Pedro L. Delgado, MD

Subjective complaints of impaired concentration, memory, and attention are common in people with major depressive disorder (MDD), and research shows that a variety of structural brain abnormalities are associated with MDD.1 These findings have intensified the interest in quantitative assessment of cognitive and neuropsychological performance in patients with mood disorders. Many studies that used standardized cognitive tests have found that mild cognitive abnormalities are associated with MDD and that these abnormalities are more pronounced in persons who have MDD with melancholic or psychotic features