Module 18 Flashcards
Periodic physiological fluctuations.
Biological rhythms
Our awareness of ourselves and our environment.
Consciousness
The biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24 hour cycle.
Circadian
Rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active.
REM sleep
The relatively slow brain waves of a very awake state.
Alpha waves
Periodic, natural, reversible loss of consciousness– as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation. (Adapted from DeMent, 1999.)
Sleep
False sensory experiences, such as seeing something in the absence of an external visual stimulus.
Hallucinations
The large, slow brain waves associated with deep sleep.
Delta waves
Recurring problems in falling or staying asleep.
Insomnia
A sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at an opportune times.
Narcolepsy
A sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings.
Sleep apnea
A sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terrors occur during Stage 4 sleep, within two or three hours of falling asleep, or are seldom remembered.
Night terrors
A sequence of images, emotions, and thoughts passing through the sleeping persons mind. Dreams are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer’s delusional acceptance of the content and later difficulties remembering it.
Dream
According to Freud, the remembered storyline of the dream (as distinct from its latent, or hidden, content).
Manifest content
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.
Latent content
