We tend to think of connectivity as a good thing. For instance, the more connections one has on LinkedIn, the better one’s job prospects would appear. But in people who appear to have lost interest in things they once found pleasurable, too much brain connectivity may actually fuel the condition, according to a study in the Journal of Affective Disorders.
Knowing that this condition — which doctors call anhedonia — is associated with mental illnesses could improve diagnosis, by providing physical evidence, versus self-reporting.
