Convergence and divergence of apathy and depression

Apathy and depression can occur as independent constructs in various diseases, however, they have also been shown to overlap in certain features. It is not always clear as to how these two constructs are practically and theoretically different (divergent) or similar (convergent). Therefore, this article aims to discuss how the relevant literature has attempted to explain the issue of divergence and convergence of these constructs and to clarify this important, albeit complex, relationship between features of apathy and depression. Finally, important considerations are outlined so that apathy and depression can be assessed and researched while taking in to account these divergent and convergent features.