{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,2]],"date-time":"2026-01-02T19:38:19Z","timestamp":1767382699871,"version":"3.44.0"},"reference-count":49,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2018,5,1]],"date-time":"2018-05-01T00:00:00Z","timestamp":1525132800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2018,5,1]],"date-time":"2018-05-01T00:00:00Z","timestamp":1525132800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Psychiatry Research"],"published-print":{"date-parts":[[2018,5]]},"DOI":"10.1016\/j.psychres.2018.02.057","type":"journal-article","created":{"date-parts":[[2018,3,3]],"date-time":"2018-03-03T11:55:58Z","timestamp":1520078158000},"page":"125-129","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":7,"special_numbering":"C","title":["Objective measures of sleep in fibromyalgia syndrome: Relationship to clinical, psychiatric, and immunological variables"],"prefix":"10.1016","volume":"263","author":[{"given":"Bu\u011fra","family":"\u00c7etin","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H\u00fcseyin","family":"G\u00fcle\u00e7","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hayal Ergin","family":"Tokta\u015f","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"\u00d6zg\u00fcr","family":"Uluta\u015f","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seda G\u00fcle\u00e7","family":"Y\u0131lmaz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Turgay","family":"\u0130sbir","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.psychres.2018.02.057_bib1","first-page":"107","article-title":"Pittsburgh uyku kalitesi \u0130ndeksi\u2019nin ge\u00e7erli\u011fi ve g\u00fcvenirli\u011fi","volume":"7","author":"A\u011farg\u00fcn","year":"1996","journal-title":"Turk. Psikiyatr. Derg."},{"key":"10.1016\/j.psychres.2018.02.057_bib2","first-page":"261","article-title":"Epworth uykululuk \u00f6l\u00e7e\u011finin ge\u00e7erli\u011fi ve g\u00fcvenirli\u011fi","volume":"10","author":"A\u011farg\u00fcn","year":"1999","journal-title":"Turk. Psikiyatr. Derg."},{"key":"10.1016\/j.psychres.2018.02.057_bib3","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1016\/S0304-3959(96)03226-5","article-title":"Sequential daily relations of sleep, pain intensity, and attention to pain among women with fibromyalgia","volume":"68","author":"Affleck","year":"1996","journal-title":"Pain"},{"key":"10.1016\/j.psychres.2018.02.057_bib4","first-page":"989","article-title":"Measurement of feelings using visual analog scales","volume":"62","author":"Aitken","year":"1969","journal-title":"Proc. R. Soc. Med."},{"key":"10.1016\/j.psychres.2018.02.057_bib5","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1037\/h0084280","article-title":"Sleep physiology and pcychological aspects of fibrositis (fibromyalgia) syndrome","volume":"45","author":"Anch","year":"1991","journal-title":"Can. J. Psychol."},{"key":"10.1016\/j.psychres.2018.02.057_bib6","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1097\/00002508-198812000-00007","article-title":"Subjective sleep disturbance in chronic back pain","volume":"4","author":"Atkinson","year":"1988","journal-title":"Clin. J. Pain."},{"key":"10.1016\/j.psychres.2018.02.057_bib7","doi-asserted-by":"crossref","first-page":"1304","DOI":"10.3899\/jrheum.081090","article-title":"Minimal clinically important difference in the fibromyalgia impact questionnaire","volume":"36","author":"Bennet","year":"2009","journal-title":"J. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib8","doi-asserted-by":"crossref","first-page":"961","DOI":"10.1002\/art.23828","article-title":"Sleep disturbances in fibromyalgia syndrome: relationship to pain and depression","volume":"59","author":"Bigatti","year":"2008","journal-title":"Arthritis Rheum."},{"key":"10.1016\/j.psychres.2018.02.057_bib9","first-page":"1113","article-title":"Sleep cycles and alpha\u2013delta sleep in fibromyalgia syndrome","volume":"21","author":"Branco","year":"1994","journal-title":"J. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib10","first-page":"728","article-title":"The fibromyalgia impact questionnaire: development and validation","volume":"18","author":"Burckhardt","year":"1991","journal-title":"J. