Westermann, G and Willshaw, David and Penke, M (1999) A constructivist neural network model of German verb inflection in agrammatic aphasia. In: Ninth International Conference on Artificial Neural Networks (ICANN99). INST ELECTRICAL ENGINEERS INSPEC INC, Edison, pp. 916-921. ISBN 0-85296-721-7
We present a constructivist neural network that closely models the performance of agrammatic aphasics on German participle inflection. The network constructs a modular architecture leading to a double dissociation between regular and irregular verbs, and lesioning the trained network accounts for data obtained from aphasic subjects . We analyze the internal structure of the network with respect to the representation of regular and irregular verbs and argue that the constructivist neural network presents a more plausible account of verb inflection than a recently proposed dual-mechanism theory.
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