Cited by 75Transcranial Magnetic Stimulation StudiesNeuroscience and Neuropharmacology ResearchMemory and Neural Mechanisms

Anodal tDCS over the primary motor cortex facilitates long-term memory formation reflecting use-dependent plasticity

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Rroji, Orjon, van Kuyck, Kris, Nuttin, Bart, Wenderoth, Nicole·2015·PLOS ONE

Abstract

Previous research suggests that anodal transcranial direct current stimulation (tDCS) over the primary motor cortex (M1) modulates NMDA receptor dependent processes that mediate synaptic plasticity. Here we test this proposal by applying anodal versus sham tDCS while subjects practiced to flex the thumb as fast as possible (ballistic movements). Repetitive practice of this task has been shown to result in performance improvements that reflect use-dependent plasticity resulting from NMDA receptor mediated, long-term potentiation (LTP)-like processes. Using a double-blind within-subject cross-over design, subjects (n=14) participated either in an anodal or a sham tDCS session which were at least 3 months apart. Sham or anodal tDCS (1 mA) was applied for 20 min during motor practice and retention was tested 30 min, 24 hours and one week later. All subjects improved performance during each of the two sessions (p < 0.001) and learning gains were similar. Our main result is that long term retention performance (i.e. 1 week after practice) was significantly better when practice was performed with anodal tDCS than with sham tDCS (p < 0.001). This effect was large (Cohen's d=1.01) and all but one subject followed the group trend. Our data strongly suggest that anodal tDCS facilitates long-term memory formation reflecting use-dependent plasticity. Our results support the notion that anodal tDCS facilitates synaptic plasticity mediated by an LTP-like mechanism, which is in accordance with previous research.

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Authors
Rroji, O., van Kuyck, K., Nuttin, B., & Wenderoth, N.
Affiliations
  • KU Leuven (BE)
  • ETH Zurich (CH)
Corresponding author
Wenderoth, Nicole
Venue
PLOS ONE
Published
2015-05-21
Volume
10
Issue
5
Pages
e0127270
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2141951582
Cited by
75
References
58
Citations by year
2026: 2 · 2025: 8 · 2024: 3 · 2023: 9 · 2022: 3 · 2021: 6 · 2020: 7 · 2019: 11 · 2018: 9 · 2017: 11 · 2016: 6
FWCI
4.63
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Lirias (KU Leuven) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Repository for Publications and Research Data (ETH Zurich) (submittedVersion, cc-by)
  • ETH Zürich Research Collection (cc-by)
Funders
  • KU Leuven
  • Vlaamse regering
Topics
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
anodal tDCS, primary motor cortex, use-dependent plasticity, long-term memory formation, motor learning, ballistic movements, NMDA receptor, long-term potentiation, synaptic plasticity
MeSH terms
Adolescent, Adult, Electrodes, Female, Humans, Male, Motor Cortex, Neuronal Plasticity, Cross-Over Studies, Young Adult, Memory, Long-Term, Transcranial Direct Current Stimulation

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