Pigeons' choices between fixed-ratio and linear or geometric escalating schedules

Article Abstract:

The authors discuss experiments which used pigeons to choose between fixed-ratio and progressive schedules of reinforcement. Methodology, research results and data analysis are included.

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Pigeons' choices between fixed-interval and random-interval schedules: Utility of variability?

Article Abstract:

A discrete-trial procedure was used to investigate pigeons' choosing between fixed-interval and random-interval schedules of reinforcement. In all the experiments the random-interval schedule was generated by sampling a probability distribution at an interval equal to that of the fixed-interval schedule.

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Pigeons' choices between fixed-ratio and geometrically escalating schedules

Article Abstract:

Research using concurrent-chains schedules shows that pigeons make choice patterns according to the relative position of food reinforcers in experimental conditions. The sums-of-reciprocals principle was used to calculate choice responses at varying food reinforcer distances. These are shown and discussed. The average median switch points are given.

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