Neuroimaging of Opioid Phase (OPAL)

Inclusion Criteria for Healthy Controls: 1. female and ages 18+ 2. ability to read/understand English and give consent to participate 3. no current or history of chronic pain 4. not regularly taking any pain-relieving or mood-altering medications (per PI discretion) 5. absence of use of opioid medications Inclusion Criteria for Individuals with Chronic Pain: 1. female and ages 18 + 2. ability to read/understand English and give consent to participate 3. self-reported or physician diagnosis of fibromyalgia and/or chronic pain 4. current use of opioid medication(s) for inclusion in the opioid patient group -OR- absence of use of opioid medications for inclusion in the non-opioid patient group Exclusion Criteria (for both groups): 1. limited ability to participate fully in behavioral tasks, longitudinal follow-up 2. MRI contraindication 3. any factors that at the discretion of the investigators would adversely affect the participant or the integrity of the study 4. male