Self-control in pigeons under the Mischel paradigm.

Area of Science:

• Comparative Psychology
• Animal Behavior
• Behavioral Economics

Background:

• Walter Mischel's research investigated self-control in preschool children using delay of gratification paradigms.
• Self-control involves choosing a larger, later reward over a smaller, sooner reward.

Purpose of the Study:

• To investigate self-control in pigeons using a procedure analogous to Mischel's human studies.
• To explore variables affecting self-control in pigeons, such as reinforcer presence and prior experience.

Main Methods:

• Pigeons were presented with a choice: wait for a trial to end to receive a preferred reinforcer or terminate the trial early by pecking a key for a less preferred reinforcer.
• The study manipulated variables analogous to those in Mischel's research, including reinforcer presence, alternative responses, stimuli during the wait interval, prior experience, and test paradigms.

Main Results:

• Pigeons exhibited self-control, choosing to wait for the larger, later reward under specific conditions.
• The results obtained with pigeons paralleled findings from Mischel's studies with human children, suggesting conserved mechanisms of self-control.

Conclusions:

• The study provides evidence for self-control in pigeons, supporting the generalizability of delay of gratification principles across species.
• Findings suggest that fundamental mechanisms underlying self-control may be conserved across different species, including humans and pigeons.