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib11","doi-asserted-by":"crossref","first-page":"689","DOI":"10.1016\/j.sleep.2007.10.022","article-title":"Sleep stage dynamics in fibromyalgia patients and controls","volume":"9","author":"Burns","year":"2008","journal-title":"Sleep. Med."},{"key":"10.1016\/j.psychres.2018.02.057_bib12","doi-asserted-by":"crossref","first-page":"193","DOI":"10.1016\/0165-1781(89)90047-4","article-title":"The Pittsbugh Sleep Quality Index: a new instrument for psychiatric practice and research","volume":"28","author":"Buysse","year":"1989","journal-title":"Psychiatry Res."},{"key":"10.1016\/j.psychres.2018.02.057_bib13","doi-asserted-by":"crossref","first-page":"513","DOI":"10.1038\/nrrheum.2015.56","article-title":"The role of sleep in pain and fibromyalgia","volume":"11","author":"Choy","year":"2015","journal-title":"Nat. Rev. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib14","doi-asserted-by":"crossref","first-page":"2009","DOI":"10.3899\/jrheum.090051","article-title":"Objective measures of disordered sleep in fibromyalgia","volume":"36","author":"Chervin","year":"2009","journal-title":"J. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib15","first-page":"348","article-title":"Polysomnography in fibromyalgia patients","volume":"37","author":"Clauw","year":"1994","journal-title":"Arthritis Rheum."},{"key":"10.1016\/j.psychres.2018.02.057_bib16","doi-asserted-by":"crossref","first-page":"852","DOI":"10.1097\/AJP.0000000000000040","article-title":"The impact of pain on anxiety and depression is mediated by objective and subjective sleep characteristics in fibromyalgia patients","volume":"30","author":"Diaz-Piedra","year":"2014","journal-title":"Clin. J. Pain"},{"key":"10.1016\/j.psychres.2018.02.057_bib17","doi-asserted-by":"crossref","first-page":"917","DOI":"10.1016\/j.sleep.2015.03.011","article-title":"Sleep disturbances in fibromyalgia syndrome: the role of clinical and polysomnographic variables explaining poor sleep quality in patients","volume":"16","author":"Diaz-Piedra","year":"2015","journal-title":"Sleep. Med."},{"key":"10.1016\/j.psychres.2018.02.057_bib18","doi-asserted-by":"crossref","first-page":"629","DOI":"10.1093\/rheumatology\/34.7.629","article-title":"Sleep intensity in fibromyalgia: focus on the microstructure of the sleep process","volume":"34","author":"Drewes","year":"1995","journal-title":"Br. J. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib19","doi-asserted-by":"crossref","first-page":"233","DOI":"10.1016\/0013-4694(73)90250-2","article-title":"Alpha delta sleep","volume":"34","author":"Hauri","year":"1973","journal-title":"Electroencephalogr. Clin. Neurophysiol."},{"key":"10.1016\/j.psychres.2018.02.057_bib20","first-page":"367","article-title":"Sleep in fibromyalgia patients: subjective and objective findings","volume":"315","author":"Harding","year":"1998","journal-title":"Am. J. Med. Sci."},{"key":"10.1016\/j.psychres.2018.02.057_bib21","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1016\/0013-4694(91)90122-K","article-title":"Alpha-like EEG activity in non-REM sleep and the fibromyalgia (fibrositis) syndrome","volume":"79","author":"Horne","year":"1991","journal-title":"Electoencephalogr. Clin. Neurophysiol."},{"key":"10.1016\/j.psychres.2018.02.057_bib22","first-page":"1756","article-title":"Sleep and other symptoms in primary fibrolmyalgia syndrome and healthy controls","volume":"20","author":"Jennum","year":"1993","journal-title":"J. Rheum."},{"key":"10.1016\/j.psychres.2018.02.057_bib23","doi-asserted-by":"crossref","first-page":"540","DOI":"10.1093\/sleep\/14.6.540","article-title":"A new method for measuring daytime sleepiness: the Epworth sleepiness scale","volume":"14","author":"Johns","year":"1991","journal-title":"Sleep"},{"key":"10.1016\/j.psychres.2018.02.057_bib24","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1016\/j.genhosppsych.2010.03.006","article-title":"Patients health questionnaire somatic, anxiety, and depressive symptom scales: a systematic review","volume":"32","author":"Kroenke","year":"2010","journal-title":"Gen. Hosp. Psychiatry"},{"key":"10.1016\/j.psychres.2018.02.057_bib25","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1097\/00006842-197507000-00008","article-title":"Musculoskeletal symptoms and non-REM sleep disturbance in patients with \"fibrositis syndrome\" and healthy subjects","volume":"37","author":"Moldofsky","year":"1975","journal-title":"Psychosom. Med."