Resurgence of alcohol seeking produced by discontinuing non-drug reinforcement as an animal model of drug relapse

Behav Pharmacol. 2006 Jun;17(4):369-74. doi: 10.1097/01.fbp.0000224385.09486.ba.

Abstract

Findings from basic behavioral research suggest that simply discontinuing reinforcement for a recently reinforced operant response can cause the recurrence (i.e. resurgence) of a different previously reinforced response. The present experiment examined resurgence as an animal model of drug relapse. Initially, rats pressed levers to self-administer alcohol during baseline conditions. Next, alcohol self-administration was discontinued and non-drug reinforcers (food pellets) were presented contingent on an alternative response (chain pulling). Finally, when the non-drug reinforcer was discontinued, alcohol seeking recurred even though alcohol was still unavailable for lever pressing. These results suggest that simply discontinuing non-drug reinforcement for a behavior may be sufficient to produce relapse to drug seeking. The resurgence procedure could provide a method to examine environmental, pharmacological, and neurobiological factors that lead to relapse following the loss of a non-drug source of reinforcement.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Alcoholism / psychology*
  • Animals
  • Conditioning, Operant / drug effects
  • Disease Models, Animal
  • Extinction, Psychological
  • Food
  • Male
  • Rats
  • Rats, Long-Evans
  • Recurrence
  • Reinforcement, Psychology*