AP PSYCHOLOGY

Detailed explanation-1: -Stage 1 NREM sleep During this stage, it is common to experience strange sensations known as hypnogogic hallucinations, such as a feeling of falling and sudden muscle contractions. This stage typically lasts between 5-10 minutes before the individual progresses to the next stages of sleep.

Detailed explanation-2: -Hypnagogic hallucinations are possible during stage 1 of non-REM as an individual transitions from wakefulness to sleep. Hypnagogic hallucinations are described as dream-like episodes affected by stimuli of the immediate environment (like light and sounds) and by events happening briefly before sleep onset.

Detailed explanation-3: -Stage 1 non-REM sleep is the changeover from wakefulness to sleep. During this short period (lasting several minutes) of relatively light sleep, your heartbeat, breathing, and eye movements slow, and your muscles relax with occasional twitches. Your brain waves begin to slow from their daytime wakefulness patterns.

Detailed explanation-4: -Stage 1. Stage 1, also called N1, is essentially when a person first falls asleep. This stage normally lasts just one to seven minutes. During N1 sleep, the body has not fully relaxed, though the body and brain activities start to slow with periods of brief movements.