| Abstract: | Studied the effects of partial reinforcement and partial delay on extinction performance. 72 naive female albino Sprague-Dawley rats served as Ss. Secondary reinforcement effects were controlled by using the same delay-of-magazine interval on nonreinforcement trials with partial reinforcement (delay of empty magazine) as occurred on delayed trials with partial delay (delay of magazine containing sucrose). 4 delay intervals (0, 15, 30, and 45 sec) were factorially combined with the schedule variable. Resistance to extinction was an increasing function for the length of the delay interval and was greater for partial reinforcement than for partial delay. No interaction was observed to occur between the length of the delay interval and type of reinforcement schedule. (French summary) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
