The Supraspinal Control of Lower Urinary Tract Function in Patients with Orthotopic Sigmoid Neobladder.

This study is using functional MRI (fMRI) brain scans to understand how the brain controls bladder function in patients who have had their bladder replaced with a surgically constructed pouch made from part of the intestine (called a neobladder). **You may be eligible if:** - You are right-handed - It has been at least 3 months since your neobladder surgery - You are willing to have an MRI scan and sign a consent form **You may NOT be eligible if:** - You have had prior bladder radiation - You have a history of prostate cancer - You have neurological conditions (such as Parkinson's, Alzheimer's, epilepsy, or a prior stroke) - You have mental health disorders - You have claustrophobia or metal implants that prevent MRI - You have spinal cord injury or diabetic nerve damage affecting the bladder - You have urethral stricture (narrowing of the urethra) Talk to your doctor to see if this trial is right for you.