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in Freud's theory, the level of consciousness in which thoughts and feelings are not conscious but are readily retrieveable to consciousness
according to Freud, a reservoir of mostly unacceptable thoughts, wishes, feelings, and memories. According to contemporary psychologists, information processing of which we are unaware
the level of consciousness devoted to processes completely unavailable to conscious awareness (e.g., fingernails growing)
controls your biological clock, regulating changes in blood pressure, body temperature, pulse, blood sugar levels, hormonal levels, activity levels, sleep and wakefulness over 24 hours in normal environment (25 hours in a place without normal night-day)
a nerve network in the brainstem that plays an important role in controlling arousal, sleep, wakefulness, and attention
stage 1 sleep
quick sleep stage with gradual loss of responsiveness to outside, drifting thoughts, and images (the hypnagogic state). EEGs show theta waves.
stage 2 sleep
lasts about 20 minutes; periodic "sleep spindles" or bursts of rapid, rhythmic brainwave activity; waken up easily, but definitely asleep; sleep talking can occur at this stage or any other sleep stage
stage 3 sleep
a sleep characterized by slow brain waves, with greater peaks and valleys in the wave pattern than in stage 2 sleep
stage 4 sleep
The deepest stage of sleep, during which we are least responsive to outside stimulation
a recurring sleep state during which rapid eye movements do not occur and dreaming does not occur
a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings
A sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, they occur during Stage 4 sleep, within two or three hours of falling asleep, and are seldom remembered
the theory that dreams result from the brain's attempt to make sense of random neural signals that fire during sleep
cognitive information processing theory
the theory that dreams are the interplay of brain waves and psychological functioning of interpretive parts of the mind, content of dream reflects dreamer's learned knowledge, process info of each day
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