Johns Hopkins Clinical Research Study

Effects of excitation and inhibition of the temporo-parietal cortex via tDCS on reading performance in children with dyslexia.

IRB Number: NA_00079977
Principal Investigator: Celnik, Pablo

Study Description:

This research is being done to help us better understand dyslexia.

Our goal is to learn about areas of the brain involved in dyslexia.  We want to study how mild stimulation or inhibition of areas of the brain will affect reading in dyslexic children.  We will use brain stimulation called tDCS (transcranial direct current stimulation). tDCS uses a weak electrical field to stimulate the brain. The electrical field is created by electrodes. 

Before and after the stimulation, participants will take reading tests. The reading tests will look at several reading skills. If the brain area in question is important for reading, we expect to see changes in test performance. 

We hope this study will provide us more information about dyslexia.  The study should teach us about brain areas used in reading.  Eventually this information may be useful to improve treatment for people with dyslexia.


Eligibility Criteria:

Healthy children with dyslexia between the ages of 8 and 12 years may join this study. 

They must not have a history of other learning disabilities or neurological disorders.  They should not have a history of brain injury, seizures, or strokes.  They should not have any major health problems including heart or lung disease.  They must not have metal implants. 

They must not be taking neuro-psychiatric medications. 


Recruitment Contact Name:Mary Gregory
Contact Phone:443-923-9506
Contact E-Mail: mgrego10@jhmi.edu; gregoryma@kennedykrieger.org

Location of Study Visits:

  • Johns Hopkins Hospital East Baltimore Campus
  • Kennedy Krieger Institute 707 Broadway

Study will provide compensation: Yes


  • Dyslexia
  • Reading