Differences In Brain Mark Risk Of Depression

03.23.09 | FL News Team

Researchers claim differences in the outer layer of the brain can point to a risk of developing depression. Brain scans indicate a 28-percent thinning in the right cortex in people who had a family history of depression compared with people who did not. The condition was only linked with a family predisposition to depression. People who suffered depression also had thinning on the left side of the cortex.

Dr. Bradley Peterson of Columbia University Medical Center and the New York State Psychiatric Institute speculates that a thinner right cortex may put a person at greater risk of depression by interfering with the ability to respond to other people on a social and emotional level. The study is published in the "Proceedings of the National Academy of Sciences."