interpolated task failed to affect recall. Slight forgetting produced by a nonverbal interpolated task, relative to a no interpolated task control, was attributed to qualitative differences from performing two tasks simultaneously rather than only one. Results from the third experiment indicated that retrieval after a period of nonverbal interpolated activity is from primary rather than secondary memory.
实验研究了短期记忆衰退的问题，假设处理能力只有一个单一的、未分化的来源，当处理非言语插入任务时，这个来源就无法用于复述。这里报告的三个实验对这一逻辑提出了质疑，因为非言语插入任务的难度变化并没有影响回忆。与没有插入任务控制的情况相比，非言语插入任务导致的轻微遗忘归因于同时执行两项任务而不是仅执行一项任务的质的差异。第三个实验的结果表明，在非言语插入活动一段时间后进行检索是从主存储器而不是从辅助存储器中进行的。
