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EFFECTS OF CONDITIONED REINFORCEMENT FREQUENCY IN AN INTERMITTENT FREE‐FEEDING SITUATION 1, 2
Author(s) -
Zimmerman Joseph,
Hanford Peter V.,
Brown Wyman
Publication year - 1967
Publication title -
journal of the experimental analysis of behavior
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 61
eISSN - 1938-3711
pISSN - 0022-5002
DOI - 10.1901/jeab.1967.10-331
Subject(s) - reinforcement , schedule , extinction (optical mineralogy) , stimulus (psychology) , psychology , conditioning , audiology , statistics , mathematics , computer science , social psychology , cognitive psychology , physics , optics , medicine , operating system
Key‐pecking intermittently produced a set of brief exteroceptive stimulus changes under two‐component multiple schedules of conditioned reinforcement. Throughout the study, free access to grain was concurrently provided on an intermittent basis via a variable‐interval tape. Free food presentations scheduled by the tape were delivered if no peck had been emitted for 6 sec, and the brief stimulus changes produced by responding under the multiple schedules were those which accompanied food presentation. The second component of each multiple schedule was always associated with a 1‐min, variable‐interval schedule of conditioned reinforcement. The schedule associated with the first component was systematically varied and conditioned reinforcement was either absent (extinction) or programmed on a 1‐, 3‐, 6‐, or 12‐min variable‐interval schedule. Under these conditions, rate of responding in the manipulated component decreased monotonically with a decrease in the frequency of conditioned reinforcement. In addition, contrast effects were often obtained in the constant, second component. These results are similar to those obtained with similar multiple schedules of primary reinforcement.