Cindy L Ehlers, Katherine J Karriker-Jaffe, Rebecca Bernert
{"title":"Poor self-reported sleep quality associated with suicide risk in a community sample of American Indian adults.","authors":"Cindy L Ehlers, Katherine J Karriker-Jaffe, Rebecca Bernert","doi":"10.1093/sleepadvances/zpad024","DOIUrl":"10.1093/sleepadvances/zpad024","url":null,"abstract":"<p><strong>Study objectives: </strong>Although American Indian/Alaska Native (AI/AN) have high suicide rates few studies have systematically investigated sleep quality and its association with suicidal behaviors in AI/AN. This study is a cross-sectional investigation of self-reported sleep quality and suicidal behaviors in an adult AI population.</p><p><strong>Methods: </strong>A semi-structured interview was used to collect data on suicidal ideation, suicidal plans, and suicidal attempts and the Pittsburgh Sleep Quality Index (PSQI) was collected to assess sleep quality in American Indian adults.</p><p><strong>Results: </strong>In this sample (<i>n</i> = 477), 91 (19%) of the participants endorsed suicidal ideation (thoughts and plans), and 66 (14%) reported suicidal attempts, including four who subsequently died by suicide. More women reported suicidal thoughts or acts than men. Those endorsing suicidal thoughts slept fewer hours during the night, reported more nocturnal awakenings, and showed poorer subjective sleep quality according to PSQI total scores compared to those with no suicidal thoughts or acts. Participants with suicidal acts (<i>n</i> = 66) reported more bad dreams and higher PSQI total scores compared to those with no suicidal thoughts or acts. When those with any suicidal thoughts or acts (<i>n</i> = 157, 33%) were compared to those without, they were more likely to endorse nocturnal awakenings and bad dreams and demonstrated significantly higher PSQI total scores.</p><p><strong>Conclusions: </strong>Although additional research is needed to evaluate sleep disturbances as a proximal, causal risk factor for suicidal behaviors in AI, findings highlight need for further study of sleep as a warning sign and intervention tool for suicide prevention among American Indian adults.</p>","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad024"},"PeriodicalIF":0.0,"publicationDate":"2023-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6f/39/zpad024.PMC10246582.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9663806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jennifer M Primack, McKenzie J Quinn, Mary A Carskadon, Caroline S Holman, Sarra Nazem, Madeline R Kelsey, Erick J Fedorenko, Sarah McGeary, Leslie A Brick, John E McGeary
{"title":"Longitudinal assessment of the sleep suicide link in Veterans: methods and study protocol.","authors":"Jennifer M Primack, McKenzie J Quinn, Mary A Carskadon, Caroline S Holman, Sarra Nazem, Madeline R Kelsey, Erick J Fedorenko, Sarah McGeary, Leslie A Brick, John E McGeary","doi":"10.1093/sleepadvances/zpad025","DOIUrl":"10.1093/sleepadvances/zpad025","url":null,"abstract":"<p><p>Although sleep disruption has emerged as a theoretically consistent and empirically supported suicide risk factor, the mechanistic pathways underlying the sleep-suicide link are less understood. This paper describes the methodology of a study intended to examine longitudinal mechanisms driving the link between sleep and suicide in Veterans at elevated suicide risk. Participants will be 140 Veterans hospitalized for suicide attempt or ideation with plan and intent or those identified through the Suicide Prevention Coordinator (SPC) office as being at acute risk. After study enrollment, actigraphy and ecological momentary assessment (EMA) data will be collected for 8 weeks, with follow-up assessments occurring at 2, 4, 6, 8, and 26 weeks. Participants respond to EMA questionnaires, derived from psychometrically validated assessments targeting emotional reactivity, emotion regulation, impulsivity, suicide risk, and sleep timing constructs, five times a day. First and last daily EMA target sleep parameters including sleep quantity, quality, timing, nightmares, and nocturnal awakenings. During follow-up assessments, participants will complete self-report assessments and interviews consistent with EMA constructs and the Iowa Gambling Task. The primary outcome for aim 1 is suicide ideation severity and for the primary outcome for aim 2 is suicide behavior. Findings from this study will improve our understanding of the dynamic interactions among sleep disturbance, emotion reactivity/regulation, and impulsivity to inform conceptual Veteran sleep-suicide mechanistic models. Improved models will be critical to optimizing the precision of suicide prevention efforts that aim to intervene and mitigate risk in Veteran populations, especially during a period of acute risk.