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Front Behav Neurosci. 2017 Apr 13;11:59. doi: 10.3389/fnbeh.2017.00059. eCollection 2017.

Cycle-Triggered Cortical Stimulation during Slow Wave Sleep Facilitates Learning a BMI Task: A Case Report in a Non-Human Primate.

Author information

1
Department of Physiology and Biophysics and Washington National Primate Research Center, University of WashingtonSeattle, WA, USA.
2
Center for Sensorimotor Neural Engineering (NSF ERC), University of WashingtonSeattle, WA, USA.

Abstract

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.

KEYWORDS:

BMI; memory consolidation; oscillations; sleep; synaptic plasticity

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