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Rapid eye movement sleep. Rapid eye movement sleep ( REM sleep or REMS) is a unique phase of sleep in mammals (including humans) and birds, characterized by random rapid movement of the eyes, accompanied by low muscle tone throughout the body, and the propensity of the sleeper to dream vividly. The REM phase is also known as paradoxical sleep ...
Cognitive behavioral therapy, caffeine (to induce alertness), sleeping pills. Sleep deprivation, also known as sleep insufficiency[ 2] or sleeplessness, is the condition of not having adequate duration and/or quality of sleep to support decent alertness, performance, and health. It can be either chronic or acute and may vary widely in severity.
Microsleep. A microsleep is a sudden temporary episode of sleep or drowsiness which may last for a few seconds where an individual fails to respond to some arbitrary sensory input and becomes unconscious. [ 1][ 2] Episodes of microsleep occur when an individual loses and regains awareness after a brief lapse in consciousness, often without ...
While all types of sleep impairment affected mood, the study found reactions to emotional experiences were more negative after loss of rapid eye movement (REM) sleep when compared with losing slow ...
Non-24-hour sleep–wake disorder causes a person's sleep–wake cycle to move around the clock every day, to a degree dependent on the length of the cycle. This is known as free-running sleep. [citation needed] People with the disorder may have an especially hard time adjusting to changes in "regular" sleep–wake cycles, such as vacations ...
This makes understanding the effects of sleep deprivation very important. Many studies have been done from the early 1900s to document the effect of sleep deprivation. The study of REM deprivation began with William C. Dement around 1960. He conducted a sleep and dream research project on eight subjects, all male.
REM rebound is the lengthening and increasing frequency and depth of rapid eye movement (REM) sleep which occurs after periods of sleep deprivation. When people have been prevented from experiencing REM, they take less time than usual to attain the REM state. [1] When people are unable to obtain an adequate amount of REM sleep, the pressure to ...
Rapid eye movement behavior disorder occurs when there is a loss of normal voluntary muscle atonia during REM sleep resulting in motor behavior in response to dream content. It can be caused by adverse reactions to certain drugs or during drug withdrawal; however, it is most often associated with the elderly and in those with neurodegenerative ...