Depressive Disorder, Symptoms, Diagnosis and Treatment Approach SIGECAPS is a very good way of remembering the symptoms of depression. Dr. Adam Jones in this video describes the presentation, sub-types, treatment approach and the differential diagnosis of major depressive disorder. He connects the possible symptoms to an easy mnemonic to remember them. Following topics are discussed: *Causes of mood disorders. *Symptoms of a depressive episode. *Diagnosis of depressive disorder. *Differential di