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Peer reviewedBurnham, D. K.; Day, R. H. – Journal of Experimental Child Psychology, 1979
Three experiments were conducted to examine whether infants can detect the color of stationary and moving objects and maintain this discrimination over change in velocity. Subjects were 80 infants ages 8 to 20 weeks. (MP)
Descriptors: Age Differences, Color, Foreign Countries, Generalization
Peer reviewedContole, Julie; Over, Ray – Journal of Experimental Child Psychology, 1981
Six infants were filmed at 15 and 30 weeks of age while alone and in the presence of an adult (mother or stranger) who interacted with the infant or remained passive. Signal detection analysis of ratings made by judges showed that infant behavior at both ages varied in accord with whether or not an adult was present. (Author/DB)
Descriptors: Age Differences, Cues, Foreign Countries, Infant Behavior
Peer reviewedGunn, P.; And Others – Child Development, 1981
Older Down's syndrome infants responded to the regular reappearance of a squeaky doll with significantly more affective behavior than did younger Down's syndrome infants. Longitudinal research with the younger infants indicated that the onset of affective behavior significantly correlated with mental development and aspects of temperament.…
Descriptors: Adjustment (to Environment), Affective Behavior, Age Differences, Downs Syndrome
