ArticlePsychological medicine2023
Elusive hypersomnolence in seasonal affective disorder: actigraphic and self-reported sleep in and out of depressive episodes.
Article in Psychological medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 9 citations in OpenAlex.
- Association of accelerometer-derived sleep characteristics with incident osteoporosis: a prospective cohort study from the UK Biobank.Frontiers in endocrinology · 2026Article
- Insomnia in seasonal affective disorder: considering the use of benzodiazepines with a focus on lormetazepam.Frontiers in psychiatry · 2025Review
- Article
- Sleep and circadian rhythm profiles in seasonal depression.Journal of psychiatric research · 2022Article
- Sleep biomarkers of seasonal vulnerability in major depressive episodes: a clinical study using actigraphy and polysomnography.International journal of clinical and health psychology : IJCHPArticle
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Authors and funding
9 authors at 2 institutions in 1 country.
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Abstract
backgroundHypersomnolence has been considered a prominent feature of seasonal affective disorder (SAD) despite mixed research findings. In the largest multi-season study conducted to date, we aimed to clarify the nature and extent of hypersomnolence in SAD using multiple measurements during winter depressive episodes and summer remission.
methodsSleep measurements assessed in individuals with SAD and nonseasonal, never-depressed controls included actigraphy, daily sleep diaries, retrospective self-report questionnaires, and self-reported hypersomnia assessed via clinical interviews. To characterize hypersomnolence in SAD we (1) compared sleep between diagnostic groups and seasons, (2) examined correlates of self-reported hypersomnia in SAD, and (3) assessed agreement between commonly used measurement modalities.
resultsIn winter compared to summer, individuals with SAD (
conclusionDespite a winter increase in total sleep time and year-round elevated daytime sleepiness, the average total sleep time (7 h) suggest hypersomnolence is a poor characterization of SAD. Importantly, self-reported hypersomnia captures multiple sleep disruptions, not solely lengthened sleep duration. We recommend using a multimodal assessment of hypersomnolence in mood disorders prior to sleep intervention.
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