Article attempted to find whether there are experimental paradigms that can be employed to determine a sensory scale that is capable of accounting for judgments of differences, ratios, and similarities. (Author/RK)

The present experiment was intended as a further elaboration of the effects of nonphysically aversive stimulation on subsequent performance, in order to determine the applicability of the helplessness model to the human subject. (Author)

Examines the nature of perceptual mechanisms mediating kinetic depth effects by pitting one type of one-dimensional motion perspective against the other. (Author/RK)

This paper describes and tests a two-stage model for a "semantic congruity effect" in comparative judgments. (Editor)

These experiments pursued the idea that the detection of symmetry is accomplished by mental rotation to the vertical. They investigated the time it takes to decide whether or not a pattern is symmetrical as a function of the angular orientation of the pattern and the tilt of the subject's head. (Author/RK)

This study was designed to show that preferences for musical stimuli varying in complexity are in part determined by the range of complexity to which the subject adapts. (Author)

In two experiments the probabilistic properties of an internal (skill) task were simulated in an external (chance) task. (Editor)

A model was proposed as an alternative to current models for categorical perception, which refers to the apparent responding to stimuli only in absolute terms. The model proposed that a single (common) factor causes both a peak in the discrimination function and a categorical dichotomy and thus the correlation between the two. (Editor/RK)

Three experiments studied the effect of amount and type of concurrent memory load on the rate of readout from iconic memory. (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)

Three experiments further explored the Avant, Lyman, and Antes finding that, during prerecognition processing, differences in subjects' familiarity with letters, words, and nonwords generate differences in the apparent duration of tachistoscopic flashes. (Editor)

Three converging findings suggested that long movements are under feedback control whereas short movements are predominantly programmed and ballistic in nature. (Author/RK)

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)

Research by Posner and Mitchell (1967) was used to investigate levels of noise processing in testing subjects' ability to "gate out" the processing of irrelevant and unwanted material. Three experiments are reported in which subjects had to judge whether two letters were the "same" or "different". Noise elements were included to test attention…