High impulsivity in rats predicts amphetamine conditioned place preference

Justin R. Yates, Julie A. Marusich, Cassandra D. Gipson, Joshua S. Beckmann, Michael T. Bardo

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Stimulants such as d-amphetamine (AMPH) are used commonly to treat attention-deficit hyperactivity disorder (ADHD), but concerns have been raised regarding the use of AMPH due to its reinforcing and potentially addictive properties. The current study examined if individual differences in impulsive choice predict AMPH-induced hyperactivity and conditioned place preference (CPP). Rats were first tested in delay discounting using an adjusting delay procedure to measure impulsive choice and then were subsequently tested for AMPH CPP. High impulsive (HiI) and low impulsive (LoI) rats were conditioned across four sessions with 0.1, 0.5, or 1.5 mg/kg of AMPH. AMPH increased locomotor activity for HiI and LoI rats following 0.5 mg/kg but failed to increase activity following 0.1 and 1.5 mg/kg. CPP was established for HiI rats with both 0.5 and 1.5 mg/kg of AMPH, whereas LoI rats did not develop CPP following any dose of AMPH; HiI and LoI groups differed significantly following 0.5 mg/kg of AMPH. These results indicate that HiI rats are more sensitive to the rewarding effects of AMPH compared to LoI rats, which is consistent with research showing that high impulsive individuals may be more vulnerable to stimulant abuse.

Original languageEnglish (US)
Pages (from-to)370-376
Number of pages7
JournalPharmacology Biochemistry and Behavior
Volume100
Issue number3
DOIs
StatePublished - Jan 2012

Keywords

  • Amphetamine
  • Conditioned place preference
  • Delay discounting
  • Impulsivity
  • Individual differences
  • Locomotor activity
  • Rat

ASJC Scopus subject areas

  • Biochemistry
  • Toxicology
  • Pharmacology
  • Clinical Biochemistry
  • Biological Psychiatry
  • Behavioral Neuroscience

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  • Cite this

    Yates, J. R., Marusich, J. A., Gipson, C. D., Beckmann, J. S., & Bardo, M. T. (2012). High impulsivity in rats predicts amphetamine conditioned place preference. Pharmacology Biochemistry and Behavior, 100(3), 370-376. https://doi.org/10.1016/j.pbb.2011.07.012