Examines the relationship between visual attentiveness, search behavior, and duration of independent mobility for 56 eight-to ten-month-old infants when presented with three versions of the Piagetian Stage IV object permanence task. (HOD)

Are there universal characteristics of adult thought? If so, how do they evolve and manifest themselves in cultures throughout the world? Piaget's formulation of formal operations is the best known and most extensively researched answer to the question regarding universal characteristics. Theoretical alternatives to formal operations differ in the…

This overview of Soviet developmental psychology and its influence on special education focuses on dialectical materialistic interpretations of behavior, socio-historical determinism, zones of proximal development, realization and enhancement of children's cognitive potential, influence of Jean Piaget's work, linking of mental retardation with…