The Evolutionary Origins of Depression

Posted by John Farrier in Science & Tech on August 27, 2009 at 9:02 pm


Psychologists Paul W. Andrews and J. Anderson Thompson, Jr. argue that depression may be an evolutionary advantage developed early in human history. What could be good about depression?

Depressed people often think intensely about their problems. 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.

This analytical style of thought, of course, can be very productive. Each component is not as difficult, so the problem becomes more tractable. Indeed, when you are faced with a difficult problem, such as a math problem, feeling depressed is often a useful response that may help you analyze and solve it. For instance, in some of our research, we have found 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.

Link via Instapundit

Photo credit: Guillermo Perales Gonzalez


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COMMENT

15 comments to "The Evolutionary Origins of Depression"

  1. free games for kids
    August 27th, 2009 at 10:31 pm

    Still, being depressed in the long run isn't particularly a good thing.

  2. SenorMysterioso
    August 27th, 2009 at 10:37 pm

    Depression often leads to death

  3. abdulhamid
    August 27th, 2009 at 11:36 pm

    Now I see why the Massachusetts Institute of Technology has such a high suicide rate.

  4. Sylvain
    August 28th, 2009 at 3:06 am

    I see why a lot of artists with suicide tendencies are genius, but what a price to pay !

  5. eni
    August 28th, 2009 at 5:40 am

    What?
    I understand that some diseases come with evolutionary advantages, but this idea doesn't make much sense to me at all. Most depressed people aren't thinking analytically about serious problems- they're thinking analytically about how much they think their lives suck. And since their lives usually don't actually suck that much- their perceptions colored by depression- I can't see how this helps.

  6. Dale
    August 28th, 2009 at 7:33 am

    There are several levels of depression; not everyone who gets depressed is suicidal, sometimes they just feel down.

    I don't think the article is correct though, sometimes people get depressed about things that happened in the past for which there is no solution.

  7. Gauldar
    August 28th, 2009 at 7:43 am

    Depression has also evolved as a defence mechanism for people to avoid going into risky situations due to a bad experience or as a cover for some other mental disorder. There are many varieties of depression though, and each one should be dealt with differently. There's still a lot of misconceptions about it floating around, but it isn't fully understood, but we are better off now then we were 20 years ago in understanding it.

  8. Tim Giachetti
    August 28th, 2009 at 8:56 am

    I'd like to take a little time and apologize to John and Alex, and I will do my best not to cuss. :P

    I know alot about this affliction as my mother had, and my sister still has, uncontrollable depression.
    I'm not sure I would agree that it is evolutionary but other psychosis are. I.E. Alcoholism, Bi-polar traits etc.

    Sometimes it pays to have low to no morals and not dote on the past.

  9. trvllr
    August 28th, 2009 at 9:34 am

    While the question "is there an evolutionary benefit to ?" is legit, I really dislike how these studies are presented in the media.
    As a depression patient myself I would argue that malfunctions are most of the time just that. Malfunctions. There have to be no "evolutionary roots" whatsoever. As long as it doesn't mess with the patients capability to reproduce (much), evolution isn't in the picture at all.

  10. Timm
    August 28th, 2009 at 10:16 am

    Seeing as how psychology and psychiatry aren't even based on scientific principles, this article is a stretch.

  11. John
    August 28th, 2009 at 10:24 am

    Thanks, Tim. You're a good fella.

  12. JamesG
    August 28th, 2009 at 10:42 am

    I don't buy it. There's a huge difference between being "analytical" and being "depressed." Many studies have revealed two key features of depression: 1. Cognitive distortions that can severely impair one's ability to think rationally, and 2. A pervasive sense of hopelessness about solving one's problems. Granted, there are many levels of depression, but I can't see how any of them could make someone a "better" problem solver!

  13. Zeytoun
    August 28th, 2009 at 11:26 am

    As a person who has gone through Major Depression, I agree with the article.

    I think we really misunderstand depression. I experienced nearly 10 years of it (5 years in the middle being the most intense).

    For the first half, I treated it as a meaningless chemical imbalance. I ignored it, I distracted it, it got worse, I medicated it. I nearly died.

    For the second half, I treated it as a meaningful signal that my life had legitimate issues that needed solving. I spent a couple years in intense introspection, and deconstruction.

    I addressed many, many issues. I no longer have depression. In spite of a childhood of extreme abuse, neglect, and dysfunction, I now am a fully-function adult with healthy relationships. I am not medicated, and I haven't had a single session of therapy.

    Granted it was a rough few years... but at least I got to the bottom of my issues.

  14. Robin
    August 29th, 2009 at 1:32 pm

    I'm not buying it. I've had depression for many years, and I've tried reading literature written by "experts" who have never experienced. much less overcome, depression like I have. How do I know this? They could never have completed the coursework to get their degrees if they had to live with it. I don't "ruminate" on problems until I find a solution. I'm depressed because there are no solutions.

  15. Dandy
    August 30th, 2009 at 12:38 pm

    Oh boy, another fine theory that cannot be proven to be true even 25% of the time, much less be proven to be an axiom.

    When will those outside of that silly religion call psychology learn that it is simply a very lose form of belief, with not one single shred of scietific evidence to back up even a single one their theories?

    As with most standard religion, some phsychologists actually believe they are there to make lives better, but have not one standard way of doing that.


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