Sleep

Consciousness

Awareness of ourselves and surrounding

Beta waves

Normal, Awake

Alpha Waves

Slow down, relax (stage 1)

Theta Waves

Onset of sleep (stage 1 or 2)

Delta Waves

Truly Asleep (stage 3-4)

How long to go stage 1 to REM Sleep

90 mins

REM Sleep

Intense brain activity, resembling waking states.

Reoccurs throughout the nights.

REM Rebound

Deprived of REM sleep during night, REM sleep increases next night.

REM EEG Pattern

High freq. Beta Waves

Paradoxical Sleep

Person loses muscle tension and movement.

Circadian Rhythm

24Hr body natural clock.

Jet Lag

Deal with the Circadian Rhythm

Insomnia

Difficulty falling and/or staying asleep

Narcolepsy

Sudden sleep attacks

REM Sleep behavior disorder

The person is not being paralyzed in REM sleep, causing them to move while they dream.

Somnambulism (Sleepwalking)

Stages 3 and 4, prominent in Children

Sleep Apnea

Trouble breathing while sleeping, snoring.

Information processing Theory

Attempting to work through things that happened recently

Activation Synthesis Theory

Brain randomly activates throughout the night, and dreams are interpretations of those activation.