Department of Psychology, University of British Columbia.
Psychol Sci. 2020 Apr;31(4):449-459. doi: 10.1177/0956797620905615. Epub 2020 Mar 12.
Almost nothing is known about whether exposure to the scent of loved ones influences sleep. In the current study, 155 participants spent 2 nights with their partner's scent and 2 nights with a control scent (in random order). Sleep was measured in two ways: sleep efficiency (via actigraphy) and perceived sleep quality (via self-report). Sleep efficiency was higher when participants were exposed to their partner's scent. This increase occurred regardless of participants' beliefs about the origin of the scent. Perceived sleep quality was higher when participants believed that they were smelling their partner's scent. Exposure to a partner's scent led sleep efficiency to increase by more than 2% on average, an improvement similar in magnitude to the effect of melatonin on sleep. The current work speaks to the critical role of olfaction in communication and reveals that social scents can impact sleep.
关于接触心爱之人的气味是否会影响睡眠,目前几乎一无所知。在当前的研究中,155 名参与者连续两晚分别与伴侣的气味和对照气味(随机顺序)相伴而眠。睡眠通过两种方式进行测量:睡眠效率(通过活动记录仪)和感知睡眠质量(通过自我报告)。当参与者接触到伴侣的气味时,他们的睡眠效率更高。这种增加的情况与参与者对气味来源的看法无关。当参与者认为自己闻到了伴侣的气味时,他们会感觉到睡眠质量更高。暴露于伴侣的气味平均使睡眠效率提高了 2%以上,这种改善与褪黑素对睡眠的影响相当。目前的工作表明嗅觉在交流中起着关键作用,并揭示了社交气味可以影响睡眠。