It is an accepted, albeit puzzling finding that negative priming (NP) hinges on the presence of distractors in probe displays. In three experiments without probe distractors, the authors yielded evidence that response-biasing processes based on the contingency between prime and probe displays may have caused this finding. It is argued that it is…

Deals with selective attention phenomena and elaborates on a stimulus material classification, "stimulus set" versus "response set", proposed by Broadbent (1970, 1971).

The purpose of this article is to focus on the consequences of conditioned response and conditioned response on trial i for response probability on trial i + 1. (Author)

Does similarity in the location and temporal intensity pattern of the CS and UCS permit more rapid conditioning despite the presence of stimulus pairings in all groups? The following experiments attempt to assess the role of such factors in determining the rate of acquisition of a conditioned emotional response. (Author)

The experiments reported here describe the relationships between the reflex-modulating effects of compounded stimuli and the effects of these stimuli when they act in isolation. (Author)

Using rats and pigeons as subjects, the effects of varying amounts of reinforcement on the rate and temporal patterns of interim and terminal behaviors engendered by periodic feeding schedules were assessed in three experiments. (Author/KC)

In three experiments the location of pigeons was monitored during 20-second illuminations of a right or left key presented in various temporal relationships with food delivery. In general, subjects approached a signal positively correlated with food and withdrew from a signal negatively correlated with food. (Editor)

This study examined whether dissonance is, phenomenologically, an aversive state. Experimental subjects were induced to write counterattitudinal essays under a high-choice condition. Evaluates subjects' reactions toward taking pills designed to bring about dissonance. (Editor/RK)

In this article it is argued that reading is faster than naming because printed words are more compatible with verbal responses than are objects. (Editor)

The purpose of this study was to establish a theoretical framework for Stevens' empirically derived power law. Three models were proposed to explain the power law. (Editor)

When asked to report the first digit that comes to mind, a predominant number (28.4 percent) of the respondents choose 7. Three further experiments sought to establish whether this predominance is due to an automatic activation process or to a deliberate choice. (Editor)

This experiment asks whether filmed violence will have an aggression enhancing effect an hour after the movie is viewed as well as immediately afterwards. It also inquires whether a preliminary attack upon an available target right after the film is seen helps maintain the heightened aggressive tendency initially produced by the movie. (Author/RK)

The main finding of these four experiments was that the strong conditioning produced by a brief exposure to a truly random control weakened with prolonged exposure. (Author/RK)

Predictions of two-stage learning theories were evaluated by measuring observing responses which produced the discriminative stimuli for .5 sec. (Editor)

This article reports the first of a series of studies to determine whether the lead-stimulus paradigm would yield results in man similar to those obtained in other organisms. (Author)