We present a neural network model of learning and processing the English past tense that is based on the notion that experience-dependent cortical development is a core aspect of cognitive development. During learning the model adds and removes units and connections to develop a task-specific final architecture. The model provides an integrated…

Karlik and Karlik provide a personal account of loss of literacy after a stroke and the laborious process of recovering it. Parr shows how she adapted diagnostic tools from literacy research to use with adults with aphasia. (SK)