Amygdala reactivity to faces at varying intensities of threat in generalized social phobia: an event-related functional MRI study

Psychiatry Res. 2010 Aug 30;183(2):167-9. doi: 10.1016/j.pscychresns.2010.05.001. Epub 2010 Jul 6.

Abstract

Using functional magnetic resonance imaging, we measured amygdala reactivity to faces varying on threat intensity in patients with generalized social phobia (GSP) and healthy controls. GSP patients exhibited greater amygdala reactivity to threat faces at high and moderate intensities. More subtle displays of social threat are sufficient to evoke a fear-related neural response.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Amygdala / blood supply*
  • Brain Mapping
  • Face*
  • Facial Expression*
  • Female
  • Humans
  • Image Processing, Computer-Assisted / methods
  • Magnetic Resonance Imaging*
  • Male
  • Oxygen / blood
  • Phobic Disorders* / pathology
  • Phobic Disorders* / physiopathology
  • Phobic Disorders* / psychology
  • Photic Stimulation / methods
  • Young Adult

Substances

  • Oxygen