</p>","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad025"},"PeriodicalIF":0.0,"publicationDate":"2023-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10254730/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9975328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to: The duration of caffeine treatment plays an essential role in its effect on sleep and circadian rhythm.","authors":"","doi":"10.1093/sleepadvances/zpad023","DOIUrl":"10.1093/sleepadvances/zpad023","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1093/sleepadvances/zpad014.].</p>","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad023"},"PeriodicalIF":0.0,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10166160/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9469693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to: Ultra-short objective alertness assessment: an adaptive duration version of the 3 minute PVT (PVT-BA) accurately tracks changes in psychomotor vigilance induced by sleep restriction.","authors":"","doi":"10.1093/sleepadvances/zpad022","DOIUrl":"10.1093/sleepadvances/zpad022","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1093/sleepadvances/zpac038.].</p>","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad022"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/5b/97/zpad022.PMC10109075.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9476444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hosein Aghayan Golkashani, Shohreh Ghorbani, Ruth L F Leong, Ju Lynn Ong, Michael W L Chee
{"title":"Advantage conferred by overnight sleep on schema-related memory may last only a day.","authors":"Hosein Aghayan Golkashani, Shohreh Ghorbani, Ruth L F Leong, Ju Lynn Ong, Michael W L Chee","doi":"10.1093/sleepadvances/zpad019","DOIUrl":"10.1093/sleepadvances/zpad019","url":null,"abstract":"<p><strong>Study objectives: </strong>Sleep contributes to declarative memory consolidation. Independently, schemas benefit memory. Here we investigated how sleep compared with active wake benefits schema consolidation 12 and 24 hours after initial learning.</p><p><strong>Methods: </strong>Fifty-three adolescents (age: 15-19 years) randomly assigned into sleep and active wake groups participated in a schema-learning protocol based on transitive inference (i.e. If B > C and C > D then B > D). Participants were tested immediately after learning and following 12-, and 24-hour intervals of wake or sleep for both the adjacent (e.g. B-C, C-D; relational memory) and inference pairs: (e.g.: B-D, B-E, and C-E). Memory performance following the respective 12- and 24-hour intervals were analyzed using a mixed ANOVA with schema (schema, no-schema) as the within-participant factor, and condition (sleep, wake) as the between-participant factor.</p><p><strong>Results: </strong>Twelve hours after learning, there were significant main effects of condition (sleep, wake) and schema, as well as a significant interaction, whereby schema-related memory was significantly better in the sleep condition compared to wake. Higher sleep spindle density was most consistently associated with greater overnight schema-related memory benefit. After 24 hours, the memory advantage of initial sleep was diminished.</p><p><strong>Conclusions: </strong>Overnight sleep preferentially benefits schema-related memory consolidation following initial learning compared with active wake, but this advantage may be eroded after a subsequent night of sleep. This is possibly due to delayed consolidation that might occur during subsequent sleep opportunities in the wake group.</p><p><strong>Clinical trial information: </strong>Name: Investigating Preferred Nap Schedules for Adolescents (NFS5) URL: https://clinicaltrials.gov/ct2/show/NCT04044885. Registration: NCT04044885.</p>","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad019"},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/64/05/zpad019.PMC10155747.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9479113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hans P A Van Dongen, Mathias Basner, Janet M Mullington, Michele Carlin
