To examine key parameters of the initial conditions in early category learning, two studies compared 5-month-olds' object categorization between tasks involving previously unseen novel objects, and between measures within tasks. Infants in Experiment 1 participated in a visual familiarization-novelty preference (VFNP) task with two-dimensional…

An experiment with monochromatic lights is discussed in terms of the selective effects of wavelength on looking time and pleasantness, comparisons of infant and adult data, and differentiation of the selective effects of color category centers and color category boundaries. (JMB)

Two experiments were conducted to demonstrate that human infants 3 months of age perceive color in a normal, trichromatic manner. Results from these studies of the neutral zone and hue discrimination evidence trichromatic vision in infancy and are discussed in the context of their clinical, social, and intellectual implications. (Author/SB)

Fifty 4-month-old infants were habituated to one wavelength of light and then tested for recognition with the original and two new spectral lights. After short- and long-term delays with different types of retroactive interference, the results indicated that the infants' recognition memory for hue was quite resilient to interference or delay. (JMB)

The main objective of the present investigations was to determine whether or not young human infants see the physical spectrum in a categorical fashion as human adults and animals who possess color vision regularly do. (Author)

These experiments seek evidence for the existence, the operation, and the extent of influence of one type of code--a verbal, linguistic, semantic, name code--on memory. As well, they bring a new stimulus dimension, color, to this kind of test in a manner that would allow identification of individual variation in the use of different verbal labels…

Four experiments assessed converging aspects of four-month-old infants' perceptions of visual patterns. Results together corroborate and extend previous findings that vertical symmetry has a special status in early perceptual development and that infants can perceive pattern wholes. (Author/AS)

Three studies explore the development of discrimination and memory for symmetry in preschoolers four to six years of age. Issues addressed include the young child's ability to discriminate and reproduce symmetry, and the effects of pattern orientation and complexity on the young child's symmetry discrimination and reproduction. Results indicate…