Laboratoire de Cartographie fonctionnelle du Cerveau (LCFC), UNI - ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.
Neuropsychology and Functional Imaging Research Group (UR2NF), Center for Research in Cognition and Neurosciences (CRCN), UNI - ULB Neuroscience Institute, Université libre de Bruxelles (ULB), Brussels, Belgium.
Sci Rep. 2020 Jun 19;10(1):9979. doi: 10.1038/s41598-020-66880-3.
Post-learning slow wave sleep (SWS) is known to support declarative memory consolidation. As SWS is more abundant in young population, we suggested that sleep-dependent memory consolidation processes could occur at a faster pace in school-aged children. After learning new associations between non-objects and their functions, retrieval performance was tested in 30 children (7-12 years) and 34 adults (20-30 years) during an immediate (IR) and a delayed retrieval (DR) session separated by either a Sleep or a Wake condition. Sleep led to stabilized memory retrieval performance only in children, not in adults, whereas no age-related difference was observed after a similar period of wakefulness. Hence, our results suggest more efficient sleep-dependent declarative memory consolidation processes in children compared with adults, an effect potentially ascribed to more abundant and deeper SWS during childhood.
学习后慢波睡眠（SWS）已知可支持陈述性记忆巩固。由于 SWS 在年轻人群中更为丰富，我们推测睡眠依赖性记忆巩固过程在学龄儿童中可能发生得更快。在学习了非物体与其功能之间的新关联之后，在即时（IR）和延迟检索（DR）会话中对 30 名儿童（7-12 岁）和 34 名成年人（20-30 岁）进行了检索性能测试，这两个会话通过睡眠或清醒条件分开。只有儿童在睡眠后记忆检索性能稳定，而成年人则没有，而在清醒相似时间后则没有观察到与年龄相关的差异。因此，我们的结果表明，与成年人相比，儿童的睡眠依赖性陈述性记忆巩固过程更为有效，这种效果可能归因于儿童时期更丰富和更深层次的 SWS。
