Four-year-old boys and girls initially named and matched by form more often than by color. Also, agreements involving form names and matches occurred more often than agreements involving color names and matches. (Authors)

This research tested the hypothesis that young children's bias to generalize names for solid objects by shape is the product of statistical regularities among nouns in the early productive vocabulary. Fifteen- to 20-month-olds given intensive naming experiences with typical noun categories developed a precocious shape bias and showed accelerated…

This theoretical paper is concerned with the evaluation and preference responses of preschool children to light- and dark-skinned human figures. The paper examines the hypothesis that in children the frequently observed bias favoring light-skinned persons over dark-skinned persons is not a racial bias but is related to early learning experiences…

Predictions for multidimensional generalization were derived from Hull-Spence learning theory, and an experiment is reported that was designed to test this aspect of the theory. Alternative to this analysis is presented in PS 502 062; authors respond in PS 502 063. (Authors/MB)

We have used a genetically tractable model system, the fruit fly "Drosophila melanogaster" to study the interdependence between sensory processing and associative processing on learning performance. We investigated the influence of variations in the physical and predictive properties of color stimuli in several different operant-conditioning…