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Updated: Jul 16, 2026
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Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
Published on: October 2, 2019
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Transcranial electrical stimulation during wakeful rest can support early memory consolidation in arithmetic learning
Jochen A Mosbacher1, Julia Moser1, Stefan Halverscheid2
1University of Graz, Department of Psychology, Universitätsplatz 2, 8010 Graz, Austria.
Brain and Cognition
|February 27, 2026
Summary
Applying slow-oscillating transcranial direct current stimulation (so-tDCS) during quiet rest after learning improved memory performance. This suggests so-tDCS may enhance early memory consolidation and overall accuracy.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Memory Research
Background:
- Memory consolidation is facilitated by quiet wakeful rest post-learning.
- This process is linked to neocortical-hippocampal interactions and slow cortical oscillations.
- Slow-oscillating transcranial direct current stimulation (so-tDCS) during sleep enhances memory retrieval.
Purpose of the Study:
- To investigate if so-tDCS applied during quiet wakeful rest aids early memory consolidation.
- To determine the effect of so-tDCS on memory performance after learning.
Main Methods:
- Fifty-eight adults participated in a novel arithmetic training.
- Participants underwent 15 minutes of quiet wakeful rest with either anodal so-tDCS or sham stimulation.
- Arithmetic performance was assessed post-intervention.
Main Results:
- A medium-sized stimulation effect was observed for overall accuracy.
- The so-tDCS group demonstrated improved performance compared to the sham group.
Conclusions:
- This study provides initial evidence that so-tDCS during quiet wakeful rest can support early memory consolidation.
- So-tDCS may be a viable method to enhance memory performance.
- Further research is needed to confirm findings and elucidate underlying mechanisms.
