Reduced olfactory bulb volume in patients with schizophrenia

Bruce I. Turetsky, Paul J. Moberg, David M. Yousem, Richard L. Doty, Steven E. Arnold, Raquel E. Gur

Research output: Contribution to journalArticlepeer-review


Objective: The authors' goal in this study was to compare the size of olfactory bulbs of patients with schizophrenia and those of healthy subjects. Method: Magnetic resonance imaging scans of olfactory bulbs were obtained from 26 patients with schizophrenia and 22 healthy comparison subjects. A reliable region of interest procedure was used to measure olfactory bulb volume. Results: Patients exhibited 23% smaller bilateral bulb volume than comparison subjects, independent of acute clinical, demographic, or treatment measures. Bulb volume correlated with odor detection sensitivity in healthy subjects but not in patients with schizophrenia. Conclusions: Patients with schizophrenia exhibit structural olfactory deficits as well as functional olfactory deficits. The olfactory system may be a model system in which to study the neurobiology of the disorder.

Original languageEnglish (US)
Pages (from-to)828-830
Number of pages3
JournalAmerican Journal of Psychiatry
Issue number5
StatePublished - May 2000
Externally publishedYes

ASJC Scopus subject areas

  • Psychiatry and Mental health


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