for people ages 18-65 (full criteria)
Healthy Volunteers
healthy people welcome
at UC Davis
study started
completion around



The purpose of this study is to test the impact of non-invasive brain stimulation, transcranial direct current stimulation (tDCS), on auditory hallucinations, negative symptoms and cognition in schizophrenia. Clinical measures will be used to assess clinical symptoms and cognitive performance to test the hypothesis that a course of tDCS can reduce auditory hallucinations and negative symptoms in schizophrenia.

Official Title

Transcranial Direct Current Stimulation (tDCS) Studies of Auditory Hallucinations, Negative Symptoms and Cognition in Schizophrenia


Schizophrenia, EEG, tDCS, dorsolateral prefrontal cortex, temporoparietal junction, cognitive control, auditory hallucinations, transcranial direct current stimulation, dlPFC/TPJ Stimulation + Rest


You can join if…

Open to people ages 18-65

  • Participants must be able to sufficiently speak and understand English so as to be able to understand and complete cognitive tasks.
  • All subjects must have the ability to give valid informed consent.
  • No children under the age of 18 will be recruited.
  • Diagnosis of schizophrenia, schizophreniform, or schizoaffective disorder
  • Stable outpatient or partial hospital status
  • Normal IQ (>70; IQ will be measured by administering the Wechsler Abbreviated Scale of Intelligence (WASI) test)

You CAN'T join if...

  • Pacemakers
  • Implanted electrical (brain and spinal) stimulators
  • Implanted defibrillator
  • Metallic implants
  • Skin damage or skin conditions such as eczema at the sites where electrodes will be placed
  • Hair styles hindering the placement of electrodes
  • Cranial pathologies
  • Head trauma
  • Epilepsy
  • Mental retardation
  • Any known history of neurological disorders (including epilepsy, amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS), stroke, cerebral palsy, any DSM-5 axis I psychiatric disorder (for healthy control subjects), autism)
  • Uncorrected vision problems that would hinder cognitive testing (this also pertains to subjects with color blindness in tasks where discriminating colored objects/items is necessary for successful performance)
  • Pregnancy
  • Substance dependence in the past six months
  • Substance abuse in the past month


  • 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 15 study participants
Last Updated