Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Department of Psychology, Goldsmiths, University of London, London, UK.
J Sleep Res. 2018 Oct;27(5):e12650. doi: 10.1111/jsr.12650. Epub 2017 Dec 27.
Research suggests that poor sleep quality is related to the occurrence of sleep paralysis, although the precise relationship between these two variables is unknown. This association has generated interest due to the related possibility that improving sleep quality could help to combat episodes of sleep paralysis. To date, studies examining the association between sleep quality and sleep paralysis have typically measured sleep quality using general measures such as the global score of the Pittsburgh Sleep Quality Index (PSQI). The aim of this study was to increase the precision of our understanding of the relationship between sleep paralysis and other aspects of sleep by investigating associations between different sleep-related variables and sleep paralysis. Using data from the G1219 twin/sibling study, analyses were performed on 860 individuals aged 22-32 years (66% female). Results showed that two components of the PSQI, sleep latency and daytime dysfunction, were predictors of sleep paralysis. In addition, a number of other sleep-related variables were related significantly to sleep paralysis. These were: insomnia symptoms, sleep problems commonly related to traumatic experiences, presleep arousal, cognitions about sleep and excessive daytime sleepiness. There was no relationship with sleep-disordered breathing, diurnal preference or sleeping arrangements. Potential mechanisms underlying these results and suggestions for future research are discussed.
研究表明，睡眠质量差与睡眠瘫痪的发生有关，尽管这两个变量之间的确切关系尚不清楚。这种关联引起了人们的兴趣，因为提高睡眠质量可能有助于对抗睡眠瘫痪发作。迄今为止，研究睡眠质量与睡眠瘫痪之间关系的研究通常使用一般措施（如匹兹堡睡眠质量指数（PSQI）的全球评分）来衡量睡眠质量。本研究的目的是通过研究睡眠相关变量与睡眠瘫痪之间的关联，提高我们对睡眠瘫痪与睡眠其他方面关系的理解精度。使用来自 G1219 双胞胎/兄弟姐妹研究的数据，对 860 名年龄在 22-32 岁的个体（女性占 66%）进行了分析。结果表明，PSQI 的两个组成部分，即睡眠潜伏期和日间功能障碍，是睡眠瘫痪的预测因素。此外，一些其他与睡眠相关的变量与睡眠瘫痪显著相关。这些变量是：失眠症状、与创伤经历相关的常见睡眠问题、睡前觉醒、对睡眠的认知和白天过度嗜睡。与睡眠呼吸障碍、昼夜节律偏好或睡眠安排无关。讨论了这些结果的潜在机制和未来研究的建议。
