Rembado Irene, Zanos Stavros, Fetz Eberhard E
Department of Physiology and Biophysics and Washington National Primate Research Center, University of WashingtonSeattle, WA, USA.
Center for Sensorimotor Neural Engineering (NSF ERC), University of WashingtonSeattle, WA, USA.
Front Behav Neurosci. 2017 Apr 13;11:59. doi: 10.3389/fnbeh.2017.00059. eCollection 2017.
Slow wave sleep (SWS) has been identified as the sleep stage involved in consolidating newly acquired information. A growing body of evidence has shown that delta (1-4 Hz) oscillatory activity, the characteristic electroencephalographic signature of SWS, is involved in coordinating interaction between the hippocampus and the neocortex and is thought to take a role in stabilizing memory traces related to a novel task. This case report describes a new protocol that uses neuroprosthetics training of a non-human primate to evaluate the effects of surface cortical electrical stimulation triggered from SWS cycles. The results suggest that stimulation phase-locked to SWS oscillatory activity promoted learning of the neuroprosthetic task. This protocol could be used to elucidate mechanisms of synaptic plasticity underlying off-line learning during sleep and offers new insights into the role of brain oscillations in information processing and memory consolidation.
慢波睡眠(SWS)已被确定为参与巩固新获取信息的睡眠阶段。越来越多的证据表明,δ波(1-4赫兹)振荡活动,即SWS的特征性脑电图信号,参与协调海马体与新皮层之间的相互作用,并被认为在稳定与新任务相关的记忆痕迹方面发挥作用。本病例报告描述了一种新的方案,该方案使用对非人类灵长类动物进行神经假体训练,以评估由SWS周期触发的表面皮质电刺激的效果。结果表明,与SWS振荡活动锁相的刺激促进了神经假体任务的学习。该方案可用于阐明睡眠期间离线学习背后的突触可塑性机制,并为脑振荡在信息处理和记忆巩固中的作用提供新的见解。