Rapid Eye Movement Behavior Disorder
Rapid eye movement sleep behaviour disorder (RBD) is a sleep disorder (more specifically a parasomnia) that involves abnormal behaviour during the sleep phase with rapid eye movement (REM sleep). It was first described in 1986.
The major and arguably only abnormal feature of RBD is loss of muscle atonia (paralysis) during otherwise intact REM sleep. This is the stage of sleep in which most vivid dreaming occurs. The loss of motor inhibition leads to a wide spectrum of behavioural release during sleep. This extends from simple limb twitches to more complex integrated movement, in which sufferers appear to be unconsciously acting out their dreams. These behaviours can be violent in nature and in some cases will result in injury to either the patient or their bed partner.
Read more about Rapid Eye Movement Behavior Disorder: Symptoms, Causes, Treatment, Epidemiology, In Non-humans
Famous quotes containing the words rapid, eye, movement, behavior and/or disorder:
“But parents can be understanding and accept the more difficult stages as necessary times of growth for the child. Parents can appreciate the fact that these phases are not easy for the child to live through either; rapid growth times are hard on a child. Perhaps it’s a small comfort to know that the harder-to-live-with stages do alternate with the calmer times,so parents can count on getting periodic breaks.”
—Saf Lerman (20th century)
“The master’s eye is the best fertilizer.”
—Gaius Plinius Secondus (c. 23–79)
“What stunned me was the regular assertion that feminists were “anti-family.” . . . It was motherhood that got me into the movement in the first place. I became an activist after recognizing how excruciatingly personal the political was to me and my sons. It was the women’s movement that put self-esteem back into “just a housewife,” rescuing our intelligence from the junk pile of “instinct” and making it human, deliberate, powerful.”
—Mary Kay Blakely (20th century)
“The ease with which problems are understood and solved on paper, in books and magazine articles, is never matched by the reality of the mother’s experience. . . . Her child’s behavior often does not follow the storybook version. Her own feelings don’t match the way she has been told she ought to feel. . . . There is something wrong with either her child or her, she thinks. Either way, she accepts the blame and guilt.”
—Elaine Heffner (20th century)
“Both of us felt more anxiety about the South—about the colored people especially—than about anything else sinister in the result. My hope of a sound currency will somehow be realized; civil service reform will be delayed; but the great injury is in the South. There the Amendments will be nullified, disorder will continue, prosperity to both whites and colored people will be pushed off for years.”
—Rutherford Birchard Hayes (1822–1893)