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Peer reviewedVauclair, Jacques – Human Development, 1984
Parker and Gibson's developmental model of evolution of language and intelligence in early hominids is described and discussed; data from a comparative study of object manipulation in two apes and a human infant are reported; and, human ontogenic developmental retardation in locomotion is discussed in terms of its implications for the differential…
Descriptors: Comparative Analysis, Infants, Object Manipulation, Primatology
Peer reviewedPower, Thomas G.; And Others – Developmental Psychology, 1985
Studies 12- to 24-month-olds in a series of videotaped tasks assessing single object manipulation, relational play, pretend play, distractibility and persistence. Develops eight relatively subtle measures of three aspects of individual differences in infant behavior: developmental level, attention span, and exploratory diversity. (Author/NH)
Descriptors: Exploratory Behavior, Individual Differences, Infants, Object Manipulation
Peer reviewedMacTurk, Robert H.; And Others – Developmental Psychology, 1987
Sequences of mastery behavior were analyzed in a sample of 67 infants 6 to 12 months old. Authors computed (a) frequencies of six categories of mastery behavior, transitional probabilities, and z scores for each behavior change, and (b) transitions from a mastery behavior to positive affect. Changes in frequencies and similarity in organization…
Descriptors: Affective Behavior, Behavior Development, Goal Orientation, Infants
Peer reviewedHatwell, Yvette – International Journal of Behavioral Development, 1987
Recent work on the development of the perceptual information-seeking function of the hand in relation to its motor-executive function is reviewed. (PCB)
Descriptors: Children, Eye Hand Coordination, Infants, Motor Development
Peer reviewedRamsay, Douglas S.; Weber, Sherry Lee – Child Development, 1986
Tested infants in their second year with a box task to determine whether they would show a hand preference in solutions involving complete differentiation of roles for the two hands. (HOD)
Descriptors: Behavior Development, Child Development, Cognitive Development, Infants
Ogura, Tamiko – 1987
Examined in a longitudinal study of children were correspondences and correlations between early language development on the one hand, and the manipulation of objects and play development on the other. There were developmental correspondences between the onset of five language landmarks (the emergence of first word, referential word, demonstrative…
Descriptors: Child Development, Child Language, Cognitive Development, Foreign Countries
Peer reviewedCassidy, Jude – Child Development, 1986
Explores the relation between the infant's ability to negotiate the environment and the quality of the infant-mother attachment relationship. (HOD)
Descriptors: Adjustment (to Environment), Attachment Behavior, Behavior Development, Behavior Patterns
