Choice, changing over, and reinforcement delays

Article Abstract:

This article examines the effects of variable delays to reinforcement on conditioned responses of pigeons during a key-peck task. Findings indicate that combinations of different lengths of delays between stimulus changes and reinforcements result in decreased changeover rates and brief periods of increased response rates following transitions.

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The generalized matching law describes choice on concurrent variable-interval schedules of wheel-running reinforcement

Article Abstract:

This article examines factors that influence rats' choices during wheel-running reinforcement tasks on concurrent variable-interval schedules. Findings indicate that response allocation is less sensitive to rates of relative reinforcement than time allocation and that the matching law can be used to describe rats' behavior during wheel-running reinforcement.

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On the functions of the changeover delay

Article Abstract:

Research was conducted to determine local response rates in concurrent schedules and their relation to matching. Pigeons responding on variable-interval variable-interval schedules were observed to study the function of changeover delays (CODs) on producing matching. Based on the matching relations observed, it is concluded that COD arrangements do not affect molar matching and no particular pattern of responding during and after the COD is required for matching.

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