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Related Experiment Videos

Free-choice preference under uncertainty.

Ono1

  • 1Department of Psychology, Komazawa University, 1-23 Komazawa, Setagaya-ku, Tokyo, Japan

Behavioural Processes
|March 22, 2000
PubMed
Summary
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Pigeons showed a preference for free choice over forced choice when facing uncertain outcomes. However, this preference diminished when prior experience with certain outcomes influenced their choices.

Area of Science:

  • Behavioral psychology
  • Animal cognition
  • Operant conditioning

Background:

  • Studies on choice behavior often explore preferences between free and forced choice scenarios.
  • Reinforcement schedules, particularly concurrent-chain schedules, are used to model complex decision-making processes.
  • Understanding choice under uncertainty is crucial for behavioral economics and animal welfare.

Purpose of the Study:

  • To compare pigeons' preferences for free choice over forced choice under uncertain versus certain reinforcement contingencies.
  • To investigate the influence of prior experience with certain outcomes on choice behavior under uncertainty.
  • To examine the role of reinforcement probability and schedule type in shaping choice preferences.

Main Methods:

  • Utilized multiple concurrent-chain schedules of reinforcement with pigeons.

Related Experiment Videos

  • Manipulated contingencies to create uncertain (variable reinforcement probability) and certain (fixed reinforcement) conditions.
  • Assessed choice preferences by comparing responses to two alternatives versus one alternative in terminal links.

    • Main Results:

    • Naive pigeons initially preferred free choice (two alternatives) over forced choice (one alternative) under uncertain conditions.
    • This preference for free choice under uncertainty was robust and confirmed through contingency reversals.
    • However, when the uncertain condition followed the certain condition, preferences for free choice were inconsistent and minimal.

    Conclusions:

    • Pigeons exhibit a clear preference for free choice when initially exposed to uncertainty.
    • Prior experience with certain reinforcement contingencies can significantly reduce or eliminate the preference for free choice under subsequent uncertainty.
    • A history or carry-over effect from certain to uncertain conditions may decrease sensitivity to uncertainty in decision-making.