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November 1992

Agraphia in Dementia of the Alzheimer Type

Author Affiliations

From the Department of Neurology and Neurological Surgery (Dr LaBarge), Division of Biostatistics (Dr Smith), and Department of Psychology (Ms Dick and Dr Storandt), Washington University, St Louis, Mo.

Arch Neurol. 1992;49(11):1151-1156. doi:10.1001/archneur.1992.00530350065021

• This study describes graphic errors made in writing a simple sentence in 368 healthy older adults and individuals in different stages of dementia of the Alzheimer type. Errors of agraphia were present in both healthy and demented people and, in general, increased with the severity of dementia. The errors of agraphia were not correlated with measures of aphasia or psychometric measures of language and motor performance. Writing skill may represent procedural memory, and agraphia errors indicate alterations in long-term memory in dementia of the Alzheimer type.

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