Brain Imaging and Pain in Irritable Bowel Syndrome

Brain Imaging and Pain: Analysis of Placebo Analgesia

This study examines the mechanisms, including brain imaging of placebo analgesia

Inclusion criteria:

• Irritable Bowel Syndrome
• English speaking

Exclusion criteria:

• Chronic pain condition other than Irritable Bowel Syndrome
• Medical condition that would contraindicate use of lidocaine
• Clinical criteria for fibromyalgia
• Presence of systemic disease such as diabetes, thyroid, gastrointestinal or liver disease, collagen vascular disease, malignancy, focal or neurological
• Seropositive HIV
• Pregnancy