Language disorders in dementia as aphasia syndromes

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Abstract
Subsequent to a detailed review of the relationship between language disturbances in dementia and aphasia, Au, Albert and Obler proposed that language disorders in dementia be viewed as if they were variations of classical aphasia syndromes. They provided a convincing argument that such an approach would have three major benefits to those who study language disorders resulting from disease or injury of the brain. First, they pointed out that application of the techniques and findings of aphasia research have helped to expand knowledge of the processes which underlie language deficits in dementia. Second, viewed from the opposite perspective, they provided preliminary evidence that application of knowledge of pharmacosystems derived from studies of dementia to aphasia might create important new therapy techniques for the treatment of aphasia and add to our understanding of atypical aphasia syndromes. Finally, they suggested that, by combining research efforts on language disorders in dementia with equivalent research on aphasia, new insights into the neurobiology of language might be gained.

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