Paradoxical sleep deprivation potentiates amphetamine-induced behavioural sensitization by increasing its conditioned component

Brain Res. 2004 Apr 2;1003(1-2):188-93. doi: 10.1016/j.brainres.2003.11.050.

Abstract

The effects of paradoxical sleep deprivation (PSD-48 h) on the conditioned and unconditioned components of behavioural sensitization to amphetamine (two injections of 2.0 mg/kg, separated by 7 days) were studied using locomotion frequency of mice observed in an open-field as experimental parameter. Behavioural sensitization only occurred in PS deprived mice that were exposed to the open-field after the first amphetamine injection. The possible involvement of PSD in the development of a Pavlovian association between the stimulant effect of amphetamine and environmental as well as interoceptive drug cues is discussed.

Publication types

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

MeSH terms

  • Amphetamine / pharmacology*
  • Animals
  • Conditioning, Psychological / drug effects*
  • Conditioning, Psychological / physiology
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Motor Activity / drug effects*
  • Motor Activity / physiology
  • Sleep Deprivation* / physiopathology
  • Sleep, REM / drug effects*
  • Sleep, REM / physiology

Substances

  • Amphetamine