our awareness of ourselves and our environment
the biological clock; regular bodily rhythms that occur on a 24-hour cycle
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.
false sensory experiences, such as seeing something in the absence of an external visual stimulus
a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may laps directly into REM sleep often at inopportune times
a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings
According to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, 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
a social interaction in which one person (the hypnotist) suggests to another (the subject) that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur
drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions
opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety
drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine, and Ecstasy) that excite neural activity and speed up body functions.
psychedelic ("mind-manifesting") drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input
activation synthesis hypothesis
REM sleep triggers neural activity that evokes random visual memories, which our sleeping brain weaves into stories