The functional neuroanatomy of PTSD: a critical review

Israel Liberzon, Chandra Sekhar Sripada

Research output: Chapter in Book/Report/Conference proceedingChapter

387 Scopus citations

Abstract

Neuroimaging provides an opportunity to understand core processes that mediate the experience of emotions in healthy individuals as well as dysregulation of these processes in conditions such as posttraumatic stress disorder (PTSD). The first decade of neuroimaging research produced symptom provocation, cognitive activation, and functional connectivity studies that highlighted the role of the medial prefrontal cortex (mPFC), amygdala, sublenticular extended amygdala (SLEA), and hippocampus, in mediating symptom formation in PTSD. There is a growing realization that a number of other psychological processes are relevant to PTSD, and they are emerging as a new focus of neuroimaging research. These include fear conditioning, habituation, and extinction; cognitive-emotional interactions; and self-related and social emotional processing. Neuroimaging findings are reviewed that suggest that the mPFC is implicated in a number of these processes. It is proposed that the mPFC plays a role in the "contextualization" of stimuli, and dysregulation of contextualization processes might play a key role in the generation of PTSD symptoms.

Original languageEnglish (US)
Title of host publicationStress Hormones and Post Traumatic Stress Disorder Basic Studies and Clinical Perspectives
EditorsRonlad Kloet, Melly Oitzl, Eric Vermetten
Pages151-169
Number of pages19
DOIs
StatePublished - Nov 22 2007

Publication series

NameProgress in Brain Research
Volume167
ISSN (Print)0079-6123

Keywords

  • PTSD
  • amygdala
  • anterior cingulate cortex
  • emotion regulation
  • functional neuroimaging
  • hippocampus
  • medial prefrontal cortex
  • neural circuitry

ASJC Scopus subject areas

  • Neuroscience(all)

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