Mood disorder is a group of diagnoses in the Diagnostic and Statistical Manual of Mental Disorders (DSM) classification system where a disturbance in the person's mood is hypothesized to be the main underlying feature. The classification is known as mood (affective) disorders in ICD 10. We invite investigators to contribute original research articles as well as review articles that will stimulate the continuing efforts to understand mood disorder. Preference is given to articles with a clear empirical component, whether including hypotheses testing, treatment model building, or a review of empirical work. Theoretical and speculative articles are welcomed as well, for they contribute to the forming of empirically testable hypotheses. We are particularly interested in articles focusing on the novel concept of psychopathology and treatment in mood disorders.

Potential topics include, but are not limited to:

• Epidemiology of mood disorders
• Pathogenesis of mood disorders
• Etiology and treatment in mood disorders
• Gender differences in mood disorders
• Comorbidity in mood disorders
• Biopsychosocial aspect in mood disorders
• Comparison and valuing diagnosis of mood disorders