http://www.amenclinics.com/brain-science/cool-brain-science/cool-brain-facts/As a neuropsychiatrist for 20years Dr. Daniel Amen’s clinics have amassed the world’s largest database of brain scans related to behavior, more than 21,000. He states that “One of the factors that drew me to SSS (Scotopic Sensitivity Syndrome aka Irlen Syndrome) is its simplicity and effectiveness.