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Related Experiment Video

Updated: May 26, 2026

A Protocol for Measuring Cue Reactivity in a Rat Model of Cocaine Use Disorder
07:51

A Protocol for Measuring Cue Reactivity in a Rat Model of Cocaine Use Disorder

Published on: June 18, 2018

Cocaine self-administration in rats: threshold procedures.

Erik B Oleson1, David C S Roberts

  • 1Department of Neurobiology and Anatomy, University of Maryland, School of Medicine, Baltimore, MD, USA.

Methods in Molecular Biology (Clifton, N.J.)
|January 11, 2012
PubMed
Summary
This summary is machine-generated.

The threshold self-administration procedure measures both the maximum price animals pay for cocaine and their preferred consumption levels. This method offers a comprehensive view of cocaine-seeking behaviors in addiction research.

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Last Updated: May 26, 2026

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Area of Science:

  • Neuroscience
  • Behavioral Pharmacology
  • Addiction Science

Background:

  • Cocaine addiction is a significant public health issue characterized by compulsive drug-seeking and use.
  • Traditional self-administration models study specific behavioral aspects of drug intake independently.
  • A need exists for methodologies that capture multiple facets of drug-taking behavior simultaneously.

Purpose of the Study:

  • To introduce and validate the threshold self-administration procedure for assessing cocaine-related behaviors.
  • To measure both the economic demand (maximal price) and consumption preferences for cocaine within a single experimental paradigm.
  • To provide a more comprehensive behavioral measure relevant to understanding drug addiction.

Main Methods:

  • Utilizing a threshold self-administration paradigm in animal models.
  • Measuring the maximal price (breakpoint) an animal will pay for intravenous cocaine infusions.
  • Assessing the preferred concentration of cocaine when available at a low effort cost.

Main Results:

  • The threshold procedure successfully quantified two distinct measures of cocaine's reinforcing properties in the same session.
  • Maximal price and preferred concentration represent independent yet crucial aspects of drug-seeking behavior.
  • This method allows for a nuanced understanding of how cocaine affects both motivation and consumption choices.

Conclusions:

  • The threshold self-administration procedure is a valuable tool for simultaneously assessing multiple determinants of cocaine use.
  • This methodology enhances the study of drug addiction by providing a more complete behavioral profile.
  • Future research can leverage this procedure to investigate factors influencing cocaine demand and preference.