Lexical Agraphia in Alzheimer's Disease

Steven Z. Rapcsak, Susan A. Arthur, David A. Bliklen, Alan B. Rubens

Research output: Contribution to journalArticle

65 Scopus citations

Abstract

We studied spelling in 11 patients with senile dementia of the Alzheimer type (SDAT), and their performance was contrasted with that of normal controls. A consistent and specific pattern of linguistic agraphia was identified in the group with SDAT. Although patients with SDAT spelled regular words and nonwords as well as controls, they performed significantly worse when they spelled irregular words. These findings indicated an impairment of the lexical spelling system, consistent with the diagnosis of lexical agraphia. Our observations suggested a loss of word representations from the orthographic lexicon in SDAT and/or an inability to access these representations. However, phonological spelling (phoneme-grapheme conversion) was largely spared.

Original languageEnglish (US)
Pages (from-to)65-68
Number of pages4
JournalArchives of Neurology
Volume46
Issue number1
DOIs
StatePublished - Jan 1989

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Clinical Neurology

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