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Related Experiment Videos

Beyond discounting: possible experimental models of impulse control.

J Monterosso1, G Ainslie

  • 1Department of Psychiatry, Coatesville VA Medical Center, Coatesville, PA 19320, USA.

Psychopharmacology
|November 7, 1999
PubMed
Summary

Animal models of impulsivity often overlook self-control. This study suggests focusing on self-control mechanisms, not just delay discounting, offers a better analog for human impulsive behavior.

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Area of Science:

  • Behavioral neuroscience
  • Psychopharmacology

Background:

  • Animal impulsivity research commonly uses delay of reward, differential reinforcement for low rate responding (DRL), or autoshaping procedures.
  • These models equate impulsivity with how delay affects reward value, measured by temporal discount functions.

Purpose of the Study:

  • To propose an expanded model of impulsivity that incorporates self-control mechanisms.
  • To provide a more accurate analog of human impulsivity in animal studies.

Main Methods:

  • Critically analyze existing animal models of impulsivity.
  • Discuss current animal models of self-control.
  • Suggest future directions for psychopharmacological research.

Main Results:

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  • Existing animal models implicitly or explicitly equate impulsivity with delay discounting.
  • Human impulsivity may stem more from self-control failures than steep temporal discounting.

    • Conclusions:

    • Animal models need to include self-control to better reflect human impulsivity.
    • Future research should explore the psychopharmacology of self-control in animal models.