Search results for "Sleep cycle"

showing 1 items of 1 documents

Is the nonREM–REM sleep cycle reset by forced awakenings from REM sleep?

2002

In selective REM sleep deprivation (SRSD), the occurrence of stage REM is repeatedly interrupted by short awakenings. Typically, the interventions aggregate in clusters resembling the REM episodes in undisturbed sleep. This salient phenomenon can easily be explained if the nonREM–REM sleep process is continued during the periods of forced wakefulness. However, earlier studies have alternatively suggested that awakenings from sleep might rather discontinue and reset the ultradian process. Theoretically, the two explanations predict a different distribution of REM episode duration. We evaluated 117 SRSD treatment nights recorded from 14 depressive inpatients receiving low dosages of Trimipram…

Activity CyclesMaleSelective REM sleep deprivationPolysomnographyAudiologyBehavioral NeuroscienceNIGHTSleep onset REM episodeDEPRIVATIONSlow-wave sleepmedia_commonDEPRESSIVE PATIENTSmedicine.diagnostic_testDepressionmusculoskeletal neural and ocular physiologyTRIMIPRAMINEMiddle AgedAntidepressive AgentsAnesthesiaLATENCIESFemaleWakefulnessArousalPsychologyAlgorithmspsychological phenomena and processesmedicine.drugVigilance (psychology)Adultmedicine.medical_specialtyREM episodePolysomnographymedia_common.quotation_subjectRapid eye movement sleepSleep REMExperimental and Cognitive PsychologyNon-rapid eye movement sleepmental disordersmedicineHumansWakefulnessMODULATIONUltradian rhythmINTERRUPTIONARTIFICIAL NEURAL NETWORKSRECOGNITIONTrimipramineUltradian processSleep cycleSleepEYE-MOVEMENT SLEEPPhysiology & Behavior
researchProduct