Tuesday, May 10, 2011

Does Depression Help Us Think Better?

The short answer is yes. Check out the excellent post by Jonah Lehrer - here:

Depressed patients approximated the optimal strategy much more closely than non-depressed participants did. The main problem with healthy subjects is that they proved lazy, unwilling to search through enough applicants. Those with depression, on the other hand, were much more willing to keep on considering alternatives, which is why they performed far better on the task. While this study comes with many caveats, it remains an interesting demonstration that depression, at least in specific situations, seems to enhance our analytical skills, making us better at focusing on social dilemmas.

It’s also worth pointing out that this controversial theory of depression builds on a growing literature on the mental benefits of sadness. Joe Forgas, for instance, has repeatedly demonstrated in experiments that negative moods lead to better decisions in complex situations. The reason, Forgas suggests, is rooted in the intertwined nature of mood and cognition: sadness promotes “information-processing strategies best suited to dealing with more-demanding situations.” This helps explain why test subjects who are melancholy — Forgas induces the mood with a short film about death and cancer — are better at judging the accuracy of rumors and recalling past events; they’re also much less likely to stereotype strangers.

Perhaps Aristotle was a little right: “All men who have attained excellence in philosophy, in poetry, in art and in politics, even Socrates and Plato, had a melancholic habitus; indeed some suffered even from melancholic disease.”

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