Clinical and Neurobiological Profile Predictive of Pejorative Outcome of Depression

Depression is a frequent disease which can be marked by therapeutic resistance. It is described as one of the most disabling disease with high cost for society. World Health Organization pointed out that 350 million people are suffering from depression in the world. This pathology is considered underdiagnosed, with inadequate care resources and stigmatization. There is a wide range of evidence in current literature that anxiety is one of the most important factors involved in biological mechanism of treatment resistance in depression. To date, there is a lack of knowledge on this topic. A better understanding of the role of anxiety in the maintenance of depressive state will allow to i) identify quickly and more accurately patients at risk of pejorative evolution and ii) develop specific therapeutics targeting this dimension which remain badly controlled with actual therapeutics.

Inclusion Criteria: * Men and women older than 18 years-old; * Suffering from a Mood Depressive Episode ( according to DSM IV criteria), and-or Mood Depressive recurrent depression (unipolar or bipolar) (\