He's a kiddie shrink i think.

I am not personally familiar with his work, but here is some information about it: "Daniel G. Amen, MD is a child and adult psychiatrist, self-help guru, bestselling author and medical director of the Amen Clinic. Amen is a Distinguished Fellow of the American Psychiatric Association. He is the CEO and medical director of Amen Clinics, Inc. in Newport Beach and Fairfield, California, Tacoma, Washington and Reston, Virginia. Amen Clinics, Inc have the world’s largest database of functional brain scans relating to psychiatric medicine, totaling now more than 40,000 scans, and the clinics have seen patients from 62 countries. Dr. Amen is an Assistant Clinical Professor of Psychiatry and Human Behavior at the University of California, Irvine School of Medicine." "The Amen classification is a new guideline for classifying psychiatric patients into particular groups of ADHD created by Dr. Daniel Amen of the University of California, Irvine School of Medicine. - Description The Amen classification system defines six different subtypes of ADHD. These subtypes were created using SPECT imaging on patients who were known to have ADHD. Dr. Amen argues that differences seen in the imaging for sufferers of ADHD correspond to the new classification system he has created. A patient can have a range from none to all subtypes of ADHD under the Amen system. The Amen classification consists of the following ADHD subtypes: Type I - Classic ADD (ADHD) Type II - Inattentive ADD Type III - Over-Focused ADD Type IV - Temporal Lobe ADD Type V - Limbic ADD Type VI - "Ring of fire" ADD " Source and further information: http://en.wikipedia.org/wiki/Daniel_G._Amen