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  TDCS effects on pointing task learning in young and old adults

Kaminski, E., Engelhardt, M., Hoff, M., Steele, C., Villringer, A., & Ragert, P. (2021). TDCS effects on pointing task learning in young and old adults. Scientific Reports, 11(1): 3421. doi:10.1038/s41598-021-82275-4.

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 Creators:
Kaminski, Elisabeth1, 2, Author              
Engelhardt, M.3, 4, Author
Hoff, Maike2, Author              
Steele, Christopher2, 5, Author              
Villringer, Arno2, 6, 7, Author              
Ragert, Patrick1, 2, Author              
Affiliations:
1Institute of General Kinesiology and Athletics Training, Faculty of Sport Science, University of Leipzig, Germany, ou_persistent22              
2Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
3Einstein Center for Neurosciences Berlin (ECN), Germany, ou_persistent22              
4Department of Neurosurgery, Charité University Medicine Berlin, Germany, ou_persistent22              
5Department of Psychology, Concordia University, Montréal, QC, Canada, ou_persistent22              
6Berlin School of Mind and Brain, Humboldt University Berlin, Germany, ou_persistent22              
7Charité University Medicine Berlin, Germany, ou_persistent22              

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Free keywords: Cognitive ageing; Consolidation; Motor cortex; Short-term memory
 Abstract: Skill increase in motor performance can be defined as explicitly measuring task success but also via more implicit measures of movement kinematics. Even though these measures are often related, there is evidence that they represent distinct concepts of learning. In the present study, the effect of multiple tDCS-sessions on both explicit and implicit measures of learning are investigated in a pointing task in 30 young adults (YA) between 27.07 ± 3.8 years and 30 old adults (OA) between 67.97 years ± 5.3 years. We hypothesized, that OA would show slower explicit skill learning indicated by higher movement times/lower accuracy and slower implicit learning indicated by higher spatial variability but profit more from anodal tDCS compared with YA. We found age-related differences in movement time but not in accuracy or spatial variability. TDCS did not skill learning facilitate learning neither in explicit nor implicit parameters. However, contrary to our hypotheses, we found tDCS-associated higher accuracy only in YA but not in spatial variability. Taken together, our data shows limited overlapping of tDCS effects in explicit and implicit skill parameters. Furthermore, it supports the assumption that tDCS is capable of producing a performance-enhancing brain state at least for explicit skill acquisition.

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Language(s): eng - English
 Dates: 2020-08-142021-01-142021-02-09
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1038/s41598-021-82275-4
PMID: 33564052
PMC: PMC7873227
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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 11 (1) Sequence Number: 3421 Start / End Page: - Identifier: ISSN: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322