Learned helplessness as a schedule-shift effect

The essentials of learned helplessness theory are described and supporting evidence surveyed. It is shown that two main empirical phenomena are associated with learned helplessness: a low rate of responding in laboratory animals following numerous discrete trials with continuous free relief and in human subjects following continuous nonrelief/reward or traditional extinction. The explanation Seligman and Maier give for these findings is critically analyzed and found to be unsupported at several critical points. The “patchwork” nature of the theory and observations is considered and it is contended that what is new in learned helplessness research is a schedule-shift effect like that observed when extinction follows partial reinforcement. A schedule-shift discrimination theory of “learned helplessness” effects is offered which is closely parallel to a widely accepted explanation of other schedule-shift effects, notably the partial reinforcement extinction effect. Although the behavioral effects of some schedule shifts resemble clinical depression, the latter is a more complex behavioral phenomena than the former which in turn has broader relevance to human behavior than just depression.     

The meaning of observed violence: Effects on arousal and aggressive behavior

Eighty male subjects were either attacked by a confederate or treated neutrally and then watched a violent movie. Subjects were told beforehand that the fighting in the movie was motivated by either desires for revenge, by professionalism, or by altruism. Other subjects were shown the film without comment. Relative to subjects in all other conditions, subjects who had been attacked and told that the fight was motivated by revenge subsequently (1) gave more intense shocks to the confederate, (2) rated themselves as less restrained in aggressing, and (3) manifested higher levels of blood pressure at the conclusion of the film. The results indicate that the meaning attched to observed violence may affect the aggression elicited by that violence in at least two ways: by lowering inhibitions against aggressing, and by raising arousal levels.