Follow-up of preschool children with severe emotional and behavioral symptoms.

Background: Biological and environmental factors have been related to the persistence of psychopathology in preschool children. The objective of the study was to identify the factors predicting the clinical outcome in preschool inpatients with emotional and behavioral disorders.

Method: Twenty-eight children aged 3 to 6.

Sleep-wake patterns in preterm infants and 6 month's home environment: implications for early cognitive development.

Aims: This study examined the relationship between early organization of sleep-wake states and developmental outcome at 6-month-old premature infants.

Study Design: This was a prospective randomized study that evaluated the sleep-wake states of healthy premature infants in the nursery environment for two successive 72-h periods, at 32 and 36 weeks gestational age.

Subjects: Thirty-four healthy premature infants.