Repetition is a salient strategy used by human and non-human cohorts for learning and controlling behavior. It this research project, a case study was conducted to explore deliberate voluntary repetition in younger cohorts during their spontaneous solitary play with single or multiple objects. Two main types of repetition -- blocked and random --…

The current study is the first to examine the role of exploration in play milestones development using a multi-measure micro-analytic approach. Fifteen infants, between the ages of 8 and 17 months, were observed in their natural home environment once a month for a one--hour session; their spontaneous mouthing and fingering and their play level…

Discusses developmental changes in visual exploration and manipulative investigation among children from birth to six months, six to 12 months, and 12 to 36 months of age. Also discusses pretend play in terms of decentration, decontextualization, and integration. (RH)

Compared the impact of a small box emitting sounds in response to nearby motion introduced into an infant/toddler and a preschool classroom to illustrate qualitative differences in how children of different ages recognize the same objects as mediating devices for activity. Found that the box became a social object for infants/toddlers and part of…