Sleep Basics
A periodic, natural loss of consciousness.
What is sleep?
Device that records brain wave activity.
What is EEG (electroencephalogram)?
Stage where vivid dreams commonly occur.
What is REM sleep?
Difficulty falling or staying asleep.
What is insomnia?
A sequence of images, emotions, and thoughts during sleep.
What is a dream?
The body’s 24-hour biological clock.
What is circadian rhythm?
Brain waves seen when you are relaxed but awake.
What are alpha waves?
All sleep stages except REM.
What is NREM sleep?
Sudden uncontrollable sleep attacks.
What is narcolepsy?
The remembered storyline of a dream.
What is manifest content?
Disruption of your biological clock after traveling across time zones.
What is jet lag?
Deep sleep brain waves that are slow and large.
What are delta waves?
Stage 1 sleep where you may feel like you are falling.
What is NREM-1?
Disorder involving stopped breathing during sleep.
What is sleep apnea?
The hidden meaning behind a dream.
What is latent content?
Techniques like limiting caffeine and keeping a sleep schedule to improve sleep.
What is sleep hygiene?
Brain structure that controls circadian rhythms and responds to light.
What is the suprachiasmatic nucleus (SCN)?
Stage with sleep spindles.
What is NREM-2?
Walking or performing activities while asleep.
What is somnambulism?
Theory that dreams result from the brain making sense of random neural activity.
What is activation-synthesis?
A hormone that helps regulate sleep-wake cycles and is triggered by darkness.
What is melatonin?
The brain structure that triggers melatonin release via the pineal gland.
What is the SCN?
Deep sleep stage with delta waves.
What is NREM-3?
Acting out dreams physically during REM sleep.
What is REM Behavior Disorder (RBD)?
Theory that sleep helps store and organize memories.
What is consolidation theory?