change.

In many cases, a stroke to certain areas of the left hemisphere and, in some cases, a stroke to areas in the right hemisphere causes severe disturbances of the capacity to produce and/or understand language. These disturbances are known as aphasia and are classically divided in different types (for example, Broca’s aphasia, Wernicke’s aphasia, ano-mia, conduction aphasia) on the basis of different sets of symptoms. Serious research on aphasia started with the famous address by Paul Broca before the Anthropological Society of Paris in 1861, in which he argued on the basis of anatomical and behavioral evidence from his patient Lebourgne that the frontal lobes are the seat of the ‘faculty of articulate language’. For more than a century, aphasia research has been dominated by neurologists, mainly interested in the clinico-pathological aspects of the relation between language and the brain. In the last decade, however, aphasiology has undergone the growing influence of linguistics and psycholinguistics. Linguistic theories and psycholinguistic researc