},{"key":"10.1016\/j.psychres.2018.02.057_bib26","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1016\/0013-4694(80)90324-7","article-title":"The relationship of alpha and delta EEG frequencies to pain and mood in \u201cfibrositis\u201d patients treated with chlorpromazine and l-tryptophan","volume":"50","author":"Moldofsky","year":"1980","journal-title":"Electroencephalogr. Clin. Neurophysiol."},{"key":"10.1016\/j.psychres.2018.02.057_bib27","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/S0889-857X(21)00035-1","article-title":"Sleep and fibrositis syndrome","volume":"15","author":"Moldofsky","year":"1989","journal-title":"Rheum. Dis. Clin. N. Am."},{"key":"10.1016\/j.psychres.2018.02.057_bib28","first-page":"797","article-title":"Sleep, sleep apnea, and fibromyalgia syndrome","volume":"13","author":"Molony","year":"1986","journal-title":"J. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib29","doi-asserted-by":"crossref","first-page":"509","DOI":"10.5665\/sleep.2534","article-title":"Relationship between sleep and pain in adolescents with juvenile primary fibromyalgia syndrome","volume":"36","author":"Olsen","year":"2013","journal-title":"Sleep"},{"key":"10.1016\/j.psychres.2018.02.057_bib30","first-page":"666","article-title":"Improvement in pain, fatigue, and subjective sleep quality through sleep hygiene tips in patients with fibromyalgia","volume":"52","author":"Orlandi","year":"2012","journal-title":"Rev. Bras. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib31","doi-asserted-by":"crossref","first-page":"265","DOI":"10.3109\/00207459708988479","article-title":"Alpha sleep and information processing, perception of sleep and information processing, perception of sleep, pain and arousability in fibromyalgia","volume":"89","author":"Perlis","year":"1997","journal-title":"Int. J. Neurosci."},{"key":"10.1016\/j.psychres.2018.02.057_bib32","first-page":"579","article-title":"Juvenile fibromyalgia: clinical and polysomnographic aspects","volume":"24","author":"Roizenblatt","year":"1997","journal-title":"J. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib33","doi-asserted-by":"crossref","first-page":"222","DOI":"10.1002\/1529-0131(200101)44:1<222::AID-ANR29>3.0.CO;2-K","article-title":"Alpha sleep characteristics in fibromyalgia","volume":"44","author":"Roizenblatt","year":"2001","journal-title":"Arthritis Rheum."},{"key":"10.1016\/j.psychres.2018.02.057_bib34","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1007\/s11916-011-0213-3","article-title":"Sleep disorders and Fibromyalgia","volume":"15","author":"Roizenblatt","year":"2011","journal-title":"Curr. Pain Headache Rep."},{"key":"10.1016\/j.psychres.2018.02.057_bib35","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1097\/WNP.0000000000000134","article-title":"Polysomnography with quantitative EEG in patients with and without fibromyalgia","volume":"32","author":"Rosenfeld","year":"2015","journal-title":"J. Clin. Neurophysiol."},{"key":"10.1016\/j.psychres.2018.02.057_bib36","doi-asserted-by":"crossref","first-page":"597","DOI":"10.1002\/acr.21595","article-title":"Effect of pregabalin on sleep in patients with fibromyalgia and sleep maintenance disturbance: a randomized, placebo-controlled, 2-way crossover polysomnography study","volume":"64","author":"Roth","year":"2012","journal-title":"Arthritis Care Res (Hoboken)"},{"key":"10.1016\/j.psychres.2018.02.057_bib37","doi-asserted-by":"crossref","first-page":"302","DOI":"10.1097\/AJP.0000000000000261","article-title":"Chracteristics of disturbed sleep in patients with fibromyalgia compared with insomnia or with pain-free volunteers","volume":"32","author":"Roth","year":"2016","journal-title":"Clin. J. Pain."},{"key":"10.1016\/j.psychres.2018.02.057_bib38","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1007\/s002960000077","article-title":"The validity and reliability of the Turkish version of the Fibromyalgia Impact Questionnaire","volume":"20","author":"Sarmer","year":"2000","journal-title":"Rheumatol. Int."},{"key":"10.1016\/j.psychres.2018.02.057_bib39","first-page":"69","article-title":"Hypersomnolence in fibromyalgia syndrome","volume":"20","author":"Sarzi-Puttini","year":"2002","journal-title":"Clin. Exp. