AP PSYCHOLOGY

Detailed explanation-1: -Sleep terrors are a disorder of arousal, meaning they occur during N3 sleep, the deepest stage of non-rapid eye movement (NREM) sleep.

Detailed explanation-2: -Night terrors can cause severe distress, followed by a state of panic and a sensation of helplessness. Most episodes last 45-90 minutes and are most common as the individual passes through stages 3 and 4 non-rapid eye movement sleep.

Detailed explanation-3: -Night terrors usually happen in kids between 4 and 12 years old, but have been reported in babies as young as 18 months. They seem to be a little more common among boys.

Detailed explanation-4: -Night terrors occur during the transition from stage 3 non-REM sleep to stage 4 non-REM sleep, beginning approximately 90 minutes after the child falls asleep. Night terrors are distinctly different from the much more common nightmares, which occur during REM sleep.

Detailed explanation-5: -Night terrors stem from an arousal disorder, known as a parasomnia, which occur during deep sleep, says pediatric pulmonologist and sleep specialist Katharina Graw-Panzer, MD. They affect nearly 40% of children between 4 and 12–years-old, with 5-7 being the peak age range.