for people ages 18-50 (full criteria)
Healthy Volunteers
healthy people welcome
at UC Davis
study started
completion around



The purpose of this study is to better understand the neural correlates of higher-order cognition, both in the healthy brain and in schizophrenia, and to determine how these mechanisms are modulated by transcranial direct current stimulation (tDCS) at frontal and occipital scalp sites. Testing the effects of tDCS at these scalp sites on cognitive task performance will help us understand the roles of the brain regions corresponding to these sites during higher-order cognitive processing (language comprehension, cognitive control, and related attention and memory processes). Behavioral and electrophysiological (EEG) measures will be used to assess cognitive performance. Our overarching hypothesis is that stimulating prefrontal circuits with tDCS can improve cognitive control performance, and ultimately performance on a range of cognitive tasks, as compared to stimulating a different cortical region (occipital cortex) or using sham stimulation.

This study is solely intended as basic research in order to understand brain function in healthy individuals and individuals with schizophrenia. This study is not intended to diagnose, cure or treat schizophrenia or any other disease.


Healthy, Transcranial Direct Current Stimulation, DLPFC Stimulation, Occipital Stimulation


You can join if…

Open to people ages 18-50

  • between ages of 18 and 50
  • ability to sufficiently speak and understand English so as to be able to understand and complete cognitive tasks
  • ability to give valid informed consent

You CAN'T join if...

  • no history of head trauma
  • no current or previous history of treatment with psychotropic medication
  • corrected vision 20/30 or better
  • tDCS/MRI contraindications, including: pregnancy, ferrous metal in any part of the body, serious medical conditions, claustrophobia, metallic implants, skin damage, conditions such as eczema at electrode sites, cranial pathologies


  • Imaging Research Center accepting new patients
    Sacramento California 95817 United States


accepting new patients
Start Date
Completion Date
University of California, Davis
Study Type
Expecting 75 study participants
Last Updated