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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 core body and brain temperatures increase during REM sleep and skin ...
Rapid eye movement sleep behavior disorder or REM sleep behavior disorder (RBD) is a sleep disorder in which people act out their dreams. It involves abnormal behavior during the sleep phase with rapid eye movement (REM) sleep.
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Eye movement includes the voluntary or involuntary movement of the eyes. Eye movements are used by a number of organisms (e.g. primates, rodents, flies, birds, fish, cats, crabs, octopus) to fixate, inspect and track visual objects of interests. A special type of eye movement, rapid eye movement, occurs during REM sleep.
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]
A dog's use of eye contact and eye movements can communicate emotions and intentions. Prolonged eye contact or staring are indicators of aggression, especially when combined with body stiffness. [15] Avoiding eye contact, or looking down, is a submissive dog behaviour. [12]
Sleep onset is the transition from wakefulness into sleep. Sleep onset usually transits into non-rapid eye movement sleep (NREM sleep) but under certain circumstances (e.g. narcolepsy) it is possible to transit from wakefulness directly into rapid eye movement sleep (REM sleep).
Trace of saccades of the human eye on a face while scanning Saccades during observation of a picture on a computer screen. A saccade (/ s ə ˈ k ɑː d / sə-KAHD; French:; French for 'jerk') is a quick, simultaneous movement of both eyes between two or more phases of focal points in the same direction. [1]