Assessment and choice: an operant simulation of foraging in patches

Article Abstract:

Pigeons exhibit shorter giving-up times in foraging when the initial ratio of reinforcement probabilities of the stable and the unstable patches of food vary, and when the reinforcement probability reduces in a single step. When the unstable patch falls in two steps, the giving-up times appear to be affected by the second step of the step change. This indicates that recent events affect the behavior of animals.

Usage, Sensory reinforcement

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Investigating behavioral dynamics with a fixed-time extinction schedule and linear analysis

Article Abstract:

Pigeons responding to a step transition show greater responsiveness to low frequencies in the reinforcement schedule and an unsignaled change in the schedule to extinction after exposure to a variable-interval schedule. This indicates that transfer functions permit the predictability of the pigeons' behavior under a set of contingencies. The pigeons show the characteristics of a low pass filter.

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Wiener filter estimation of transfer functions

Article Abstract:

A two-pass, Monte-Carlo-based algorithm, which is well suited to repeated-trials local average measurements, is reported. The Wiener filter transfer functions strongly suppress noise artifacts as well s allow reliable transfer function determination under a much wider class of reinforcement schedules.

Algorithms, Algorithm, Linear systems

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