The present experiment was designed to assess the physiological changes instigated by the learned helplessness task, and to evaluate whether the physiological response patterns are similar to those reported in other studies on depression cited in this article. (Author/RK)

Therapeutic implications of the learned helplessness model of depression were tested. (Editor)

Twenty-six subjects were exposed to a period of noxious stimulation and subsequently performed a task that incidentally involved learning to avoid one of two types of punishment, electric shock and monetary loss. Results support Lykken's theory of the development of sociopathic behavior and Aronfreed's more general conceptualization of aversive…

The primary thrust of the present experiment was to examine the relative learning rate or capacity of hyperactive children on a laboratory learning task involving concept learning. (Author/RK)

The present research was designed to minimize the possibility for new learning contained in earlier studies and to focus primarily upon facilitating effects. (Author)

Examines the relative effectiveness of either partial or total success training as a preventive agent against the debilitating effect of noncontingent reinforcement. (Author/RK)