AP PSYCHOLOGY

Detailed explanation-1: -The last two stage of non-REM sleep is when you sleep deeply. It’s hard to wake up from this stage of sleep. REM sleep happens about an hour to an hour and a half after falling asleep. REM sleep is when you tend to have vivid dreams.

Detailed explanation-2: -Dreams during REM sleep are typically more vivid, fantastical, and/or bizarre even though they may involve elements of waking life. By contrast, non-REM dreams tend to involve more coherent content that involves thoughts or memories grounded to a specific time and place.

Detailed explanation-3: -REM Stage R Phasic REM sleep contains bursts of rapid eye movements, while tonic REM sleep does not. Stage R occurs about 90 minutes after you fall asleep, and is the primary “dreaming” stage of sleep.

Detailed explanation-4: -Stage 3. Stage 3 sleep is also known as N3 or deep sleep, and it is harder to wake someone up if they are in this phase. Muscle tone, pulse, and breathing rate decrease in N3 sleep as the body relaxes even further. The brain activity during this period has an identifiable pattern of what are known as delta waves.

Detailed explanation-5: -During REM sleep, a person’s brain activity, breathing, heart rate, and blood pressure increase, and the eyes move rapidly while closed. The muscles in the arms and legs become temporarily unable to move. REM sleep is thought to play an important role in memory and learning.