On the preservation of syntax in Alzheimer's disease: Evidence from written sentences

Susan KEMPER, Emily LABARGE, F. Richard FERRARO, Hin Tat CHEUNG, Him CHEUNG, Martha STORANDT

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

We examined the syntactic complexity of single written sentences elicited from 368 adults undergoing examination for possible Alzheimer's disease. The clause length and composition of the sentences varied with the severity of dementia. The nondemented adults' sentences contained more propositions, main and secondary verbs, and conjunctions than those produced by the mildly and moderately demented adults. Sentence length in clauses, propositional content, and the use of conjunctions and main and secondary verbs discriminated among stages of the severity of the disease. The present results suggest that, while dementia severity affects written linguistic output, such output is, nonetheless, grammatic and coherent. Copyright © 1993 American Medical Association.

Original languageEnglish
Pages (from-to)81-86
JournalArchives of Neurology
Volume50
Issue number1
DOIs
Publication statusPublished - 1993

Fingerprint

Dementia
Alzheimer Disease
Linguistics
Syntax
Alzheimer's Disease
Clause
Verbs
Syntactic Complexity
Propositional Content
Sentence Length
Length

Citation

Kemper, S., LaBarge, E., Ferraro, F. R., Cheung, H., Cheung, H., & Storandt, M. (1993). On the preservation of syntax in Alzheimer's disease: Evidence from written sentences. Archives of Neurology, 50(1), 81-86. doi: 10.1001/archneur.1993.00540010075021