 | Term | Definition |
| |
consciousness |
our awareness of ourselves and enviornment |
| |
biological rhythms |
periodi phsciological fluctuations |
| |
annual cycle |
yearly change/cycle |
| |
28-day cycles |
menstrual cycle, fluctuation every 28 days |
| |
24-hour cycle |
change in alertness, body temp, etc every 24 hours |
| |
90 min cycle |
stages of sleep |
| |
circadian rhytm |
the biological clock; regular body rhythms that occur on 24-hour cycle |
| |
REM sleep |
rapid eye movement sleep; a recurring sleep stage during which dreams occur; paradoxical sleep |
| |
alpha waves |
the relatively slow brain waves of a relaxed, awake stage |
| |
delta waves |
the large, slow brain waves associated with deep sleep |
| |
hallucinations |
false sensory experiences, such as seeing something in the absence of an external visual stimulus |
| |
sleep spindles |
burts of rapid rhytmic brain wave activity |
| |
insomnia |
recurring problems in falling or staying asleep |
| |
narcolepsy |
a sleep disorder characterized by uncontrollable sleep attacks |
| |
sleep apnea |
temporary cessations of breathing during sleep |
| |
night terrors |
high arousal and an appearnce of being terrified which asleep |
| |
dream |
sequence of images, emotions, and thoughts passing through a sleeping person's mind |
| |
lucid dreams |
dreamer can question and know they are dreaming and may control dreams |
| |
manifest content |
(freud)remembered story line of a dream |
| |
latent content |
(freud) underlying meaning of a dream; safety valve |
| |
information processing |
that dreams help sift, sort and fix that day's experiences in our memory |
| |
activation synthesis theory |
neural activity as random dreams, brains attempt to make sense of activity |
| |
REM rebound |
the tendency for REM sleep to increase following REM sleep deprivation |
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