This study investigates the developmental changes that occur in the attending behavior of children engaged in a relatively simple classification task, and attempts to reaffirm the existence of developmental changes in stimulus preferences and in the ability to employ double classification systems. Subjects were 24 preschool and 24 first grade…

Describes experiments which focus on the perception of three dimensions. Discusses the cues about distance and depth and the role they have in perceptions of three dimensions. Evaluates the effect of color on the illusion on depth. (ML)

Two experiments assessed the importance of sound duration for eliciting head orientation responses from newborn infants. Results suggest that newborns' head orientation response may reflect a motor program that is initiated by auditory input and then executed in a similar fashion regardless of further stimulation. (Author/AS)

A task was used in which subjects at three different Piagetian stages of intellectual development were to induce the missing relationship in different triadic situations. (Authors)

Results show that both kindergarten nonconservers and kindergarten conservers found height most salient. Third-grade conservers found quantity most salient but could easily attend to height and width. (Author/CB)

Subjects were trained against their initial dimensional preference in a two-dimensional simultaneous discrimination learning task. (RH)

A teacher reports on helpful advice she received from a colleague when she started teaching: to teach students in the cognitive mode in which they learn best (auditory, visual, kinesthetic, or tactile). (TE)

Investigates the difference between children's drawings from two- and three-dimensional models, specifically, the influence of color and line, the difference between multicolor and monochrome material, and gender differences. Finds that children's drawings present detailed information about the subject first, then simple proportions, and finally…

Recent findings suggest a right hemispheric dominance in gaze-triggered shifts of attention. The aim of this study was to clarify the dominant hemisphere in the gaze processing that mediates attentional shift. A target localization task, with preceding non-predicative gaze cues presented to each visual field, was undertaken by 44 healthy subjects,…

Recently, nonparametric methods have been proposed that provide a dimensionally based description of test structure for tests with dichotomous items. Because such methods are based on different notions of dimensionality than are assumed when using a psychometric model, it remains unclear whether these procedures might lead to a different…

Many studies have analysed how goal directed movements are corrected in response to changes in the properties of the target. However, only simple movements to single targets have been used in those studies, so little is known about movement corrections under more complex situations. Evidence from studies that ask for movements to several targets…

The eye movements of skilled readers are typically very regular (K. Rayner, 1998). This regularity may arise as a result of the perceptual, cognitive, and motor limitations of the reader (e.g., limited visual acuity) and the inherent constraints of the task (e.g., identifying the words in their correct order). To examine this hypothesis,…

The present experiment investigated the impact of contextually trained discriminations on gambling behavior. Nine recreational slot-machine players were initially exposed to concurrently available computerized slot machines that were each programmed on random-ratio schedules of reinforcement and differed only in color. All participants distributed…

Accurately denoting colors and measuring their meanings have been long-standing challenges for scholars and artists alike. This study addressed this problem by suggesting that the use of a model of cyan, magenta, and yellow primary colors--which is common in industry but is generally neglected by scholars and fine artists--could greatly benefit…