Executive functions enable flexible thinking, something young children are notoriously bad at. For instance, in the dimensional change card sort (DCCS) task, 3-year-olds can sort cards by one dimension (shape), but continue to sort by this dimension when asked to switch (to color). This study tests a prediction of a dynamic neural field model that…

Reviews Greenough, Black, and Wallace's (1987) conceptual framework for understanding the effects of early experience and sensitive periods on development, and illustrates the applicability of their model with recent data on the consequences for animals and human infants of the acquistion of self-produced locomotion. (BN)

The role of experience in the developing brain is considered. A categorization scheme based upon the type of information stored and the brain mechanisms involved in storing the information is proposed. Experience-expectant and experience-dependent information storage are differentiated. (BN)

Studied a social developmental model of discounting. Experiments showed that discounting increased according to the degree of similarity between the task situation and subjects' earlier experience. Although older children discounted consistently, younger children discounted only after a relevant script-generating experience. (RJC)

Examined predictors and sequelae of homesickness in 293 boys, ages 8 to 16 years, who spent two weeks at an overnight camp. Found that the "homesick disposition" and little prior separation together accounted for 69% of the variance in self-reported homesickness. Interpersonal attitudes and perceived control predicted 70% of the variance…

Interprets literature on contributions of social cognitive and emotion processes to children's social competence in the context of an integrated model of emotion processes and cognition in social information processing. Provides neurophysiological and functional evidence for the centrality of emotion processes in personal-social decision making.…

Five common play criteria were applied by subjects to a videotape of nursery school children's behavior, rated separately for occurrence of play. The idea that play is best predicted by a combination of criteria was supported by the finding that, when more criteria occurred simultaneously, the more certainly a judgment of play was implied.…