AP PSYCHOLOGY

Detailed explanation-1: -Whilst nightmares occur during REM (dream) sleep, night terrors occur during NREM (usually stage 3) sleep. As a result, they differ in several ways: Confusion: Upon waking after a night terror people are generally confused and disoriented. After a nightmare, people orient themselves on waking.

Detailed explanation-2: -Night terrors and nightmares are different and happen at different stages of sleep. During a night terror you may talk and move about but are asleep. It’s rare to remember having a night terror. Nightmares are bad dreams you wake up from and can remember.

Detailed explanation-3: -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-4: -Night terrors are like nightmares, except that nightmares usually occur during rapid eye movement (REM) sleep and are most common in the early morning. Night terrors usually happen in the first half of the night.

Detailed explanation-5: -It is during these REM episodes that brain structures in the default network exert influence, and it is during REM sleep that vividly recalled dreams occur most often. Nightmares tend to happen during the period of sleep when REM intervals lengthen; these usually occur halfway through slumber.