Related Experiment Video
Updated: Jul 8, 2026
11:47
Modulating Cognition Using Transcranial Direct Current Stimulation of the Cerebellum
Published on: February 15, 2015
29.6K
TDCS effects on pointing task learning in young and old adults
E Kaminski1,2, M Engelhardt3,4, M Hoff5
1Institute for General Kinesiology and Exercise Science, Faculty of Sport Science, University of Leipzig, Jahnallee 59, 04109, Leipzig, Germany. Elisabeth.kaminski@uni-leipzig.de.
Scientific Reports
|February 10, 2021
Summary
This study investigated how transcranial direct current stimulation (tDCS) affects explicit and implicit motor skill learning in young and old adults. Results indicate tDCS enhanced explicit learning accuracy in young adults but did not significantly impact implicit learning across age groups.
Area of Science:
- Neuroscience
- Motor Control
- Human Aging
Background:
- Motor skill acquisition involves both explicit (task success) and implicit (movement kinematics) learning, which may represent distinct neural processes.
- Understanding age-related differences in motor learning and the potential modulatory effects of non-invasive brain stimulation like tDCS is crucial for developing targeted interventions.
Purpose of the Study:
- To investigate the effects of multiple transcranial direct current stimulation (tDCS) sessions on explicit and implicit motor learning in young adults (YA) and old adults (OA).
- To examine age-specific responses to tDCS concerning movement time, accuracy, and spatial variability during a pointing task.
Main Methods:
- Thirty young adults (mean age ~27 years) and 30 old adults (mean age ~68 years) participated in a pointing task.
- Participants received multiple sessions of anodal tDCS.
- Explicit learning was assessed via task success metrics (accuracy, movement time), and implicit learning via movement kinematics (spatial variability).
Main Results:
- Age-related differences were observed in movement time, with older adults exhibiting slower movements, but not in accuracy or spatial variability.
- Transcranial direct current stimulation (tDCS) did not facilitate motor skill learning for either explicit or implicit parameters in the overall cohort.
- Contrary to hypotheses, tDCS led to improved accuracy in young adults but not in old adults, and no significant effects on spatial variability were found for either group.
Conclusions:
- The findings suggest limited overlap in the effects of tDCS on explicit and implicit motor skill learning parameters.
- Transcranial direct current stimulation (tDCS) may induce a performance-enhancing brain state, particularly for explicit skill acquisition, with potential age-dependent effects on accuracy.
