Dr Helen Mayberg at Emory University, in Atlanta, Georgia, in the U.S., studied brain scans to look for clues about what happens in the brain when someone is depressed and how different treatments affect brain activity.

She used PET scans to measure brain glucose metabolism, an important index of brain function, and found that scan patterns prior to treatment can provide important clues as to which treatment will be best.

via Do you REALLY need antidepressants? Brain scan can tell whether medication or therapy is best option for depression | Mail Online.