Beyond extinction: erasing human fear responses and preventing the return of fear

Nat Neurosci. 2009 Mar;12(3):256-8. doi: 10.1038/nn.2271. Epub 2009 Feb 15.

Abstract

Animal studies have shown that fear memories can change when recalled, a process referred to as reconsolidation. We found that oral administration of the beta-adrenergic receptor antagonist propranolol before memory reactivation in humans erased the behavioral expression of the fear memory 24 h later and prevented the return of fear. Disrupting the reconsolidation of fear memory opens up new avenues for providing a long-term cure for patients with emotional disorders.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustic Stimulation / methods
  • Adolescent
  • Adult
  • Extinction, Psychological / drug effects
  • Extinction, Psychological / physiology*
  • Fear / drug effects
  • Fear / physiology*
  • Fear / psychology*
  • Female
  • Humans
  • Male
  • Memory / drug effects
  • Memory / physiology
  • Propranolol / pharmacology
  • Reaction Time / drug effects
  • Reaction Time / physiology*
  • Reflex, Startle / drug effects
  • Reflex, Startle / physiology
  • Young Adult

Substances

  • Propranolol