?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Association+of+salivary-assessed+oxytocin+and+cortisol+levels+with+time+of+night+and+sleep+stage&rft.creator=Blagrove%2C+M.&rft.creator=Fouquet%2C+N.+C.&rft.creator=Baird%2C+A.+L.&rft.creator=Pace-Schott%2C+E.+F.&rft.creator=Davies%2C+A.+C.&rft.creator=Neuschaffer%2C+J.+L.&rft.creator=Henley-Einion%2C+J.+A.&rft.creator=Weidemann%2C+Christoph+T.&rft.creator=Thome%2C+J.&rft.creator=McNamera%2C+P.&rft.creator=Turnbull%2C+O.+H.&rft.subject=Physiological+Psychology&rft.subject=Psychobiology&rft.description=There+have+been+proposals+for+REM+to+have+a%0D%0Afunction+of+emotional+memory+consolidation%2C+and+also+for%0D%0AREM+sleep+to+be+involved+in+the+promotion+of+attachment%0D%0Abehaviour.+The+hormones+cortisol+and+oxytocin%2C+respec-%0D%0Atively%2C+may+be+involved+in+these+proposed+REM+sleep%0D%0Afunctions.+However%2C+there+are+conflicting+reports+on+whe-%0D%0Ather+levels+of+cortisol+differ+between+sleep+stages+when%0D%0Atime+since+sleep+onset+(SSO)+is+controlled%2C+and+virtually+no%0D%0Aliterature+on+whether+levels+of+oxytocin+differ+between%0D%0Asleep+stages.+This+study+thus+investigated+the+changes+in%0D%0Alevels+of+oxytocin+(OT)+and+cortisol+(CT)+across+the+night%2C%0D%0Aand+whether+these+levels+differ+between+REM+and+N2+sleep%0D%0Awhen+time+SSO+is+controlled.+20+participants+(10+males%2C+10%0D%0Afemales%2C+mean+age+%3D+20.45%2C+SD+%3D+2.01)+were+awakened%0D%0A10+min+into+REM+and+N2+sleep+periods+in+the+sleep+laboratory+and+gave+saliva+samples+which+were+assayed+for%0D%0AOT+and+CT.+Levels+of+OT+were+relatively+constant+across%0D%0Athe+night%2C+whereas+CT+increased+significantly.+REM+and+N2%0D%0Adid+not+differ+significantly+neither+for+OT+nor+for+CT.+The%0D%0Astudy+has+implications+for+models+of+sleep-dependent%0D%0Amemory+consolidation+that+incorporate+the+late+sleep%0D%0Aincrease+in+cortisol+as+a+functional+component+of+memory%0D%0Aconsolidation%2C+and+also+for+the+medical+diagnostic+assaying%0D%0Aof+OT+during+sleep.%0D%0A%0D%0A&rft.date=2012&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F8720%2F1%2FBlagroveEtAl2012.pdf&rft.identifier=++Blagrove%2C+M.+and+Fouquet%2C+N.+C.+and+Baird%2C+A.+L.+and+Pace-Schott%2C+E.+F.+and+Davies%2C+A.+C.+and+Neuschaffer%2C+J.+L.+and+Henley-Einion%2C+J.+A.+and+Weidemann%2C+Christoph+T.+and+Thome%2C+J.+and+McNamera%2C+P.+and+Turnbull%2C+O.+H.++(2012)+Association+of+salivary-assessed+oxytocin+and+cortisol+levels+with+time+of+night+and+sleep+stage.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F8720%2F