{"title":"Foreword: Festschrift in honor of David Dinges, scientist and mentor extraordinaire.","authors":"Hans P A Van Dongen, Mathias Basner, Janet M Mullington, Michele Carlin","doi":"10.1093/sleepadvances/zpad020","DOIUrl":"10.1093/sleepadvances/zpad020","url":null,"abstract":"","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"1 1","pages":"zpad020"},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10658658/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43141898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"From ontogenesis to clinical practice: waking up to infant sleep.","authors":"Thomas F Anders","doi":"10.1093/sleepadvances/zpad017","DOIUrl":"10.1093/sleepadvances/zpad017","url":null,"abstract":"<p><p>This article describes the author's research journey exploring infant and toddler sleep. From polygraphic recording in hospital nurseries to using videosomnography in homes, the author traced the longitudinal development of infant/toddler nighttime sleep and waking behaviors. The home-based video observations led to a redefinition of a pediatric milestone; namely, \"sleeping through the night,\" and provided a framework for assessing and treating infant/toddler nighttime sleep problems.</p>","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad017"},"PeriodicalIF":0.0,"publicationDate":"2023-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10104392/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9479112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rammy Dang, Xiaoming Feng, Monika Haack, Janet M Mullington
{"title":"Timing of restricted sleep: mood and neurobehavioral outcomes in healthy sleepers.","authors":"Rammy Dang, Xiaoming Feng, Monika Haack, Janet M Mullington","doi":"10.1093/sleepadvances/zpad018","DOIUrl":"10.1093/sleepadvances/zpad018","url":null,"abstract":"Abstract Study Objective To evaluate how nocturnal timing of sleep restriction affects vigilant attention and mood in healthy controls with normal sleep–wake patterns. Methods A convenience sample from two controlled sleep restriction protocols were used to investigate the difference between 4 hours of sleep early in the night, versus 4 hours late in the night. Volunteers stayed in a hospital setting and were randomized to one of the three conditions: a control (8 hours of sleep each night), an early short sleep (ESS, 2300–0300 hours), and a late short sleep (LSS, 0300–0700 hours). Participants were evaluated with psychomotor vigilance task (PVT) and mood ratings via visual analog scales. Results Short sleep conditions led to greater performance decrements than control on PVT. LSS performance impairments were greater than control (lapses, p = 0.011; median RT, p = 0.029; fastest 10%, p = 0.038; reciprocal RT, p = 0.014; and reciprocal 10%, p = 0.005), but had higher positive mood ratings (p = 0.005). LSS also had higher positive mood ratings compared with ESS (p < 0.001). Conclusions The data underscore the negative mood impact of waking at an adverse circadian phase, for healthy controls. In addition, the paradoxical relationship between mood and performance seen in LSS raises concerns that staying up late and waking at the usual rise time may be rewarding in terms of mood, but nonetheless have performance consequences that may not be fully recognized.","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad018"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10109842/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9479109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David A Kalmbach, Philip Cheng, Thomas Roth, Cynthia Fellman-Couture, Chaewon Sagong, Christopher L Drake
{"title":"A two-night polysomnography preliminary study in pregnant women with insomnia: suicidal ideation and nocturnal cognitive arousal prospectively predict objective nocturnal wakefulness.","authors":"David A Kalmbach, Philip Cheng, Thomas Roth, Cynthia Fellman-Couture, Chaewon Sagong, Christopher L Drake","doi":"10.1093/sleepadvances/zpad016","DOIUrl":"10.1093/sleepadvances/zpad016","url":null,"abstract":"<p><strong>Study objectives: </strong>Sleep disruption is common in pregnancy, manifesting as insomnia in half of pregnant women as well as increasing objective nocturnal wakefulness across gestation. Despite potential overlap between insomnia and objective sleep disturbances in pregnancy, objective nocturnal wakefulness and its potential contributing factors remain uncharacterized in prenatal insomnia. The present study described objective sleep disturbances in pregnant women with insomnia and identified insomnia-related predictors of objective nocturnal wakefulness.