The REM Sleep Behavior Disorder Single-Question Screen (RBD1Q) is a one-question screening tool for dream enactment behaviors associated with the

parasomnia Parasomnias are a category of sleep disorders that involve abnormal movements, behaviors, emotions, perceptions, and dreams that occur while falling asleep, sleeping, between sleep stages, or during arousal from sleep. Parasomnias are dissociate ...

REM sleep behavior disorder Rapid eye movement sleep behavior disorder or REM 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. The major feature of ...

(RBD). It screens for RBD with a simple yes/no response.

Format

The RBD1Q queries dream-enactment behavior of RBD with a single yes/no question:

"Have you ever been told, or suspected yourself, that you seem to 'act out your dreams' while asleep (for example, punching, flailing your arms in the air, making running movements, etc.)?"

It has a sensitivity of 94% and a specificity of 87% in detecting RBD.

Applications

The RBD1Q can be used to establish a diagnosis of

Parkinson's disease Parkinson's disease (PD), or simply Parkinson's, is a long-term degenerative disorder of the central nervous system that mainly affects the motor system. The symptoms usually emerge slowly, and as the disease worsens, non-motor symptoms becom ...

and

dementia with Lewy bodies Dementia with Lewy bodies (DLB) is a type of dementia characterized by changes in sleep, behavior, cognition, movement, and regulation of automatic bodily functions. Memory loss is not always an early symptom. The disease worsens over time ...

Development

Other screening tools for RBD are lengthy and difficult to use for epidemiological studies, needed to determine the prevalence of RBD. Participants for a case-control study were recruited from twelve centers of the International REM Sleep Behavior Disorder Study Group between 2008 and 2011. The 484 participants (242 individuals with

polysomnogram Polysomnography (PSG), a type of sleep study, is a multi-parameter study of sleep and a diagnostic tool in sleep medicine. The test result is called a polysomnogram, also abbreviated PSG. The name is derived from Greek and Latin roots: the Gree ...

-confirmed RBD and 242 controls) completed the screen. Dream-enactment behavior was established by history or video recording, and the absence of

REM sleep Rapid eye movement sleep (REM sleep or REMS) is a unique phase of sleep in mammals 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 viv ...

muscle paralysis (atonia) was confirmed by polysomnogram, according to the International Classification of Sleep Disorders-2.

References

{{reflist Sleep disorders Mental disorders screening and assessment tools Neuropsychological tests Medical scoring system Parkinson's disease Cognitive disorders Dementia