Home-based Transcranial Direct Current Stimulation Open Trial for Behavioral and Cognitive Symptoms in Huntington's Disease

Participant: Who May Qualify: - confirmed HD mutation carriers and/or established family history alongside typical symptoms (i.e. chorea) of HD; - early (stages 1 and 2) or moderate (stage 3) stages according to Shoulson-Fahn - exhibit mild to moderate behavioral symptoms defined by severity scores in the PBA-S between 1 and 3 for any of the evaluated symptoms and no symptoms with a severity score of 4 - stable doses of medications for at least one month - Have a caregiver willing to be present during tDCS sessions and answer questionnaires. Who Should NOT Join This Trial: - unstable medical conditions - history of epilepsy - metallic objects in the brain - Have a caregiver willing to be present during tDCS sessions and answer questionnaires. - clinical diagnosis of major cognitive disorder or dementia - Have risk of suicidal behavior, defined as any suicidal behavior or suicidal ideation of type 4 or type 5 based on the Columbia-Suicide Severity Rating Scale (C-SSRS) in the 3 months prior to screening - simultaneous participation in other clinical trial - Individuals determined to be incapable of consent per past medical history or via assessment by the study staff at time of consent. Caregiver: Who May Qualify: -willingness to participate in the study Who Should NOT Join This Trial: -motor/cognitive symptoms related to Alzheimer's disease or Huntington's disease that might impair the ability to assist the participant during the research study. Always talk to your doctor about whether this trial is right for you.