The Longitudinal Study of Stimulant Use Disorder

Who can take part

• Be an adult between the ages of 18-85, inclusive
• Be able to sufficiently understand, speak, and read English to provide informed consent and ask relevant questions
• For participants with current/history of Stimulant Use Disorder: Subjects must meet MINI International Neuropsychiatric Inventory (MINI) criteria for current stimulant use disorder or meet MINI supplemental criterial for lifetime stimulant use disorder. For Healthy control individuals: Subjects must meet criteria for a healthy control: No history of substance use disorder or other mental illness as defined by the MINI International Neuropsychiatric Inventory (MINI)
• Be willing to provide consent and comply with all procedure instructions
• Be willing to provide blood samples and participate in EEGs and MRIs

Who cannot take part

• For participants with stimulus use disorder cohort: Have a history of schizophrenia, schizoaffective disorders, or chronic psychotic disorders based on the MINI. For healthy control individuals: Have a history of substance use disorder or any other psychiatric disorder as defined by the MINI and supplemental questions
• Have any condition for which study participation would not be in their best interest (e.g., cognitive impairment, unstable general medical condition, intoxication, active psychosis) or that could prevent, limit, or confound the protocol-specified assessments, in the opinion of the investigator or their designee
• Require immediate hospitalization for psychiatric disorder or suicidal risk as assessed by a licensed study clinician