Deviations on exploration, attachment, and fear of strangers in high-risk and control infants at one year of age.

Exploratory behavior and deviations on three dimensions--fear of strangers, attachment to mother, and exploration--were studied in 46 infants of mothers with a history of psychosis and 80 control infants. While high-risk infants did not differ from controls on exploration alone, they showed multiple deviations on the three dimensions more frequently than did controls, especially in the case of offspring of schizophrenic mothers.