Modulation of Behavioral Inhibition in Attention Deficit Hyperactivity Disorder

• Clinical diagnosis of ADHD
• Parent informed consent and child assent

Exclusion Criteria:

• Intracranial pathology from a known genetic disorder (e.g., Neurofibromatosis Type 1 (NF1), tuberous sclerosis) or from acquired neurologic disease (e.g. stroke, tumor), cerebral palsy, history of severe head injury, or significant dysmorphology
• History of fainting spells of unknown or undetermined etiology that might constitute seizures
• History of seizures, diagnosis of epilepsy, or immediate (1st degree relative) family history epilepsy
• Chronic (particularly) uncontrolled medical conditions that may cause a medical emergency in case of a provoked seizure (cardiac malformation, cardiac dysrhythmia, asthma, etc.)
• History of head injury resulting in prolonged loss of consciousness
• Substance abuse or dependence within the past six months
• Chronic treatment with prescription medications that decrease cortical seizure threshold that the patient is unable to withhold from taking during study visits
• Damaged skin on the scalp (i.e., skin with ingrown hairs, acne, razor nicks, wounds that have not healed, recent scar tissue, broken skin, etc.)