REM Sleep Behavior DisorderMultiple System AtrophySleep, REMSleep-Wake Transition DisordersClonazepamDreamsPolysomnographyNarcolepsyLewy Body DiseaseAcetogeninsParkinson DiseaseREM Sleep ParasomniasSleepVideo RecordingElectromyographyParasomniasNeurodegenerative DiseasesCataplexyAttention Deficit and Disruptive Behavior DisordersOlfaction DisordersOlivopontocerebellar AtrophiesSleep DisordersAutonomic Nervous System DiseasesSeverity of Illness IndexShy-Drager SyndromeSleep StagesMotor ActivityGuadeloupeSleep Disorders, IntrinsicNeurologic ExaminationElectroencephalographyWakefulnessBrain StemParkinsonian DisordersSupranuclear Palsy, ProgressiveEye Movement Measurementsalpha-Synuclein