Pure anarthria with predominantly sequencing errors in phoneme articulation: A case report

Kazuyo Tanji, Kyoko Suzuki, Atsushi Yamadori, Michio Tabuchi, Keiko Endo, Toshikatsu Fujii, Yasuto Itoyama

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A 77-year-old left-handed man presented with pure anarthria following cerebral infarction. The lesion was restricted to the right precentral gyrus extending to the immediately underlying subcortical white matter and the frontal part of the insular cortex. Qualitative analysis of anarthria revealed that half of the phonemic-articulatory errors in spontaneous speech were sequencing ones. Sequential errors were detected at the phoneme level in both consonants and vowels, and at the syllable level. Most of the sequential errors were pre-positioning. Sequential errors were observed both within and across words. In clear contrast with anarthria, writing and comprehension was preserved, which suggested the problem was limited to oral expression. Our findings provide further support that the precentral gyrus and/or the insular cortex of the language dominant hemisphere is responsible for the temporal sequencing of the articulatory programming.

Original languageEnglish
Pages (from-to)671-678
Number of pages8
JournalCortex
Volume37
Issue number5
DOIs
Publication statusPublished - 2001

Keywords

  • Articulatory sequencing
  • Insular cortex
  • Precentral gyrus
  • Pure anarthria

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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