• 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.
LaBarge E, Smith DS, Dick L, Storandt M. Agraphia in Dementia of the Alzheimer Type. Arch Neurol. 1992;49(11):1151–1156. doi:10.1001/archneur.1992.00530350065021
Coronavirus Resource Center
Customize your JAMA Network experience by selecting one or more topics from the list below.