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Several small studies suggest an association between parasomnias (nightmares, night terrors, and sleepwalking) in early childhood and development of psychotic experiences (hallucinations, delusions, and thought interference) in adolescence. Investigators prospectively followed nearly 7,000 children in England from birth to age 12 years to examine sleep-related antecedents to psychotic experiences.
When children were between ages 2 and 9 years, their mothers completed questionnaires on six occasions about their children's nightmares. At age 12 years, the children underwent a semistructured interview about nightmares, night terrors, sleepwalking, hallucinations (visual and auditory), delusions (spied on, persecutions, thoughts read, and grandi…