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Reinforcement rate and interresponse time differentiation.

D O Kuch, J R Platt

Journal of the Experimental Analysis of Behavior

|November 1, 1976

Summary

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Reinforcement of specific interresponse times (IRTs) significantly altered response patterns more than changes in the overall reinforcement rate. This highlights the primary role of targeted reinforcement in shaping behavior.

Area of Science:

Behavioral Psychology
Operant Conditioning
Animal Behavior

Background:

Understanding the factors that control response timing is crucial in behavioral science.
Reinforcement rate and specific reinforcement contingencies are known to influence behavior, but their relative importance in shaping interresponse times (IRTs) requires further clarification.

Purpose of the Study:

To independently assess the contribution of reinforcement rate and differential reinforcement of IRTs to the control of response timing.
To determine whether reinforcement rate or specific IRT reinforcement has a greater impact on behavioral patterns.

Main Methods:

Utilized modified percentile reinforcement schedules to manipulate reinforcement rate and selectively reinforce specific IRTs (longest or shortest).
Independently varied reinforcement schedules to isolate the effects of reinforcement rate and IRT-specific reinforcement.

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Main Results:

Decreased mean IRT was observed with increased reinforcement rate when no differential IRT reinforcement was applied.
Reinforcing long IRTs resulted in substantial changes in mean IRT, even when reinforcement rates were constant.
No significant interaction was found between reinforcement rate and IRT reinforcement.

Conclusions:

Differential reinforcement of specific IRTs exerts a stronger influence on response timing than changes in the overall reinforcement rate.
IRT-specific reinforcement takes precedence over molar reinforcement-rate correlations in determining interresponse times within these experimental procedures.