Efficacy of slow oscillatory-transcranial direct current stimulation on EEG and memory - contribution of an inter-individual factor

The European Journal of Neuroscience
Ping Chai KooLisa Marshall

Abstract

Despite many reports on beneficial effects of anodal slow oscillatory-transcranial direct current stimulation (so-tDCS) during non-rapid eye movement (NREM) sleep on memory consolidation, frequent negative outcomes have also been observed. Our working hypothesis is that so-tDCS efficacy is strongly dependent upon the susceptibility of the underlying network. One component determining susceptibility of the network is hypothesized to be reflected in learning or 'task-induced' plastic changes. Another component is hypothesized to represent inter-individual confounds. Twenty-five (15 female) healthy students participated in two learning conditions with and without so-tDCS during early nocturnal NREM sleep and in one control condition without learning tasks. So-tDCS was applied in five 5-min blocks. EEG was assessed during two time windows: an acute period with five 1-min epochs after each stimulation block and a 150-min post-stimulation time period. Inter-individual differences were assessed by a memory quotient (MQ) and subjects classified into high- vs. low-scoring groups. Although so-tDCS was efficient in enhancing fast spindle parameters in the 150-min time period in all subjects, so-tDCS failed to modulate memory consolidation...Continue Reading

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Citations

May 18, 2018·The European Journal of Neuroscience·Dana L Helmreich, UNKNOWN EJN Diversity and Inclusion Initiative
Oct 1, 2020·The European Journal of Neuroscience
Dec 5, 2019·Physiology·Lisa MarshallThien Thanh Dang-Vu
Feb 2, 2020·Sleep Medicine Clinics·Roneil G Malkani, Phyllis C Zee
Nov 13, 2020·Neurotherapeutics : the Journal of the American Society for Experimental NeuroTherapeutics·Zanna J VoyseyAlpar S Lazar
May 2, 2020·Schizophrenia Research·Flavio Fröhlich, Caroline Lustenberger
Jun 25, 2021·Frontiers in Psychiatry·Clément DondéPierre A Geoffroy

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