Development of the relation between skills of visual and auditory pattern classification was studied at the second grade, sixth grade, and adult age levels using visual and auditory representations of the same abstract information. Results showed evidence of common processing of pattern class structure for the modalities, patterns, prototypes, and…

Results of this study suggest that 3-year-olds have a good deal of sensitivity to static depth information. (Authors)

A study of developmental aspects of selective attention and task-related strategies of attention in 2nd and 6th graders. Age differences were found and interpreted as reflecting the development of flexible as well as selective attention strategies. (DP)

Results are discussed in terms of cognitive growth, the psychoanalytic notion of ambivalence, the role of stimulus context in eliciting laughter or fear, and a possible adaptive, stimulus-maintaining function of laughter. (Authors)

Although Ss underestimated the size of the illusion in the predicted direction, no significant correlations between size of illusion and either age or IQ were found. (Authors)

The degree of reality perception of cartoon and human-fantasy televised episodes was measured in four- and five-year-olds. Five-year-olds had a more mature reality perception than four-year-olds. Only five-year-olds had a more mature reality perception of cartoon than of human fantasy episodes. (Author/RD)

Hemispheric specialization tasks were given to different-aged boys. Asymmetries were demonstrated on manual, visual, and auditory tasks; however, the degree of asymmetries did not change across age groups. There appears to be a dissociation between visual and auditory perceptual asymmetries. (Author/RD)

Elderly subjects demonstrated significantly greater levels of persistence. Contrast relationship of the target stimulus and its background did not interact with age. Although the data were consistent with a hypothesis of increased persistence of stimuli in the senescent nervous system, problems in the direct measurement technique are evident.…

Tests the hypothesis that children will be better than adults at perceiving depth at large disparities in random-dot stereograms. Subjects were 4, 6, 8, and 25 years of age, with six males and six females in each of the four age groups. (MP)

Visual pattern preferences were established for 96 9- and 13-week-old infants using stimuli varying in contour density presented either at a low, moderate, or high luminance level. Age differences in the maximally preferred patterns across stimuli and luminance levels indicated that luminance interacts with contour density in determining stimulus…

Compared the postural responsiveness of seven-, eight-, and nine-month-old infants. Results indicated greater use of optic flow for postural control after a self-produced locomotor experience. Infants with endogenous (creeping) or artificial (walker) self-produced locomotor experience responded to portions of the optic flow field, whereas…

Infants were familiarized with plastic animals from one of two categories (land or sea) that were judged similar or variable by adults. Infants were then tested with novel animals from the same or a different category. Thirteen-month-olds in the similar familiarization condition dishabituated to novel animals of a different category and, to a…

Two studies investigated development of infants' visual preferences for the human body shape. Results indicated that 18-month-olds had a reliable preference for scrambled body shapes over typical body shapes in line drawings, while 12- and 15-month-olds did not respond differentially. In condition using photographs, only 18-month-olds had reliable…

Four experiments examined how perception affects delayed recognition, visual pop out, and memory reactivation (priming) in six month olds. Infants discriminated cues differing in spatial arrangement or number of primitive perceptual units (textons) in a delayed recognition task and exhibited adultlike visual pop-out effects in a priming task. (MDM)