Functional Neuroimaging and Genetic Vulnerability to Suicidal Behavior

Inclusion Criteria: * right-handed * arm suicidal : Personal history of unipolar depressive disorder or bipolar disorder and having realized in his life at least one suicide attempt * arm emotional Witnesses : Personal history of unipolar depressive disorder or bipolar disorder and have never done in his life attempted suicide * arm healthy Witnesses : any current or past personal history of psychiatric disorders of Axis I and have never done in his life attempted suicide Exclusion Criteria: * Cons-indications to the use of MRI * Existence of a past history of head trauma with loss of consciousness or neurological brain disorder or secondary neurological suffering suicidal gesture.