AP Psych Unit 1 - Dreams & Sleep

Dreams & Sleep (Disorders)

Awake/Alert

Beta waves

Awake/Relaxed

Alpha waves

NREM-1

Theta Waves - Transition between awake and asleep, hypnagogic sensations

NREM-2

Theta waves - loose muscles, half of all sleep, eye res, sleep spindles

NREM-3 & 4

Delta waves - Deepest Sleep

REM

Rapid Eye Movement - dreaming, brain is electrically active, cycle reverses, vital signs rise

Restorative Theory

Dreams replenish body systems, sort memory

Adaptive Theory

Dreams keep us out of trouble

Conserving Theory

Dreams/Sleeping saves energy

Activating Synthesis Model

The Limbic system is randomly firing and dreams are the brain trying to make sense of it

Memory Consolidation - (Theory)

Dreams help sort out the day’s events and consolidate memories

Insomnia

Recurring problems falling or staying asleep

Narcolepsy

Uncontrollable sleep attacks, sufferer may lapse directly into REM sleep

Sleep Apnea

Temporary cessation of breathing during sleep and repeated momentary awakening 

REM Sleep Behavior Disorder

Physically acting out dreams due to not being immobilized during REM sleep

Somnambulism

“Sleepwalking” - More beign than REM Sleep Behavior Disorder, typically just wandering

Circadian Rhythm

The biological clock that regulates mood, temperature, and arousal through a 24-hour cycle