A total of 20 infants either five or seven months of age viewed computer-generated random-lot displays in which accretion and deletion of texture provided the only information for contours. Infants of both age groups showed significant preferences to reach for the apparently nearer regions in the displays. (Author/RH)

Investigates the role active, self-produced movement might play in the type of rotation task typically used to assess spatial orientation in children 12 months to 18 months of age. Results indicated that, at least at 12 months, spatial orientation was indeed facilitated by allowing the infants (n = 13) to move through space on their own. (RH)

Infants five and seven months of age participated in two studies in which two filmed facial expressions were presented with a single vocal expression characteristic of one of the facial expressions. Seven- , but not five-month-olds, increased their fixation to a facial expression when it was sound-specified. Preferences for a particular expression…

Study tests 45 four-month-old infants for color constancy using a familiarization, paired-comparison paradigm. Infants tested with a change in illuminant correctly recognized the familiar color under some conditions and failed to do so under others. (Author/RWB)

In this longitudinal study, infants' visual guidance of hand orientation was investigated by presenting a rod either horizontally or vertically to see if the orientation of the reaching hand was adjusted toward the orientation of the rod before contacting it. Subjects were l8 infants seen monthly between 18 and 34 weeks of age. (RH)

A test for sensitivity to binocular disparity and a shape perception test were administered to four-month-olds. Results indicated that disparity-sensitive infants could perceive three-dimensional-object shape from kinetic and binocular depth information. (PCB)

Two different methods which minimize achromatic cues were used to test the ability of one-month-olds to discriminate gray from broadband blue. Test data imply an improvement between birth and one month of age in the discrimination of gray from broadband blue. Possible physiological changes underlying this improvement are discussed. (Author/RWB)

Reports on four experiments on pattern perception in four-month-old infants. The first experiment examined preference for patterns varying in structure; the second examined encoding patterns from different subset sizes; and the last two experiments examined changes in the size, position, and orientation of the habituation pattern. (HOD)

To investigate sensory dominance in early development, a series of studies examined six-month-old infants' processing of multisensory stimulus compounds. Findings indicated that infants discriminated changes in the temporal characteristics of the auditory component but not in the visual component. This and other findings suggested that auditory…

Involving 10-month-old infants, a series of studies examined responses to temporally modulated compound auditory-visual stimuli. Findings indicated that, although the auditory modality can dominate the visual modality at 10 months of age, the visual modality can process temporal information when the temporal relationship of the information in the…

Examines, in two experiments, 5-month-old infants' sensitivity to auditory-visual specification of distance and direction of movement. One experiment presented two films with soundtracks in either a match or mismatch condition; the second showed the two films side-by-side with a single soundtrack appropriate to one. Infants demonstrated visual…

Infants were tested in three studies of the acquisition and long-term retention of category-specific information. Results document retention of category-specific information after intervals of two weeks. (PCB)

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)

Compares monocular depth perception with binocular depth perception in five- to seven-month-old infants. Reaching preferences (dependent measure) observed in the monocular condition indicated sensitivity to monocular depth information. Binocular viewing resulted in a far more consistent tendency to reach for the nearer object. (Author)

Compares estimates of monocular visual resolution of children 6- to 36-months of age with three psychophysical procedures: the Probabilistic Estimation by Sequential Testing (PEST), a modification of the PEST procedure, and the method-of-constant stimuli. (HOD)