Depression May Provide Cognitive Advantages

Hugh Pickens writes "Paul W. Andrews and J. Anderson Thomson, Jr. argue in Scientific American that although depression is considered a mental disorder, depression may in fact be a mental adaptation which provides real benefits. This is not to say that depression is not a problem. Depressed people often have trouble performing everyday activities, they can't concentrate on their work, they tend to socially isolate themselves, they are lethargic, and they often lose the ability to take pleasure from such activities such as eating and sex. So what could be so useful about depression? 'Depressed people often think intensely about their problems,' write the authors. 'These thoughts are called ruminations; they are persistent and depressed people have difficulty thinking about anything else. Numerous studies have also shown that this thinking style is often highly analytical. They dwell on a complex problem, breaking it down into smaller components, which are considered one at a time.' Various studies have found that people in depressed mood states are better at solving social dilemmas and there is evidence that people who get more depressed while they are working on complex problems in an intelligence test tend to score higher on the test (PDF). 'When one considers all the evidence, depression seems less like a disorder where the brain is operating in a haphazard way, or malfunctioning. Instead, depression seems more like the vertebrate eye — an intricate, highly organized piece of machinery that performs a specific function.'"

Comments

Re:Reverse causation

[McNihil]

You mean:
http://en.wikipedia.org/wiki/Weltschmerz

Re:old news

[alexhs]

Here is a link (pointing to studies).

Well doh

[Kjella]

Honestly, we all know that there are things like "taking things too seriously" and "taking things too lightly". Depression isn't there as a cruel joke to make miserable people more miserable, it's to make sure that in a grave situation you take a honest look at the situation and deal with it. It's a natural self-defense mechanism that for example you probably wouldn't want to have sex, get pregnant and have a child in a bad situation, being a leftover from before contraception. Of course some people get too much of it, just like others want to cuddle the cute grizzly bear and don't see a problem until they make a Darwin award of themselves. Very few aspects of typical human behavior is really that irrational, though it can be really out of place in the modern world.