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Bendersky, Margaret; Lewis, Michael – Developmental Psychology, 1998
Examined arousal regulation as a function of levels of prenatal cocaine exposure in 4-month-olds, using a "still face" procedure. Found that, independent of several other factors, a greater percentage of heavily cocaine-exposed infants, compared to unexposed infants, showed less enjoyment during "en face" play with their mothers and continued to…
Descriptors: Affective Behavior, Arousal Patterns, Attention, Cocaine

Alessandri, Steven M.; Bendersky, Margaret; Lewis, Michael – Developmental Psychology, 1998
Compared cognitive functioning of infants--at 8 and 18 months--with varying levels of prenatal cocaine exposure. Found that, with risk and polydrug exposure controlled, exposure groups did not differ at 8 months on Bayley Scales or recovery to a novel stimulus. Infants with heavy exposure or high environmental risk declined in mental development…
Descriptors: At Risk Persons, Cocaine, Cognitive Development, Comparative Analysis