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Related Experiment Videos

Timing in choice experiments.

Jeremie Jozefowiez1, Daniel T Cerutti, John E R Staddon

  • 1Department of Psychological and Brain Sciences, Duke University, Durham, NC 277089-9105, USA. jeremie@psych.duke.edu

Journal of Experimental Psychology. Animal Behavior Processes
|April 21, 2005
PubMed
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Pigeons

Area of Science:

  • Behavioral science and animal cognition.

Background:

  • Operant choice behavior is fundamental to understanding decision-making.
  • Interval schedules are key paradigms for studying timing and choice in animals.

Purpose of the Study:

  • To investigate the underlying processes governing pigeons' choices between different reinforcement schedules.
  • To determine if timing and response allocation are controlled by independent mechanisms.

Main Methods:

  • Experiment 1: Pigeons chose between variable-interval (VI) and fixed-interval (FI) schedules, with reinforcement timers resetting under different conditions.
  • Experiment 2: Pigeons chose between two FI schedules to further examine response allocation.
  • Behavioral data were analyzed to infer the timing and decision-making processes.

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Main Results:

  • Pigeons consistently timed reinforcement from trial onset under both VI and FI schedules.
  • Evidence suggests two independent processes: one for overall activity timing and another for response allocation between options.
  • Results from Experiment 2 corroborated the findings from Experiment 1.

Conclusions:

  • Pigeon behavior under interval schedules is governed by at least two independent control processes.
  • These findings offer insights into the general mechanisms of operant choice and timing in animal behavior.