REDUCTION OF SHOCK DURATION AS NEGATIVE REINFORCEMENT IN FREE‐OPERANT AVOIDANCE
- 1 March 1980
- journal article
- research article
- Published by Wiley in Journal of the Experimental Analysis of Behavior
- Vol. 33 (2), 265-273
- https://doi.org/10.1901/jeab.1980.33-265
Abstract
Rats were trained on a free-operant procedure in which shock duration was controlled by responses within a limited range of interresponse times. Shocks of 1.6-mA intensity occurred randomly with average density of 10 shocks per minute. As long as interresponse times were 15 seconds or less, any shocks received were at the briefer of two durations (.3 second). Whenever interresponse times exceeded 15 seconds, any shocks received were at the longer duration (1.0 second). For six of eight animals, avoidance responding developed quickly and reached levels of better than 90%. Four yoked animals stopped responding within the first few sessions. Shock duration reduction without change in shock probability or intensity was sufficient for the acquisition and maintenance of avoidance responding.Keywords
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