Abnormal brain structure in youth who commit homicide

L. M. Cope, E. Ermer, L. M. Gaudet, V. R. Steele, A. L. Eckhardt, M. R. Arbabshirani, M. F. Caldwell, V. D. Calhoun, K. A. Kiehl

Research output: Contribution to journalArticle

Abstract

Background Violence that leads to homicide results in an extreme financial and emotional burden on society. Juveniles who commit homicide are often tried in adult court and typically spend the majority of their lives in prison. Despite the enormous costs associated with homicidal behavior, there have been no serious neuroscientific studies examining youth who commit homicide. Methods Here we use neuroimaging and voxel-based morphometry to examine brain gray matter in incarcerated male adolescents who committed homicide (n = 20) compared with incarcerated offenders who did not commit homicide (n = 135). Two additional control groups were used to understand further the nature of gray matter differences: incarcerated offenders who did not commit homicide matched on important demographic and psychometric variables (n = 20) and healthy participants from the community (n = 21). Results Compared with incarcerated adolescents who did not commit homicide (n = 135), incarcerated homicide offenders had reduced gray matter volumes in the medial and lateral temporal lobes, including the hippocampus and posterior insula. Feature selection and support vector machine learning classified offenders into the homicide and non-homicide groups with 81% overall accuracy. Conclusions Our results indicate that brain structural differences may help identify those at the highest risk for committing serious violent offenses.

Original languageEnglish (US)
Pages (from-to)800-807
Number of pages8
JournalNeuroImage: Clinical
Volume4
DOIs
StatePublished - 2014
Externally publishedYes

Keywords

  • Gray matter volume
  • Incarcerated adolescents
  • Magnetic resonance imaging (MRI)
  • Pattern classifier
  • Support vector machine (SVM)
  • Voxel-based morphometry (VBM)

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Neurology
  • Clinical Neurology
  • Cognitive Neuroscience

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  • Cite this

    Cope, L. M., Ermer, E., Gaudet, L. M., Steele, V. R., Eckhardt, A. L., Arbabshirani, M. R., Caldwell, M. F., Calhoun, V. D., & Kiehl, K. A. (2014). Abnormal brain structure in youth who commit homicide. NeuroImage: Clinical, 4, 800-807. https://doi.org/10.1016/j.nicl.2014.05.002