The influence of semantic processing on odor identification ability in schizophrenia

Vidyulata Kamath, Bruce I. Turetsky, Sarah C. Seligman, Dana M. Marchetto, Jeffrey B. Walker, Paul J. Moberg

Research output: Contribution to journalArticle

Abstract

espite the well-documented observation of odor identification deficits in schizophrenia, less is known about where the disruption in the process of correctly identifying an odor occurs. This study aimed to determine the potential moderating effects of semantic processing on the observed olfactory dysfunction in schizophrenia. Schizophrenia patients and healthy comparison subjects completed two versions of the University of Pennsylvania Smell Identification Test (UPSIT): an uncued free-response version and the standard multiple-choice paradigm, as well as three semantic measures: The Boston Naming Test, Animal Naming, and Pyramids and Palm Tree Test. Schizophrenia patients yielded significantly lower scores than the comparison group on the standard UPSIT and on semantic measures. No relationship was observed between olfactory and semantic task performance in patients. These data suggest that odor identification deficits may not be primarily due to semantic processing deficits in schizophrenia.

Original languageEnglish (US)
Pages (from-to)254-261
Number of pages8
JournalArchives of Clinical Neuropsychology
Volume28
Issue number3
DOIs
StatePublished - May 2013

Keywords

  • Boston naming test
  • Olfaction
  • Olfactory
  • Schizophrenia
  • Semantic processing
  • Smell

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Clinical Psychology
  • Psychiatry and Mental health

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  • Cite this

    Kamath, V., Turetsky, B. I., Seligman, S. C., Marchetto, D. M., Walker, J. B., & Moberg, P. J. (2013). The influence of semantic processing on odor identification ability in schizophrenia. Archives of Clinical Neuropsychology, 28(3), 254-261. https://doi.org/10.1093/arclin/act018