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Eugene Aserinsky and Nathaniel Kleitman observed REM sleep and concluded that it was the physiological manifestation of dreaming.
During tests, there were not substantial changes in deep sleep; however, it may reduce REM sleep.
Eugene Aserinsky (May 6, 1921 – July 22, 1998), a pioneer in sleep research, was a graduate student at University of Chicago in 1953 when he discovered REM sleep.
Search Activity Concept (SAC) is a psychophysiological concept that integrates subject’s behavior, resistance to stress and deteriorating factors, pathogenetic mechanisms of different mental and psychosomatic disorders, REM sleep functions, brain monoamines activity and brain laterality.
In rats, hippocampal theta is seen mainly in two conditions: first, when an animal is running, walking, or in some other way actively interacting with its surroundings; second, during REM sleep (Vanderwolf, 1969).
The idea came to Howell-Smith, an automotive engineer residing in Australia, during REM sleep in 1995.
In most cases of infantile spasms, hypsarrhythmia either disappears or improves during a cluster of spasms and/or REM sleep.
Stimuli that are rare and intrusive are more likely to elicit the classic parietal P300 in REM sleep.
Research to date indicates that P300 can be recorded during the transition to sleep and then reappears in REM sleep.
Amphetamine and other stimulants can create psychotic episodes which may be defined as bursts of dream activity erupting spontaneously into waking states, this is not due to the substance itself but rather a result of the prolonged suppression of cholinergic activity and REM sleep due to amphetamine or stimulant abuse.
Rapid eye movement sleep behavior disorder (RBD) is a sleep disorder (more specifically a parasomnia) that involves abnormal behaviour during the sleep phase with rapid eye movement (REM) sleep.
Furthermore, it can also occur during REM sleep, at which time it represents a motor breakthrough (see sleep paralysis) of dream speech: words spoken in a dream are spoken out loud.