A simpler definition for major depressive disorder

Researchers from Rhode Island Hospital's department of psychiatry propose that the definition for major depressive disorder (MDD) should be shortened to include only the mood and cognitive symptoms that have been part of the definition in the Diagnostic and Statistical Manual of Mental Disorders (DSM) for the past 35 years. Their recommendation would exclude those symptoms that are currently part of the definition that may be associated with medical illness rather than depression. The proposal is based on a study that appears in the July 23 online first edition of the journal Psychological Medicine.

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