FAILURE TO OBTAIN POSITIVE CONTRAST WHEN PIGEONS PRESS A BAR1
- 1 November 1973
- journal article
- research article
- Published by Wiley in Journal of the Experimental Analysis of Behavior
- Vol. 20 (3) , 499-510
- https://doi.org/10.1901/jeab.1973.20-499
Abstract
In Experiment 1, two groups of pigeons were exposed to multiple variable‐interval 1‐min variable‐interval 1‐min schedules of reinforcement. The required response was a key peck for one group, and a foot press of a bar for the other. When the procedure was shifted to multiple variable‐interval 1‐min extinction, positive contrast occurred with pigeons that key pecked, whereas negative induction occurred with those that bar pressed. Moreover, the absence of contrast could not be ascribed to the lack of inhibition, since negative generalization gradients after bar press training were U‐shaped in Experiment 2. The results are discussed in terms of possible relationships between positive contrast and the phenomenon of autoshaping.Keywords
This publication has 14 references indexed in Scilit:
- THE MAINTENANCE OF KEY PECKING BY STIMULUS‐CONTINGENT AND RESPONSE‐INDEPENDENT FOOD PRESENTATIONJournal of the Experimental Analysis of Behavior, 1973
- By-Products of Discrimination LearningPsychology of Learning and Motivation, 1972
- BEHAVIORAL CONTRAST AND RESPONSE INDEPENDENT REINFORCEMENT1Journal of the Experimental Analysis of Behavior, 1971
- CONTRAST AND INDUCTION IN RATS ON MULTIPLE SCHEDULES1Journal of the Experimental Analysis of Behavior, 1971
- The "supersitition" experiment: A reexamination of its implications for the principles of adaptive behavior.Psychological Review, 1971
- INHIBITION AND THE STIMULUS CONTROL OF OPERANT BEHAVIOR1Journal of the Experimental Analysis of Behavior, 1970
- AUTO‐MAINTENANCE IN THE PIGEON: SUSTAINED PECKING DESPITE CONTINGENT NON‐REINFORCEMENT2Journal of the Experimental Analysis of Behavior, 1969
- DISCRIMINATION LEARNING, THE PEAK SHIFT, AND BEHAVIORAL CONTRAST1Journal of the Experimental Analysis of Behavior, 1968
- AUTO‐SHAPING OF THE PIGEON'S KEY‐PECK1Journal of the Experimental Analysis of Behavior, 1968
- TIME‐DEPENDENT CONTRAST EFFECTS IN A MULTIPLE SCHEDULE OF FOOD REINFORCEMENT1Journal of the Experimental Analysis of Behavior, 1967