Study Stopped
An equivalence analysis demonstrated no statistical difference, and bayesian inference testing showed the potential for only a negligible effect.
Modulation of Motor Learning Via tDCS in a Dexterous Video Game Task
1 other identifier
interventional
40
1 country
1
Brief Summary
The purpose of this study is to determine whether "transcranial direct current stimulation" (tDCS) is effective in enhancing learning of complex motor tasks of precision and accuracy that require the simultaneous coordination of both hands. The study will utilize a between-subjects, SHAM controlled design. Subjects will be randomly selected to receive either SHAM (n=26) or a-tDCS (n=26) stimulation and will be blinded to their condition throughout testing. Subjects will complete a total of two testing sessions, separated by \~24 hours. Both sessions will have the subject play the videogame "Guitar Hero", with a single song done for several trials as pre- and post-assessments. The first session will contain a 20-minute practice/stimulation block where subjects practice the guitar task while receiving either "active" or "inactive" stimulation of the motor cortex. The first session will last approximately 75 to 90 minutes whereas the second session will last approximately 15 to 20 minutes.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Apr 2025
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 4, 2025
CompletedFirst Submitted
Initial submission to the registry
August 18, 2025
CompletedFirst Posted
Study publicly available on registry
October 2, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 3, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 3, 2025
CompletedJune 1, 2026
May 1, 2026
8 months
August 18, 2025
May 28, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Improvement in a video game
To determine whether a-tDCS influences motor skill acquisition of a dexterous video game task by measuring the outcome of videogame performance (number of notes played) with and without a-tDCS
1 year
Secondary Outcomes (1)
Retention and Learning
1 Year
Study Arms (2)
tDCS
EXPERIMENTALThis group will receive 20 minutes of 1 mA tDCS stimulation to the motor cortex while playing the videogame.
SHAM
PLACEBO COMPARATORThis group will receive 30 seconds of 1 mA tDCS stimulation to the motor cortex and then it will shut off, effectively serving as a control, while subjects play the videogame for 20 minutes
Interventions
Eligibility Criteria
You may qualify if:
- Between ages 18 and 45 years old (to avoid any changes in the developing brain, or with aging).
- Answer 'no' to questions 2 through 16 on the tDCS checklist as these factors can increase likelihood of adverse events with tDCS
- No neurological damage, disease, or dysfunction (nerve damage, chronic pain disorders, diabetic neuropathy) that affect the upper limbs.
- No significant acute or chronic medical, neurologic, or illness in the patient that, in the judgment of the Principal Investigator, could compromise subject safety, limit the ability to complete the study, and/or compromise the objectives of the study
You may not qualify if:
- Currently prescribed and taking stimulant medication (Adderall, Ritalin, Vyvanse, etc.)
- Consumption of over-the-counter stimulants such as caffeine or nicotine (coffee, soda, supplements, energy drinks, tobacco products, or other nicotine containing products such as gum, vape pens, etc...) 12 hours prior to entering the lab on the day of testing as this can directly affect cortical excitability. If a subject takes any of these substances 12 hours prior to session 1 they will be asked to reschedule for a later date.
- Have played a real stringed instrument in the last 12 months (e.g. guitar, bass, violin)
- Have played the videogame "Guitar Hero" on a traditional guitar controller in the last 12 months.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Institute for Fitness and Sport
Indianapolis, Indiana, 46202, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Zachary Riley
Indiana University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Masking Details
- The subjects should not know which group they are in with the SHAM protocol
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
August 18, 2025
First Posted
October 2, 2025
Study Start
April 4, 2025
Primary Completion
December 3, 2025
Study Completion
December 3, 2025
Last Updated
June 1, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will not share