Chapter 7 Vocab Flashcards
Biological rhythms
Periodic physiological fluctuations
Consciousness
Our awareness of ourselves and our environment
Circadian Rhythm
The biological clock; regular bodily rhythms that occur on a 24-hour cycle
Non-Rem Sleep
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REM Sleep
Rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed but other body systems are active
Alpha waves
The relatively slow brain waves of a relaxed, awake state
Sleep
Periodic, natural, reversible loss of consciousness- as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation
Hallucinations
False sensory experiences, such as seeing something in the absence of an external visual stimulus
Delta waves
The large, slow brain waves associated with deep sleep
Insomnia
Recurring problems in falling or staying asleep
Narcolepsy
A sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times.
Sleep apnea
A sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings
Night terrors
A sleep disorder characterized by high arousal and an appearance of being terrified;unlike nightmares, night terrors occur during stage 4 sleep, within 2-3 hours of falling asleep, and are seldom remembered
Dream
A sequence of images, emotions, and thoughts passing through a sleeping persons mind. Notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamers delusional acceptance of the content and later difficulties remembering it
Manifest Content
According to Freud, the remembered story line of a dream
Latent Content
According to Freud, the underlying meaning of a dream. Functions as a safety valve.
Dream Theories
Freud's Wish-fulfillment Information-processing Physiological function Activation-synthesis Cognitive theory
Freud’s Wish-fulfillment
Dreams provide a “psychic safety valve”- expressing otherwise unacceptable feelings- contain manifest content and a deeper layer of latent content-a hidden meaning
Information-processing
Dreams help us sort out the days events and consolidate our memories
Physiological function
Regular brain stimulation from REM sleep may help develop and preserve neural pathways