Research in paired-associate overlearning sought means of decreasing the variability while maintaining the magnitude of the decrement in stimulus-response latency (SRL). SRL was divided into decision latency (DL) and manual response latency (MRL); it was hypothesized that self-pacing of inter-item intervals would reduce V. Group I received stimuli…

Children's short-term memory was studied under two experimental conditions: one in which recall was expected to be facilitated because of the provision of a study period, and one in which a distracting task was imposed that was expected to interfere with recall. Forty subjects at each of two age levels, 7 and 11 years, were tested in a…

The effectiveness of the CIRCUS language instruments for determining language comprehension and performance in the 4- and 5-year-old child is discussed. In these instruments, the use of content words is primarily studied through the use of single-word measures, such as a picture vocabulary test and an auditory discrimination test, whereas the use…

The mediating role of learning in the relationship between repeated exposure and affect was explored and supported in three experiments involving a total of 229 undergraduate participants. It was found that both learning and affect measures behaved in essentially the same way as a function of exposure duration (experiments I and III), serial…

Photographs of visual phenomena are presented to stimulate an awareness of the visual transition between the initial discovery of sights and their utilization in creative works. The visual phenomena are grouped into four units: changes on the surface of objects, perceptions of form, variations in perceptions due to the organization or association…

Human recognition behavior is influenced by the phenomenon of shape constancy, which occurs when the shape of an object is correctly perceived regardless of the orientation of the object in space. The research reported here tests the validity of the shape-slant invariance hypothesis, a theoretical formulation of the phenomenon of shape constancy.…

To assess the effects of familiar social stimuli on arousal in a novel and mildly stressful environment, skin conductance was measured in 4-year-old nursery school children who experienced this environment under two conditions: (a) alone, and (b) in the presence of a close friend. The study was intended to test Zajonc's (1965) social facilitation…

A study investigated changes in recognition time for short sentences presented on television screens of varying sizes with viewers at varying distances. In a posttest only control group design, subjects in several different groups viewed a series of similar sentences under conditions where screen size and distance from the screen were varied. The…

Using second grade children, this study was designed to investigate the differences (or lack of differences) among the Interview, the Picture Stimulus Interview, and the Free Play Situation techniques in the categories of productivity, thought groups, compound structures, complex structures, and words per thought group as a means of gaining a…

Dwelling on the primary ecological functions of life, energy, and matter, this book offers an artistic and graphic display of fundamental knowledge and beliefs about the environment. It seeks to contribute to a widespread appreciation of the earth's limits, to the shaping of human attitudes toward the earth and to increasing environmental…

Research conducted to determine the effect of certain measurable characteristics of written material upon speed of memorization is presented. The characteristics studied fall into four classes: (1) Load measures reflecting informational density, (2) Length measures based upon number of syllables, words, kernel sentences, clauses, or sentences in a…

This experiment examined developmental changes in the ability of infants to learn conceptual categories regarding the human face. A total of 108 infants, aged 18, 24, and 30 weeks, were habituated to (1) the same face in the same orientation, (2) the same face in differing orientations, or (3) different faces in different orientations. All…

This paper discusses three studies which examined the interaction of dimensional dominance with the attentional components of alertness and encoding. In Study I, twenty 6- and 7-year-olds observed thirty 3-second exposures of a color, then participated in a 40-trial choice reaction time task in which the familiarized color and a novel color served…

This study was designed to: (1) investigate differential responding to stimuli that differ along a continuum of degree of discrepancy from a familiarized standard; and (2) attempt to determine if infants will show response decrement and recovery to conceptual categories. Fifty-five infants at two age levels (10 and 16 weeks) were familiarized with…

The information processing terms "content" and "address" are used to describe structural differences between the constructs of individual identity and identity in the equivalence sense. In both cases a sameness relation is established in spite of specific differences. The resulting constructs of identity are known to be…