Multiple and concurrent schedule performance: independence from concurrent and successive schedule contexts.

Area of Science:

• Behavioral Psychology
• Operant Conditioning
• Animal Behavior

Background:

• Understanding how animals respond to different reinforcement schedules is crucial for behavioral analysis.
• Multiple and concurrent schedules of reinforcement present complex choice and timing scenarios for subjects.

Purpose of the Study:

• To investigate pigeon behavior under multiple and concurrent variable-interval schedules of reinforcement.
• To examine the effects of varying reinforcement rates and schedule structures on response allocation and rates.

Main Methods:

• Six pigeons were trained on multiple variable-interval schedules.
• Performance was assessed with and without a concurrently available common schedule.
• Manipulations included altering reinforcement rates in the common schedule and varying components of the multiple schedule.

Main Results:

• Reinforcement rate changes generally produced expected rate-increasing and rate-decreasing effects.
• Undermatching to reinforcement rate ratios was observed in both concurrent and multiple schedules, with greater undermatching in multiple schedules.
• Response allocation between multiple schedule components was not affected by concurrent reinforcement availability.

Conclusions:

• The degree of undermatching differs significantly between multiple and concurrent schedules.
• Pigeon behavior demonstrates distinct patterns of response allocation depending on schedule structure (multiple vs. concurrent).
• Reinforcement availability in one schedule component does not necessarily influence allocation in another, highlighting schedule-specific control.