AP PSYCHOLOGY

Detailed explanation-1: -Non rapid eye movement (NREM) parasomnias are abnormal behaviors arising primarily but not exclusively during non-REM stage three (N3) sleep. Phenotypes include sleepwalking, sleep terrors, confusional arousals, sexsomnia, and sleep-related eating disorder (SRED).

Detailed explanation-2: -Night terrors usually happen about 2 or 3 hours after a child falls asleep, when sleep moves from the deepest stage of non-REM sleep to lighter REM sleep. Usually this transition is a smooth one. But sometimes, a child becomes upset and frightened-and that fear reaction is a night terror.

Detailed explanation-3: -Night terrors, also called sleep terrors, are a type of parasomnia, classified as an arousal disorder, that occurs during non-REM (NREM) sleep. They usually occur during the first 3 to 4 hours of the night.