Research scaffold
Divergent social reward responses in bipolar and unipolar depression
A summary of imaging work examining how social reward processing differs between bipolar depression and unipolar depression.
Key Insight
Depression severity does not map onto reward processing in the same way across diagnostic groups. Distinguishing bipolar from unipolar depression at the level of social reward response can clarify clinically important heterogeneity.
Implications
This kind of finding supports more targeted neuroimaging questions in psychiatry and may help researchers and clinicians think more carefully about heterogeneity within depressive syndromes.