The Nature of Naming Errors in Primary Progressive Aphasia Versus Acute Post-Stroke Aphasia

Maggi A. Budd, Kathleen Kortte, Lauren Cloutman, Melissa Newhart, Rebecca F. Gottesman, Cameron Davis, Jennifer Heidler-Gary, Margaret W. Seay, Argye E. Hillis

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: To compare the distribution of error types across subgroups of primary progressive aphasia and poststroke aphasia in different vascular locations. Method: We analyzed naming errors in 49 individuals with acute left hemisphere ischemic stroke and 55 individuals with three variants of primary progressive aphasia. Location of atrophy or ischemic stroke was characterized using MRI. Results: We found that distribution of error types was very similar across all subgroups, irrespective of the site or etiology of the lesion. The only significant difference across groups was the percentage of circumlocutions (F(7, 96) = 3.02, p = .005). Circumlocution errors were highest among logopenic variant PPA (24%) and semantic variant PPA (24%). Semantic coordinate errors were common in all groups, probably because they can arise from disruption of different cognitive processes underlying naming and, therefore, from different locations of brain damage. Conclusions: Semantic errors are common among all types of primary progressive aphasia and poststroke aphasia, and the type of error depends in part on the location of damage.

Original languageEnglish (US)
Pages (from-to)581-589
Number of pages9
JournalNeuropsychology
Volume24
Issue number5
DOIs
StatePublished - Sep 2010

Keywords

  • Naming errors
  • Primary progressive aphasia
  • Stroke aphasia

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology

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