Chapter 7 Flashcards
Biological Rhythms
Periodic physiological fluctuations controlled by “biological clocks”
Consciousness
Our awareness of ourselves and our environment
Circadian Rhythm
The biological clock; regular bodily rhythms (for example, of body temp and wakefulness) that occur on a 24 hour cycle
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 stay active.
Not moving
Alpha waves (awake)
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. Stage 4 (moving)
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 or 3 hours of falling asleep, and are seldom remembered.
Dream
A sequence of images, emotions and thoughts passing through a sleeping persons mind.
Freud’s Wish-Fulfillment: Manifest Content
The remembered story line of a dream (as distinct from its latent content)
Freud’s Wish-Fulfillment: Latent Content
The underlying meaning of a dream (as distinct from its manifest content)
Information Processing Theory
Dreams help us sort out the day’s events and consolidate our memories.
Physiological Function Theory
Regular brain stimulation from REM sleep may help develop and preserve neural pathways
Activation-Sythesis Theory
REM sleep triggers neural activity that evokes random visual memories, which our sleeping brain weaves into stories.