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)

Two experiments demonstrated that Pavlovian counterconditioning alters not only the responses elicited by an aversive stimulus but also the capacity of that stimulus to act as a reinforcer in a fear-conditioning paradigm. (Author/RK)

In each of three experiments, both cue validities and task predictability were held constant while the sign of the cue validities and cue intercorrelation were varied. (Editor)

The role of instructions about list overlap was investigated in typical part-whole free-recall transfer and in partially overlapping lists where only half of List 1 was included in List 2. (Editor)

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)

Two experiments examined factors underlying false alarms on recognition tests when the elements of the test items were presented alone for study at different points in time, and when the elements were parts of different 2-element units during study. (Editor)

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)

Four experiments tested the conditioned attention theory (CAT) of latent inhibition (LI). (Author/RK)

Previous research has investigated the effects of interpresentation lag within the context of experimenter-controlled lag values. The present study attempted to explore subject-controlled lag effects on paired-associate learning. (Editor)

Visual memory in monkeys was examined under four different conditions, each with a separate group. (Editor)

The purpose of the present study was to assess whether or not categorized words are of similar benefit to short-term storage (STS). Specifically, can the use of categorized words be demonstrated to alleviate the limited rehearsal capacity of STS? (Author)

Recent studies suggest that the negative recency effect in final free recall is a function of the type rather than the amount of rehearsal given to terminal list items. From such findings it was predicted that by varying the type of rehearsal, positive recency in final free recall could be obtained. (Editor)