Rapid eye movement sleep behavior disorder Rapid eye movement sleep behavior disorder Rapid eye movement sleep behavior disorder (RBD) is a sleep disorder (more specifically a parasomnia) in which people act out their dreams. It involves abnormal behavior during the sleep phase with rapid eye movement (REM) sleep. The major feature of RBD is loss of muscle atonia (i.e., the loss of paralysis) during otherwise intact REM sleep (during which paralysis is not only normal but necessary). REM sleep is the stage of sleep in which most vivid dreaming occurs. The loss of motor inhibition leads to a wide spectrum of behavioral release during sleep. This
Eye movement desensitization and reprocessing Eye movement desensitization and reprocessing Eye movement desensitization and reprocessing (EMDR) is a form of psychotherapy in which the person being treated is asked to recall distressing images while generating one type of bilateral sensory input, such as side-to-side eye movements or hand tapping. It is included in several guidelines for the treatment of post-traumatic stress disorder (PTSD). The way it might work is uncertain. It was developed by Francine Shapiro in the 1990s and has been controversial, with some critics calling it pseudoscience and there have been ongoing concerns over the quality of evidence, contradictory findings, significant rates of