睡眠不足の憧れ: 睡眠の質と,外傷的な喪失後の日常生活における長期的な悲しみの間の双方向的関連
L M M Kivelä1, J Pociūnaitė-Ott1, L I M Lenferink1
1Department of Psychology, Health and Technology, Faculty of Behavioural Management and Social Sciences, University of Twente, Enschede, the Netherlands.
Clinical psychology & psychotherapy
|February 13, 2026
まとめ
睡眠の質が悪くなると,昼間,長期的な悲しみの障害 (PGD) の症状が悪化する可能性があります. しかし,悲しみの症状は,この研究で翌日の夜の睡眠の質を予測しませんでした.
科学分野:
- 心理学 心理学とは
- スリープ・サイエンス スリープ・サイエンス
- 悲しみの研究 悲しみの研究
背景:
- 睡眠障害は,特に長期的悲しみの障害 (PGD) を患っている人にとって,喪中において一般的です.
- 既存の研究では,PGDと睡眠不足との関連が示されていますが,時間的な関係はよく理解されていません.
研究 の 目的:
- 睡眠の質と長期的な悲しみの症状の間の日常的な関連性を,心的外傷を伴う遺族を亡くした成人の間で調査する.
- 睡眠と悲しみの間の効果の方向性とタイミングを検証する.
主な方法:
- スマートフォンアプリで14日間のエコロジカル・モメンタリー・アセスメント (EMA) プロトコルを利用しました.
- 長期的な悲しみ (PG) の症状を1日5回,睡眠の質を毎朝評価した.
- 線形混合モデルを用いて,人内,遅れた効果を分析した.
主要な成果:
- 長く続く悲しみの症状は,その後の睡眠の質を予測できませんでした.
- 睡眠の質の低下は,昼間のPG重度の増加と関連していましたが,この発見は,感度分析では堅固ではありませんでした.
- 睡眠の質とPGレベルとの関連は,午前中に最も強く,一日中弱まった.
結論:
- 研究結果は,睡眠から悲しみへの経路を暫定的に支持しており,睡眠不足がPG症状を一時的に悪化させる可能性があることを示唆しています.
- 効果のサイズが小さいこととデータの変動性により,より大きなサンプルでのレプリケーションが必要になります.
- 睡眠と悲しみのダイナミクスを結びつける因果メカニズムを探るため,さらなる研究が必要である.
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