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Variability in Sleep Is Associated with Trait-Based and Daily Measures of Bipolar Spectrum Psychopathology
Behavioral Sleep Medicine ( IF 3.1 ) Pub Date : 2021-03-06 , DOI: 10.1080/15402002.2021.1890076
Sarah H Sperry 1, 2 , Thomas R Kwapil 1, 3
Affiliation  

ABSTRACT

Introduction

Although sleep disturbances are well documented in bipolar spectrum disorders (BSDs), significantly less research has examined whether these disturbances are present in those at risk for developing BSDs or with subsyndromal symptoms. The present study examined associations between risk for BSDs, as measured by the Hypomanic Personality Scale (HPS), and sleep assessed using experience sampling. We assessed whether intraindividual variability in sleep was associated with affect, cognition, and behavior in daily life and potential directionality of these relationships.

Methods

233 young adults oversampled for high scores on the HPS completed 14 days of experience sampling assessing total sleep time (TST), bed/rise time, sleep quality, affect (negative and positive affect), cognition (difficulty concentrating, racing thoughts), and behavior (impulsivity) in daily life. We used Dynamic Structural Equation Modeling (DSEM) to assess within-person links between sleep and bipolar spectrum psychopathology.

Results

HPS scores were associated with less TST, later bedtime, and more variable TST and bedtime. Variability in TST was associated with negative affect, difficulty concentrating/racing thoughts, and impulsivity. Within-person decreases in sleep were associated with next day increases in negative affect, stress, difficulty concentrating, and racing thoughts.

Limitations

Measurement of sleep was limited. Future studies should examine both objective measures of sleep (e.g., actigraphy) and fragmentation in sleep.

Conclusions

Risk for BSD was associated with similar patterns of sleep disruptions as seen in BSDs. Important dynamic links between sleep and bipolar spectrum psychopathology emerged indicating that sleep is an important target for improving symptoms of BSDs in daily life.



中文翻译:

睡眠的变异性与双极谱精神病理学的基于特征和日常测量有关

摘要

介绍

尽管睡眠障碍在双相谱系障碍 (BSD) 中得到了很好的记录,但很少有研究检查这些障碍是否存在于那些有发展 BSD 或亚综合征症状的风险中。本研究检查了通过轻躁狂人格量表 (HPS) 测量的 BSD 风险与使用经验抽样评估的睡眠之间的关联。我们评估了睡眠中的个体内变异性是否与日常生活中的情感、认知和行为以及这些关系的潜在方向性有关。

方法

233 名在 HPS 上获得高分的年轻人完成了 14 天的经验抽样,评估了总睡眠时间 (TST)、睡觉/起床时间、睡眠质量、情感(负面和正面情感)、认知(难以集中注意力、思绪奔腾)和日常生活中的行为(冲动)。我们使用动态结构方程模型 (DSEM) 来评估睡眠和双极谱精神病理学之间的人内联系。

结果

HPS 分数与较少的 TST、较晚的就寝时间以及更多可变的 TST 和就寝时间相关。TST 的可变性与负面影响、难以集中/快速思考和冲动有关。人体内睡眠减少与第二天负面影响、压力、注意力难以集中和思绪的增加有关。

限制

睡眠的测量是有限的。未来的研究应该检查睡眠的客观测量(例如,活动记录)和睡眠中的碎片化。

结论

BSD 的风险与 BSD 中类似的睡眠中断模式相关。睡眠与双极谱系精神病理学之间的重要动态联系表明睡眠是改善日常生活中 BSD 症状的重要目标。

更新日期:2021-03-06
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