This paper was concerned with the perceptions that can result from a change in the length of the retinal image of a line. Conditions that lead either to the perception of a line of changing length and the perception of a line of constant length undergoing covering or uncovering by another object were examined. (Author/RK)

The purpose of this research was (a) to determine whether or not an emotional response, as measured by palmar skin conductance, does accompany a critical item, and (b) if it does, to investigate its relationship to the deficit in recognition memory. (Author/RK)

The influence of stimulus number and familiarity on judged duration were investigated. Results showed that the number of stimulus elements presented within a given interval affected its perceived duration, although the familiarity of those elements (as defined herein) did not. (Editor/RK)

Subjects worked on a problem, engaged in an intervening activity, and then resumed work on the problem. Different intervening activities represented various mechanisms that produce incubation (e.g., set breaking, facilitation by analogy, review of the problem's elements). These various treatment groups were compared to a control group that worked…

Eighty-six adults serially recalled lists of visually presented consonant letters similar in auditory or visual features or dissimilar on both feature sets. There were significantly more errors at every auditory list position than at the corresponding visual and neutral list positions, which did not themselves differ. Positive correlation exists…

This research sought to distinguish among three concepts of visual persistence by substituting the physical presence of the target stimulus while simultaneously inhibiting the formation of a persisting representation. Reportability of information about the stimuli was compared to a condition in which visual persistence was allowed to fully develop…

These experiments allow a comparison between visual and auditory presentation per se: Will it be easier to identify "red" as relevant given a geometric design or its verbal description? Suggests that visual presentation confers one advantage: allows the formation of a nonverbal code in addition to a verbal description. (Author/RK)