</p><p><strong>Methods: </strong>Eighteen pregnant women with clinically significant insomnia symptoms (<i>n</i> = 12/18 with DSM-5 insomnia disorder) underwent two overnight polysomnography (PSG) studies. Insomnia symptoms (Insomnia Severity Index), depression and suicidal ideation (Edinburgh Postnatal Depression Scale), and nocturnal cognitive arousal (Pre-Sleep Arousal Scale, Cognitive factor) were assessed before bedtime on each PSG night. Unique to Night 2, participants were awakened after 2 minutes of N2 sleep and reported their in-lab nocturnal (i.e. pre-sleep) cognitive arousal.</p><p><strong>Results: </strong>Difficulty maintaining sleep was the most common objective sleep disturbance affecting 65%-67% of women across both nights, which contributed to short and inefficient sleep. Nocturnal cognitive arousal and suicidal ideation were the most robust predictors of objective nocturnal wakefulness. Preliminary evidence suggested nocturnal cognitive arousal mediates the effects of suicidal ideation and insomnia symptoms on objective nocturnal wakefulness.</p><p><strong>Conclusions: </strong>Nocturnal cognitive arousal may facilitate upstream effects of suicidal ideation and insomnia symptoms on objective nocturnal wakefulness. Insomnia therapeutics reducing nocturnal cognitive arousal may benefit objective sleep in pregnant women presenting with these symptoms.</p>","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad016"},"PeriodicalIF":0.0,"publicationDate":"2023-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10108653/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9485487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matthew Lindfield, Timothy P Howarth, Ara J Perez, Jessie Crespo, Charmain B Atos, Hsin-Chia C Huang, Subash S Heraganahally
{"title":"Obstructive sleep apnea in aboriginal Australians: polysomnographic outcomes and symptom perception post-continuous positive airway pressure implementation.","authors":"Matthew Lindfield, Timothy P Howarth, Ara J Perez, Jessie Crespo, Charmain B Atos, Hsin-Chia C Huang, Subash S Heraganahally","doi":"10.1093/sleepadvances/zpad015","DOIUrl":"10.1093/sleepadvances/zpad015","url":null,"abstract":"<p><strong>Study objectives: </strong>Obstructive sleep apnea (OSA) is reported to be highly prevalent among Aboriginal Australians. However, no studies have assessed the implementation and efficacy of continuous positive airway pressure (CPAP) therapy in this population. Hence, we compared the clinical, self-reported perception of sleep quality and polysomnographic (PSG) characteristics among Aboriginal patients with OSA.</p><p><strong>Methods: </strong>Adult Aboriginal Australians who underwent both diagnostic (Type 1 and 2) and in-lab CPAP implementation studies were included.</p><p><strong>Results: </strong>Total of 149 patients were identified (46% female, median age 49 years, body mass index 35 kg/m<sup>2</sup>). The OSA severity was 6% mild, 26% moderate, and 68% severe on the diagnostic PSG. On application of CPAP, there were significant improvements in; total arousal index (diagnostic 29 to 17/h on CPAP), total apnea-hypopnea index (AHI) (diagnostic 48 to 9/h on CPAP), non-rapid eye movement AHI (diagnostic 47 to 8/h on CPAP), rapid eye movement (REM) AHI (diagnostic 56 to 8/h on CPAP) and oxygen saturation (SpO<sub>2</sub>) nadir (diagnostic 77% to 85% on CPAP) (<i>p</i> < 0.001 for each). Following a single night of CPAP, 54% of patients reported sleeping \"better than normal\" compared to 12% following the diagnostic study (<i>p</i> = 0.003). In multivariate regression models, males had a significantly lesser change in REM AHI than females (5.7 events/hour less change (IQR 0.4, 11.1), <i>p</i> = 0.029).</p><p><strong>Conclusions: </strong>There is substantial improvement in several sleep-related domains on the application of CPAP among Aboriginal patients with a good initial acceptance of treatment. Whether the positive impact observed in this study translates to better sleep health outcomes with long-term adherence to CPAP therapy is yet to be assessed.</p>","PeriodicalId":74808,"journal":{"name":"Sleep advances : a journal of the Sleep Research Society","volume":"4 1","pages":"zpad015"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/32/ec/zpad015.PMC10108651.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9491203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}