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a state of awareness, including a person's feelings, sensations, ideas, and perceptions
Altered states of consciousness
Changes in awareness produced by sleep, meditation, hypnosis, and drugs
the biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle
a cluster of neurons in the hypothalamus that receives input from the retina regarding light and dark cycles and is involved in regulating the biological clock
circadian theory of sleep
sleep evolved in humans out of harms way during the night (AKA evolutionary theory)
from light to deeper sleep. sleep spindels - alternating calm and flashes of intense activity
a catergory of sleep disorders characterized by arousal or activation during sleep or sleep transitions; inclues sleepwalking, night terrors, sleep bruxism(teeth grinding), sleep-related eating disorder, and REM sleep behavior disorder
Sleep disorders characterized by disturbances in the amount, quality or timing of sleep. Example include Insomnia, Sleep Apnea, and Narcolepsy
sleep abnormalities, including difficulty in falling asleep and wakefulness through the night
a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings
the theory that conscious awareness of dreaming is a learnable skill that enables dreamers to control the direction and content of their dreams
according to Freud, the underlying meaning of a dream (as distinct from its manifest content). Freud believed that a dream's latent content functions as a safety valve.
activation-synthesis hypothesis of dreaming
The hypothesis that dreams are the brain's attempt to make sense of the random firing of brain cells during REM sleep.
evolutionary theory of dreaming
vivid dreams enable people to rehearse skills needed to deal with threatening events
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