6 A computational model of nonword repetition , immediate serial recall , and nonword learning

A computational model is presented that tackles the issue of serial ordering both across word forms (as in list recall) and within word forms (as in nonword repetition). The model was set up to simulate performance in these two tasks. A number of patterns of relationship between performance in these tasks then fell out of the model, including the well-documented correlation between performance in the two tasks, and the typical pro®le of impairment in the ``pure STM'' neuropsychological syndrome. The model thus provides a concretely instantiated means of thinking about relationships between list recall and nonword repetition, and has the potential to play a useful role in investigation of these relationships.