AP PSYCHOLOGY

Detailed explanation-1: -REM sleep is called “paradoxical” because of its similarities to wakefulness. Although the body is paralyzed, the brain acts as if it is somewhat awake, with cerebral neurons firing with the same overall intensity as in wakefulness.

Detailed explanation-2: -Stage five is the final stage of sleep where we begin to dream, and it occurs about 90 minutes into the sleep cycle. The eyes move rapidly, breathing becomes shallow and rapid, and blood pressure and heart rate increase. During REM sleep, the arms and legs are paralyzed so that sleepers can’t act out their dreams.

Detailed explanation-3: -Rapid eye movement (REM) sleep is called paradoxical sleep because it involves seemingly contradictory states of an active mind and a sleeping body.

Detailed explanation-4: -Paradoxical sleep refers to rapid eye movement (REM) sleep. During REM sleep, the eyes rapidly move back and forth. This is the phase of sleep during which vivid dreams often occur. Paradoxical insomnia means that a person believes they are awake when they are asleep or believes they have insomnia when they do not.

Detailed explanation-5: -The fourth is rapid eye movement (REM) sleep, also known as active sleep. In stage 1, you transition from wakefulness to sleep.