| Abstract: | Trained 82 male albino rats to barpress on an operant schedule. Ss were then given noncontingent reward training with the bar removed, and retested on the barpressing response. In each of the 4 experiments, rates of responding were generally depressed following noncontingent rewards on either VI or FI schedules. Reward schedules during barpressing affected the depression effect very little. Several hypotheses were tested in the last 2 studies, but none were supported by the data. (French summary) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
