Chapter 6 Vocab
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23 terms
Terms | Definitions |
|---|---|
 Construct | a concept requiring a belief in something that cannot be seen or touched but that seems to exist |
| Consciousness | the organism's awareness of, or possibility of knowing, what is happening inside or outside itself |
| Subconscious | consciousness just below our present awareness |
| Unconscious | thoughts or desires about which we have no direct knowledge |
| Biological clocks | internal chemical units that control regular cycles in parts of the body |
| Free-running cycles | cycles set up by biological clocks that are under their own control, ignoring the environment |
| Entrainment | the process of altering the free-running cycle to fit a different rhythm |
| Circadian rhythm | sequences of behavioral changes that occur every 24 hours |
| Twilight state | relaxed state just before we fall asleep |
| REM sleep | rapid eye movement sleep; the stage of sleep when dreams occur |
| Beta waves | rapid brain waves; appear when a person is awake |
| Alpha waves | fairly relaxed brain waves that occur in stage 1, just before we go to sleep |
| Delta waves | slow, lazy, deep-sleep brain waves |
| NREM sleep | non-rapid eye movement sleep; sleep involving partial thoughts, images, or stories that are poorly organized |
| Nightmare | frightening dream that occurs during REM |
| REM rebound | increase in the number of dreams after being deprived of REM sleep |
| Night terror | a horrible dream occurring during NREM, when the body is not prepared for it; also called an incubus attack |
| Insomnia | the inability to get enough sleep |
| Narcolepsy | disorder in which a person falls instantly into sleep no matter what is going in the environment |
| Sleep apnea | condition in which a person's breathing often stops while the person is asleep |
| Hypnosis | a state of relaxation in which attention is focused on certain objects, acts, or feelings |
| Trance | another word for the state of deep relaxation that can occur during hypnosis |
| Meditation | a form of self-control in which the outside world is cut off from consciousness |
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