Anhedonia is a neurovegetative symptom of Major Depressive Disorder. It is characterized by a lack of experiencing pleasure in activities that the depressed individual use to regularly participate in.
It should be noted that anhedonia can express it self as a lack of physical pleasure and/or the lack of pleasure experience by being around others.
Severe anhedonia is a negative prognostic indicator. Patients often experience some form of anhedonia well after other symptom of depression disappear.
**For in in-depth review of anhedonia and treatment, head on over to our article, "Anhedonia in Patients with Depression: Definition and Implications."