States of Consciousness

2. Sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times.
5. False sensory experiences, such as seeing something in the absence of an external visual stimulus.
11. A series of thoughts, images, or emotions occurring during sleep.
12. Sleep _____: a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings
13. Psychedelic ("mind-manifesting") drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input.
14. The diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug's effect.
17. Drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions.

1. Sleep disorder characterized by recurring problems in falling or staying asleep.
3. The condition of walking or performing some other activity without awakening; also known as sleepwalking - occurs during NREM-3.
4. __________ Rhythm: the biological clock; regular bodily functions (for example, of temperature and wakefulness) that occur on a 24-hour cycle.
6. Drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine, and Ecstasy) that excite neural activity and speed up body functions.
7. The discomfort and distress that follow discontinuing the use of an addictive drug.
8. Drugs that alter perceptions and mood
9. Awareness of ourselves and our environments
10. A split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others.
15. Compulsive drug craving and use, despite adverse consequences. May also occur for certain behaviors (e.g., gambling.
16. Periodic, natural, reversible loss of consciousness - as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation.