The Effect of Multi-Session Transcranial Direct Current Stimulation (tDCS) on Cognitive Performance in Youth with Persisting Concussion Symptoms

Exploring the Clinical Utility of Transcranial Direct Current Stimulation (tDCS)


Some youth with concussion have symptoms weeks after their injury, like problems doing more than one thing at a time. We want to see if transcranial direct current stimulation (tDCS), which delivers a low level of electricity to the brain, can help reduce these symptoms.


Deryk Beal, PhD, Reg. CASLPO, CCC-SLPNick Reed, PhDRyan Hung, MD, MSc,Lily Riggs, Ph.D., C.Psych.

Participate in this study

Do you have trouble with lasting symptoms after a concussion? Participate in a clinical trial about non-invasive brain stimulation.

Who can participate

Adolescents ages 13-18 years are eligible to take part, if they: 

  • Have had a concussion in the last 4 weeks;
  • Still have symptoms; and 
  • Meet certain safety criteria.

What's Involved

Three visits to Holland Bloorview (2 hours, 1 hour, and 1 hour sessions) within one week for tDCS and doing a computer task. You will need to share some medical information and complete some questionnaires. You will be assigned to either a control (low tDCS stimulation) or experiment (higher tDCS stimulation) group.


December 31, 2017

Interested in participating

If you are interested in participating in this study or have additional questions, please contact Keelia Quinn de Launay at (or you may contact us via phone at 416-425-6220 ext 3083). Contacting us does not obligate you or your child to participate in the study.

Funding Agency

CONNECT Lab and the Holland Bloorview Centre for Leadership in Acquired Brain Injury.

Learn more about this study