Reduced posterior hippocampal volume in posttraumatic stress disorder

Omer Bonne, Meena Vythilingam, Masatoshi Inagaki, Suzanne Wood, Alexander Neumeister, Allison C. Nugent, Joseph Snow, David A. Luckenbaugh, Earle E. Bain, Wayne C. Drevets, Dennis S. Charney

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

Objective: Hippocampal volume is reduced in posttraumatic stress disorder (PTSD). In the present study, we sought to determine whether volume loss is homogenously distributed or confined to a certain part of the structure. Method: Twenty-two adult outpatients with PTSD (11 after prolonged prepubertal trauma and 11 after single adult trauma) and 22 matched healthy subjects were scanned at the National Institute of Mental Health using high-resolution 3T magnetic resonance imaging between September 2003 and August 2004. PTSD diagnosis was conferred using the Structured Clinical Interview for DSM-IV. Volumes of whole, anterior, and posterior hippocampus and subiculum were compared between groups. Results: Total hippocampal volume was lower in patients with PTSD (p = .02), with a significant diagnosis by hippocampal-subregion interaction (p =.02). Post hoc analysis revealed significantly smaller posterior hippocampi in PTSD (p =.006), with no difference in the volumes of anterior hippocampus or subiculum. No volume differences were found between PTSD participants with prolonged childhood abuse compared to single adult trauma exposure.Conclusions: The posterior hippocampus has been associated with storage, processing, and retrieval of spatiotemporal memories, central to the protective function of fear conditioning. Volume deficit in the posterior hippocampus may indicate malfunction in this faculty, leading to the exaggerated conditioned fear response observed in PTSD.

Original languageEnglish
Pages (from-to)1087-1091
Number of pages5
JournalJournal of Clinical Psychiatry
Volume69
Issue number7
Publication statusPublished - Jul 2008
Externally publishedYes

Fingerprint

Post-Traumatic Stress Disorders
Hippocampus
Fear
Wounds and Injuries
National Institute of Mental Health (U.S.)
Diagnostic and Statistical Manual of Mental Disorders
Healthy Volunteers
Outpatients
Magnetic Resonance Imaging
Interviews

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Clinical Psychology

Cite this

Bonne, O., Vythilingam, M., Inagaki, M., Wood, S., Neumeister, A., Nugent, A. C., ... Charney, D. S. (2008). Reduced posterior hippocampal volume in posttraumatic stress disorder. Journal of Clinical Psychiatry, 69(7), 1087-1091.

Reduced posterior hippocampal volume in posttraumatic stress disorder. / Bonne, Omer; Vythilingam, Meena; Inagaki, Masatoshi; Wood, Suzanne; Neumeister, Alexander; Nugent, Allison C.; Snow, Joseph; Luckenbaugh, David A.; Bain, Earle E.; Drevets, Wayne C.; Charney, Dennis S.

In: Journal of Clinical Psychiatry, Vol. 69, No. 7, 07.2008, p. 1087-1091.

Research output: Contribution to journalArticle

Bonne, O, Vythilingam, M, Inagaki, M, Wood, S, Neumeister, A, Nugent, AC, Snow, J, Luckenbaugh, DA, Bain, EE, Drevets, WC & Charney, DS 2008, 'Reduced posterior hippocampal volume in posttraumatic stress disorder', Journal of Clinical Psychiatry, vol. 69, no. 7, pp. 1087-1091.
Bonne O, Vythilingam M, Inagaki M, Wood S, Neumeister A, Nugent AC et al. Reduced posterior hippocampal volume in posttraumatic stress disorder. Journal of Clinical Psychiatry. 2008 Jul;69(7):1087-1091.
Bonne, Omer ; Vythilingam, Meena ; Inagaki, Masatoshi ; Wood, Suzanne ; Neumeister, Alexander ; Nugent, Allison C. ; Snow, Joseph ; Luckenbaugh, David A. ; Bain, Earle E. ; Drevets, Wayne C. ; Charney, Dennis S. / Reduced posterior hippocampal volume in posttraumatic stress disorder. In: Journal of Clinical Psychiatry. 2008 ; Vol. 69, No. 7. pp. 1087-1091.
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