PARAMETERS CONTRIBUTING TO SEQUENTIAL EFFECTS UNDER MULTIPLE SCHEDULES OF REINFORCEMENT.
Item
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Title
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PARAMETERS CONTRIBUTING TO SEQUENTIAL EFFECTS UNDER MULTIPLE SCHEDULES OF REINFORCEMENT.
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Identifier
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AAI8409395
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identifier
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8409395
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Creator
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HASSIN HERMAN, ALISON DEBRA.
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Contributor
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Bruce L. Brown | Nancy S. Hemmes
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Date
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1984
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Language
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English
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Publisher
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City University of New York.
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Subject
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Psychology, Experimental
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Abstract
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The present investigation explored the discrepancy between two different sequential effects observed in multiple schedule paradigms. The following-high-density effect was defined when higher keypecking rates occurred in a target component which was followed by a component associated with a high density of reinforcement than during a target component which was followed by a component associated with a low density of reinforcement. The following-low-density effect was defined when higher keypecking rates occurred in a target component which was followed by a component associated with a low/zero density of reinforcement than during a target component which was followed by a component associated with a high density of reinforcement. In each of three experiments, pigeons were exposed to a multiple schedule containing two fixed two-component sequences. Each sequence was differentially cued during the initial component of each sequence. Across all three experiments, a differential S-SR relation was introduced in the initial component by eliminating reinforcement in the terminal component of one sequence. The initial component was 6 sec in duration and was then systematically increased until equal in duration to the 30 sec terminal component of each sequence. In Experiment 1, with extinction schedules in the initial components and no differential stimuli in the terminal components, the following-high-density effect varied with the duration of the initial component. In Experiment 2, with a nonzero schedule of reinforcement in the initial components and no differential stimuli in the terminal components, the following-high-density effect and the following-low-density effect were observed at initial component durations greater than 6 sec. With a nonzero schedule of reinforcement in the initial components and differential stimuli in the terminal components, birds in Experiment 3 responded similarly to two birds in Experiment 2. When the initial component was short (6 sec), the following-high-density sequence was demonstrated. When the initial component was long (18 or 30 sec), the following-low-density effect was demonstrated. The duration of the initial component and the schedule of reinforcement in the initial component were determining factors for the type of following density effect obtained.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Psychology
