Clinical Research Directory

Inclusion Criteria: * Children aged 6-12 years at the time of enrollment. * Clinical diagnosis of Attention-Deficit/Hyperactivity Disorder (ADHD), any presentation type, confirmed using the Vanderbilt ADHD Diagnostic Parent Rating Scale and clinical interview. * Intelligence quotient (IQ) ≥ 70 as measured by the General Ability Index (GAI) from the Wechsler Intelligence Scale for Children - Fifth Edition (WISC-V). * Ability to understand and follow instructions for the Attention Network Test (ANT) and stimulation procedure. * Stable medication regimen for ADHD (if any) for at least 4 weeks before the start of the study. * Written informed consent from a parent or legal guardian, and assent from the child when appropriate. Exclusion Criteria: * History of epilepsy, seizures, or abnormal EEG suggestive of seizure risk. * Presence of metal implants, devices, or foreign bodies in or near the head (except dental fillings) that are contraindicated for TMS or MRI. * Serious neurological disorders other than ADHD (e.g., cerebral palsy, brain injury, neurodegenerative disease). * Severe psychiatric disorders requiring hospitalization or urgent intervention. * Current or past history of significant head trauma with loss of consciousness \> 5 minutes. * Uncorrected hearing or vision problems that could interfere with task performance.