STATES OF CONSCIOUSNESS
DREAMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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REM
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NREM
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Either A or B
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None of the above
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Detailed explanation-1: -Nightmares usually occur during the stage of sleep known as rapid eye movement (REM) sleep. The exact cause of nightmares is not known. Nightmares can be triggered by many factors, including: Stress or anxiety.
Detailed explanation-2: -They occur more often during rapid eye movement (REM) sleep, the stage of sleep associated with intense dreaming. Nightmares arise more frequently in the second half of the night when more time is spent in REM sleep. View Source .
Detailed explanation-3: -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.
Detailed explanation-4: -The most common cause of REM rebound is sleep deprivation, especially very early awakening that cuts off the second half of our sleep. REM rebound also happens when a person stops taking a substance that suppresses REM sleep.