Front

Revised activation-synthesis explanation of dreams: waking information influences dream synthesis.

Back

activation-information-mode model AIM hypothesis (AIM)

Front

Sleep disorder causing sudden REM sleep during the day.

Back

narcolepsy

Front

Inability to sleep well.

Back

insomnia

Front

Long, slow brain waves indicating the deepest sleep stage.

Back

delta waves

Front

Brain waves indicating relaxation or light sleep.

Back

alpha waves

Front

Stages of sleep excluding REM.

Back

non-REM (NREM) sleep

Front

Theory that sleep is vital for physical health, replenishing chemicals and repairing cells.

Back

restorative theory

Front

Theory of sleep suggesting animals and humans evolved sleep patterns to evade predators by sleeping when they are most active.

Back

adaptive theory

Front

Bodily rhythm over 24 hours.

Back

circadian rhythm

Front

Shift in mental activity quality compared to waking consciousness.

Back

altered states of consciousness