Decreased absolute amygdala volume in cocaine addicts

Nikos Makris, Gregory P. Gasic, Larry J. Seidman, Jill M. Goldstein, David R. Gastfriend, Igor Elman, Matthew D. Albaugh, Steven M. Hodge, David A. Ziegler, Fred S. Sheahan, Verne S. Caviness, Ming T. Tsuang, David N. Kennedy, Steven E. Hyman, Bruce R. Rosen, Hans C. Breiter*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

121 Scopus citations

Abstract

The amygdala is instrumental to a set of brain processes that lead to cocaine consumption, including those that mediate reward and drug craving. This study examined the volumes of the amygdala and hippocampus in cocaine-addicted subjects and matched healthy controls and determined that the amygdala but not the hippocampus was significantly reduced in volume. The right-left amygdala asymmetry in control subjects was absent in the cocaine addicts. Topological analysis of amygdala isosurfaces (population averages) revealed that the isosurface of the cocaine-dependent group undercut the anterior and superior surfaces of the control group, implicating a difference in the corticomedial and basolateral nuclei. In cocaine addicts, amygdala volume did not correlate with any measure of cocaine use. The amygdala symmetry coefficient did correlate with baseline but not cocaine-primed craving. These findings argue for a condition that predisposes the individual to cocaine dependence by affecting the amygdala, or a primary event early in the course of cocaine use.

Original languageEnglish (US)
Pages (from-to)729-740
Number of pages12
JournalNeuron
Volume44
Issue number4
DOIs
StatePublished - Nov 18 2004

ASJC Scopus subject areas

  • Neuroscience(all)

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