Wright A A, Santiago H C, Sands S F
J Exp Psychol Anim Behav Process. 1984 Oct;10(4):513-29.
Three rhesus monkeys were trained and tested in a same/different task with six successive sets of 70 item pairs to an 88% accuracy on each set. Their poor initial transfer performance (55% correct) with novel stimuli improved dramatically to 85% correct following daily item changes in the training stimuli. They acquired a serial-probe-recognition (SPR) task with variable (1-6) item list lengths. This SPR acquisition, although gradual, was more rapid for the monkeys than for pigeons similarly trained. Testing with a fixed list length of four items at different delays between the last list item and the probe test item revealed changes in the serial-position function: a recency effect (last items remembered well) for 0-s delay, recency and primacy effects (first and last list items remembered well) for 1-, 2-, and 10-s delays, and only a primacy effect for the longest 30-s delay. These results are compared with similar ones from pigeons and are discussed in relation to theories of memory processing.
三只恒河猴接受了相同/不同任务的训练和测试，该任务有六组连续的70个项目对，每组的准确率达到88%。它们最初对新刺激的转移表现较差（正确率为55%），但在训练刺激中每天更换项目后，正确率大幅提高到85%。它们学会了具有可变（1 - 6）项目列表长度的序列探测识别（SPR）任务。这种SPR任务的习得虽然是渐进的，但猴子比接受类似训练的鸽子学得更快。在最后一个列表项目和探测测试项目之间的不同延迟下，用固定的四个项目列表长度进行测试，揭示了序列位置函数的变化：0秒延迟时有近因效应（最后几个项目记忆良好），1秒、2秒和10秒延迟时有近因和首因效应（列表的第一个和最后一个项目记忆良好），而在最长的30秒延迟时只有首因效应。这些结果与鸽子的类似结果进行了比较，并结合记忆处理理论进行了讨论。
