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Related Experiment Video

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Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
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Published on: March 17, 2019

Impulsivity affects suboptimal gambling-like choice by pigeons.

Jennifer R Laude1, Joshua S Beckmann1, Carter W Daniels1

  • 1Department of Psychology, University of Kentucky.

Journal of Experimental Psychology. Animal Learning and Cognition
|July 3, 2013
PubMed
Summary

Pigeons, like some humans, make suboptimal choices by favoring high-reward, low-probability options over reliable, better outcomes. This preference is linked to impulsivity, suggesting a common mechanism in decision-making and gambling behaviors.

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Area of Science:

  • Behavioral economics
  • Animal cognition
  • Neuroscience

Background:

  • Pigeons exhibit a preference for low-probability, high-payoff choices over optimal, high-yield alternatives.
  • This behavior mirrors human suboptimal monetary gambling, characterized by overemphasizing wins and underemphasizing losses.

Purpose of the Study:

  • To investigate the relationship between impulsivity and suboptimal choice in pigeons.
  • To explore the underlying mechanisms of decision-making that contribute to gambling-like behaviors.

Main Methods:

  • Pigeons were presented with choices between optimal and suboptimal food-reward schedules.
  • Impulsivity was assessed using a hyperbolic delay-discounting task (smaller-sooner vs. larger-later rewards).

Main Results:

  • Pigeons consistently chose the suboptimal, high-payoff alternative.
  • A steeper delay-discounting function (higher impulsivity) correlated with increased suboptimal choices.
  • Higher baseline impulsivity was associated with a greater tendency to acquire gambling habits.

Conclusions:

  • Pigeon's suboptimal choice behavior is directly related to their level of impulsivity.
  • Impulsivity is a key factor in the development of gambling habits, observed in both pigeons and humans.
  • Findings suggest shared neurobiological mechanisms for suboptimal decision-making across species.