Describes an experiment in which the rate of habituation of fixation of 12-week-old infants to a homogeneous stimulus series where a cube was presented in different orientations was contrasted with the rates of habituation to various heterogeneous series where a cube was alternated with some other solid. (Author/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 visual and motor responses to novel and familiar stimuli were measured in twelve 6-month-old infants, using new measures of integration and concordance. Results indicate that the infants' responses to the stimuli were both integrated and concordant. (Author/JMB)

This study investigated the extent of infant peripheral vision, specifically the extent of infants' constricted field, or tunnel vision. Thirteen infants, 2 to 5 months old, were tested using a psychophysical procedure to obtain contrast sensitivity thresholds at four retinal loci (-40, -15, +15, +40 deg.). Infants were placed in an infant bed in…

In order to study infants' sensitivity to binocular information for depth, 11 infants, 20 to 26 weeks of age, were presented with real and stereoscopically projected virtual objects at three distances, and the infants' reaching behavior was videotaped. (Author/SB)

The reactions of 112 10-month-old male infants to the property of curvature were examined using a habituation paradigm with lever pressing as an instrumental response. (SB)

In this study examining infants' responses to optical expansion, 18 infants between 36 and 61 days old watched expanding shadows that differed in the terminal location of the center of expansion and the number of dimensions undergoing change. Babies consistently rotated their heads upward during expansion of a closed figure when the center of…

Human infants' discrimination of changes in internal and external elements of compound visual patterns was investigated in four experiments employing a familiarization-novelty paradigm in which visual reinforcing patterns were presented contingent upon rate of high-amplitude nonnutritive sucking. (Author/JH)

The ability of 3-month-old infants to discriminate novel components of a pre-familiarized stimulus was assessed using an operant paradigm. Subjects were 20 infants; adult judgments were taken from 15 college students. (Author/JH)

This paper deals with research on the development of infants' ability to perceive invariant features of things and the relation of objects to both the spatial layout of the infants' environment and to themselves. Basic assumptions regarding the perception of invariance are discussed and a theoretical view of the role of motion in the development…

Results showed that 2- and 3-dimensional forms affected 4- and 8-week-old infant visual behavior differently. (Author/JMB)