Abstract：
Sleep has a major impact on a variety of human biological and cognitive functions. In particular, its impact on memory has attracted extensive research and has been amply demonstrated. However, it is still unclear whether sleep, or lack thereof, affects the ability to recognize faces. To clarify this, we conducted a scoping review on studies that included a face recognition memory task and any kind of sleep manipulation in adults without any sleep pathology. A systematic search and synthesis of peer-reviewed journal articles identified through the electronic databases Scopus, Web of Science, EBSCO, and PubMed was performed. A final sample of 18 articles, corresponding to 19 studies, met the eligibility criteria. The results of 13 articles suggested that sleep benefited face recognition ability, whereas two articles indicated a detrimental effect of sleep on performance, and four articles found no significant effects. This review highlights the high methodological variability between studies, in terms of sleep manipulation, retention interval, tasks used to probe face recognition, and other variables. In sum, although around one third of the studies show a beneficial effect of sleep on memory for faces, we suggest that future research should invest in replicating these findings with a stricter control of potentially confounding variables to allow stronger conclusions to be drawn.
摘要：
睡眠对人类多种生物和认知功效有主要影响。特别是,它对记忆的影响吸引了广泛的研究，并得到了充分的证明。然而,目前还不清楚是否睡眠，或缺乏，影响识别人脸的能力。为了澄清这一点，我们对一项研究进行了范围审查,这些研究包括一项面部识别记忆任务和在没有任何睡眠病理学的成年人中进行的任何类型的睡眠操作.通过电子数据库Scopus识别的同行评审期刊文章的系统搜索和综合，WebofScience,EBSCO,并执行了PubMed。18篇文章的最终样本，对应于19项研究，符合资格标准。13篇文章的结果表明，睡眠有利于人脸识别能力，而两篇文章指出睡眠对表现有不利影响，四篇文章没有发现显著的影响。这篇综述强调了研究之间的高度方法学差异，在睡眠操纵方面，保留间隔,用于探测面部识别的任务，和其他变量。总之,尽管大约三分之一的研究表明睡眠对面部记忆有有益的影响，我们建议未来的研究应该投资于复制这些发现,同时更严格地控制潜在的混杂变量,以便得出更有力的结论.
