A PHARMACOLOGICAL EXAMINATION OF THE RESISTANCE‐TO‐CHANGE HYPOTHESIS OF RESPONSE STRENGTH
- 1 November 1986
- journal article
- research article
- Published by Wiley in Journal of the Experimental Analysis of Behavior
- Vol. 46 (3), 363-379
- https://doi.org/10.1901/jeab.1986.46-363
Abstract
The effects of d-amphetamine sulfate, sodium pentobarbital, haloperidol, and cholecystokinin-octapeptide were examined within the context of Nevin''s (1974, 1979) resistance-to-change hypothesis of response strength. In three experiments, rats'' responding was reinforced by delivery of food under chained random-interval 30-s random-interval 30-s, multiple fixed-interval 30-s fixed-inerval 120-s, or multiple random-interval 30-s random-interval 120-s schedules. Each rat received several doses of each drug and changes in response rate were measured. The resistance-to-change hypothesis predicts greater disruption of response rate relative to baseline in the initial component of the chained schedule and in the 120-s component of the multiple schedules. In the chained schedule cholecystokinin-octapeptide produced greater reductions in response rate relative to baseline in the initial component. However, no differences between components were observed with haloperidol or sodium pentobarbital, and high doses of d-amphetamine reduced response rate in the terminal component relatively more than in the initial component. In the multiple schedules either no differences were observed between components or response rate was reduced more relative to baseline in the 30-s component. The data fail to support the notion that drugs may be viewed within the same context as other response disruptors such as extinction, satiation, and the presentation of alternative reinforcement.This publication has 26 references indexed in Scilit:
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