The diagnosis of RBD in narcolepsy patients is determined by clinical history , including that of the partner and confirmed by polysomnography ( PSG ) , because of a loss of REM atonia with excessive muscle tone .
Patients with narcolepsy are also more likely to develop RBD.The diagnosis is based on clinical history , including partner 's account and needs to be confirmed by polysomnography ( PSG ) , mainly for its accuracy in differentiating RBD from other sleep disorders , since there is a loss of REM atonia with excessive muscle tone .
Parasomnia