Impact of substance use disorder on gray matter volume in schizophrenia

Margaret Quinn, Maureen McHugo, Kristan Armstrong, Neil Woodward, Jennifer Blackford, Stephan Heckers

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Substance use may confound the study of brain structure in schizophrenia. We used voxel-based morphometry (VBM) to examine whether differences in regional gray matter volumes exist between schizophrenia patients with (n = 92) and without (n = 66) clinically significant cannabis and/or alcohol use histories compared to 88 healthy control subjects. Relative to controls, patients with schizophrenia had reduced gray matter volume in the bilateral precentral gyrus, right medial frontal cortex, right visual cortex, right occipital pole, right thalamus, bilateral amygdala, and bilateral cerebellum regardless of substance use history. Within these regions, we found no volume differences between patients with schizophrenia and a history of cannabis and/or alcohol compared to patients with schizophrenia without a clinically significant substance use history. Our data support the idea that a clinically meaningful history of alcohol or cannabis use does not significantly compound the gray matter deficits associated with schizophrenia.

Original languageEnglish (US)
Pages (from-to)9-14
Number of pages6
JournalPsychiatry Research - Neuroimaging
Volume280
DOIs
StatePublished - Oct 30 2018
Externally publishedYes

Keywords

  • Alcohol
  • Cannabis
  • Psychosis
  • Substance use disorders
  • Voxel-based morphometry

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Psychiatry and Mental health

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