A Computational PDP Model for Explaining Automatic Imitation


Recent evidence suggests that automatic imitation is mediated by an observation-execution matching system that cannot be reduced to the same processes responsible for other stimulus-response (S-R) compatibilities. A computational model is developed with different patterns of connectivity for imitative and spatial compatibilities, and it is successful in simulating the results from three different S-R tasks. Variations of the model with identical connections for mediating the two compatibilities reveal a significantly poorer fit. These results provide converging evidence that imitative and spatial compatibilities are mediated by different processes.

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