AP PSYCHOLOGY

Detailed explanation-1: -While hallucinations and imagery occur during an awake state, dreams are experienced during sleep, or during the transition between wake and sleep [19, 37].

Detailed explanation-2: -Hypnagogic hallucinations occur during the hypnagogia stage of sleep, while nightmares generally occur later in the sleep cycle when a person is fully asleep. Generally, vivid dreams, such as nightmares, occur most commonly during the rapid eye movement (REM) stage.

Detailed explanation-3: -Experts don’t know exactly what causes them, but they know they aren’t a cause for concern. They’re simply something that your brain might do during the process of falling asleep. Sometimes, hypnagogic hallucinations happen along with a state of sleep paralysis.

Detailed explanation-4: -Hypnagogic Hallucinations Examples include a sensation of impending threat, feelings of suffocation, and sensations of floating, spinning, or falling. Hypnagogic hallucinations occur in 40 to 80 percent of patients with narcolepsy and cataplexy.