ArousalSleep Arousal DisordersSleepSleep StagesEroticaPolysomnographyWakefulnessLibidoGalvanic Skin ResponseHibernationElectroencephalographyEmotionsSleep, REMAffectOrgasmPhotoplethysmographyQuestionnairesSleep DeprivationCircadian RhythmSleep Apnea, ObstructiveSleep Apnea SyndromesHeart RateAnalysis of VarianceSleep DisordersEuphoriaSexual Dysfunctions, PsychologicalSleep Initiation and Maintenance DisordersRespiratory RateSomnambulismElectrooculographySciuridaeTime FactorsStress, PsychologicalReaction TimePhotic StimulationPsychomotor PerformanceParasomniasNeuropeptidesBrainCognitionAttentionDouble-Blind MethodNocturnal Myoclonus SyndromeEstivationElectromyographyAutonomic Nervous SystemRespirationDisorders of Excessive SomnolencePersonal SatisfactionAnxietyCross-Over StudiesBody TemperatureMasturbationPerceptionMagnetic Resonance ImagingIndividualityHypothalamic Area, LateralAcoustic StimulationAlcoholic IntoxicationQuality of LifeTrazodoneActigraphyPenile ErectionNeuropsychological TestsOrexin ReceptorsFatigueTinnitusHabituation, PsychophysiologicPupilPain MeasurementHypnotics and SedativesReproducibility of ResultsBrain MappingLocus CoeruleusAwarenessSelf-AssessmentSeverity of Illness IndexJudgmentClitorisPlethysmographyPsychophysiologyCerebral CortexPedophiliaPulmonary VentilationHappinessCentral Nervous System StimulantsCuesReceptors, NeuropeptideSexual Dysfunction, PhysiologicalAmygdalaSelf ConceptBehaviorSleep Apnea, CentralMemoryRespiratory Physiological PhenomenaTreatment OutcomeFearVisual PerceptionMotor ActivityVagina