Paired Associate Learning: Age Differences
The issue of age related differences in performance during the acqusition phase of a paired associate learning task is discussed within the framework of a precise mathematical tool. A two-stage, four-state Markov model is employed to analyze the data sets from two age groups consisting of 24 subjects each. The relative efficiencies of the acqusition processes of the younger and the older groups of adults are reflected in the different values of parameters. (These values were obtained by optimizing the fit of the model to the two data sets). The two major findings are: (i) the younger adults form associations (even temporary ones more easily) and (ii) these associations tend to decay less quickly, again in the younger adults. The results speak against the general decrement hypothesis, allthough further investigation is needed.