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib40","doi-asserted-by":"crossref","first-page":"247","DOI":"10.1002\/(SICI)1098-240X(199706)20:3<247::AID-NUR7>3.0.CO;2-I","article-title":"Sleep, psychological distress, and stres arousal in women with fibromyalgia","volume":"20","author":"Shaver","year":"1997","journal-title":"Res. Nurs. Health"},{"key":"10.1016\/j.psychres.2018.02.057_bib41","doi-asserted-by":"crossref","first-page":"548","DOI":"10.1111\/j.1745-7599.2010.00547.x","article-title":"Subjective and objective sleep difficulties in women with fibromyalgia syndrome","volume":"22","author":"Stuifbergen","year":"2010","journal-title":"J. Am. Acad. Nurse Pract."},{"key":"10.1016\/j.psychres.2018.02.057_bib42","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/j.jpsychores.2006.09.013","article-title":"Exploring the role of sleep and coping in quality of life in fibromyalgia","volume":"62","author":"Theadom","year":"2007","journal-title":"J. Psychosom. Res."},{"key":"10.1016\/j.psychres.2018.02.057_bib43","series-title":"Sleep \u201986","first-page":"445","article-title":"Fibrositis syndrome: polysomnographic and psychological aspects","author":"Touchon","year":"1998"},{"key":"10.1016\/j.psychres.2018.02.057_bib44","doi-asserted-by":"crossref","first-page":"247","DOI":"10.1016\/S0889-857X(21)00382-3","article-title":"Treatment of ''resistant'' fibromyalgia","volume":"21","author":"Wilke","year":"1995","journal-title":"Rheum. Dis. Clin. North Am."},{"key":"10.1016\/j.psychres.2018.02.057_bib45","doi-asserted-by":"crossref","first-page":"429","DOI":"10.1097\/00005053-198207000-00011","article-title":"Disturbed sleep in patients complaining of chronic pain","volume":"170","author":"Wittig","year":"1982","journal-title":"J. Nerv. Ment. Dis."},{"key":"10.1016\/j.psychres.2018.02.057_bib46","doi-asserted-by":"crossref","first-page":"671","DOI":"10.3899\/jrheum.081180","article-title":"Fibromyalgia wars","volume":"36","author":"Wolfe","year":"2009","journal-title":"J. Rheumatol."},{"key":"10.1016\/j.psychres.2018.02.057_bib47","doi-asserted-by":"crossref","first-page":"600","DOI":"10.1002\/acr.20140","article-title":"The American College of Rheumatology preliminary diagnostic criteria for fibromyalgia and measurement of symptom severity","volume":"62","author":"Wolfe","year":"2010","journal-title":"Arthritis Care Res."},{"key":"10.1016\/j.psychres.2018.02.057_bib48","doi-asserted-by":"crossref","first-page":"e88740","DOI":"10.1371\/journal.pone.0088740","article-title":"Symptoms, the nature of fibromyalgia, and diagnostic and statistical manual 5 (DSM 5) defined mental ilness in patients with rheumatoid arthritis and fibromyalgia","volume":"9","author":"Wolfe","year":"2014","journal-title":"PLoS One"},{"key":"10.1016\/j.psychres.2018.02.057_bib49","doi-asserted-by":"crossref","first-page":"623","DOI":"10.1016\/j.comppsych.2011.08.002","article-title":"Psychometric properties of the Turkish version of the patient health questionnaire-somatic, anxiety, and depressive symptoms","volume":"53","author":"Yaz\u0131c\u0131 G\u00fcle\u00e7","year":"2012","journal-title":"Compr. Psychiatry"}],"container-title":["Psychiatry Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S016517811731942X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S016517811731942X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,28]],"date-time":"2025-09-28T05:26:08Z","timestamp":1759037168000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S016517811731942X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,5]]},"references-count":49,"alternative-id":["S016517811731942X"],"URL":"https:\/\/doi.org\/10.1016\/j.psychres.2018.02.057","relation":{},"ISSN":["0165-1781"],"issn-type":[{"type":"print","value":"0165-1781"}],"subject":[],"published":{"date-parts":[[2018,5]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Objective measures of sleep in fibromyalgia syndrome: Relationship to clinical, psychiatric, and immunological variables","name":"articletitle","label":"Article Title"},{"value":"Psychiatry Research","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.psychres.2018.02.057","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2018 Elsevier B.V. All rights reserved.","name":"copyright","label":"Copyright"}]}}