Objective Integrated Multimodal Electrophysiological Index for the Quantification of Visceral Pain

Inclusion Criteria: * Participants need to be diagnosed with IBS by a healthcare provider according to Rome-III or -IV criteria, with a current report of abdominal pain. * Men and women 18-50 years old * Able to read and speak English * Daily access to a computer with internet access. Exclusion Criteria: * Other chronic pains that are usually not comorbid with IBS, e.g., diabetic neuropathy, myofascial pain, low back pain, peripheral neuropathy etc. * Celiac disease or inflammatory bowel disease * Diabetes mellitus; d) Serious mental health conditions * Women during pregnancy or within 3 months post-partum period * Self- reported Regular use of opioids or other illicit substances. * Participants who have had COVID-19 should be fully recovered, and will be asked if their medical provider has made any restriction on activities.