Mothers and infants must meet certain criteria to be included in the study. Selection criteria are: maternal age between 20 and 45 years, ability to read and write in English, normal pregnancy/delivery status without birth complications, term birth (+/- 14 days from due date), and singleton status of the child. Approximately equal numbers of male and female infants will be recruited, and to the extent possible, the two groups of depressed and nondepressed mothers will be matched on ethnic composition. Participants will be seen at 5, 12, and 24 months.