Brain Imaging Study on Biomarkers for Chronic Back Pain

Positive treatment expectations will be induced by giving participants capsules containing inert material and telling them that the capsules contain an effective drug that has been approved for treating Chronic Back Pain. They will be requested to take two capsules twice a day and report their pain on paper forms organized as a calendar.

These Chronic Back Pain participants will not be given any placebos and will be requested to report their pain on paper forms organized as a calendar.

Healthy control participants will not receive a placebo drug or be put on a waitlist.