One conditioned taste aversion experiment with rats assessed the impact of extinguishing a target conditioned stimulus (CS), S, in compound with a second CS, A, upon conditioned responding elicited by CS S when presented alone at test. Following initial conditioning treatment with CSs A and S, the experiment manipulated number of extinction trials…

Stimulus analyzer theory as proposed by Sutherland and Mackintosh (1971) makes the unique prediction that the first-experienced reinforcement schedule will influence resistance to extinction more than subsequent schedules. Results presently reported of runaway acquisition and extinction indicate the opposite: C-P consistently produce substantially…

The present study used a two-choice spatial probability-learning situation (Bitterman, 1975; Wilson & Oscar, 1966) in order to explore the hypothesis that Korsakoff patients differ from control subjects in the way in which they respond to changes in reinforcement contingencies. (Author)

These experiments attempt to optimize the possibility of demonstrating blocking in a taste-aversion paradigm and to elucidate the conditions under which this interference occurs. (Author/RK)

Learning behavior of young children of contrasting socioeconomic backgrounds is examined in this study, which poses the question: what are the necessary or sufficient environmental conditions for the establishment of identifiable patterns of behavior? Socioeconomic level (SEL), the principal independent variable, was defined in terms of parental…

Studies in the past have shown that reinforcements independent of the subjects actions may induce a feeling of helplessness. Most experiments on learned helplessness have led researchers to believe that uncontrollability (non-contingency of feedback upon response) was the determining feature of learned helplessness, although in most studies…