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Does Depression Have an Evolutionary Purpose? (2017)

nautil.us

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Re: Does Depression Have an Evolutionary Purpose? (2017)

#41
post #16

Something about this article reminds of Venkatesh Rao article: We Are All Architects Now "A crisis is too good a thing to waste. Not only should you have as many as you have time for, you should succumb to each as quickly and completely as possible, and then bounce back as quickly as you can so you can have another one. Resistance is not just futile, it is counter-productive. This aesthetically appropriate and functi…

This link is amazing. You made my day. Thank you.

Re: Does Depression Have an Evolutionary Purpose? (2017)

#42
post #7

I think the researches described in the article might have over-generalized the concept of "depression" a bit... I feel what we call "depression" is actually a spectrum of symptoms -- although those symptoms might have certain shared common traits (such as strong inertia and not wanting to do anything), they actually could be quite different in other aspects. For instance, when you are not doing anything, it could be…

It's nice that you have feelings, but they're likely using the clinical definition of Major Depressive Disorder, which takes the guess work out of defining who the sample group is.

Yes, I remember there is a DSM (Diagnostic and Statistical Manual of Mental Disorders)...

My point is that, as according to what has been written in the article,

  "...the disordered and extreme thinking that accompanies 
   depression..." 
and

   "In a study of 61 depressed subjects, 4 out of 5 
    reported at least one upside to their rumination, 
    including self- insight, problem solving, and the
    prevention of future mistakes..."
it seems that the article is merely focusing on the type of depression that involves "thinking" and "rumination"...and there is a certain sub-range of the entire spectrum, of what is called "Major Depressive Disorder" as in the "academic" and "clinical" settings, that does not involve thinking or rumination -- or significantly reduced level of thinking and rumination -- then this subtype of depression is not actually covered in that study, and hence the conclusion of the study has no bearing, for that matter, on what we call "depression" as a whole, but only a subcategory of all the possible depressive symptoms ...

Re: Does Depression Have an Evolutionary Purpose? (2017)

#43
post #25

Earlier quoted context omitted.

> this evolutionary mechanism is thrown for a loop in an existence where survival is assured, and meaning becomes the main spectre psychologically. Most people who suffer from depression because of environmental factors have no real substantial changes they can make to their life that would resolve the root issue of their depression. I could "fix" my depression once I had an independent high paying job that let me li…

"I could "fix" my depression once I had an independent high paying job that let me live anywhere and choose to live in the way I need to live in order to be happy." My girlfriend works in a psychiartry for people with depression and she told me that it has nothing todo with success.

"My girlfriend works in a psychiartry for people with depression and she told me that it has nothing todo with success"

Hm, even though I don't work in a psychatry, I would claim otherwise. But I think it depends on the definition of success.

So yes, there are lots of people having depression who are successful by ordinary standards, meaning good career and money. But maybe they focused too much on the money/prestige part and instead should have focused more on doing what they really wanted. But they didn't and therefore failed in life and now blame their brain chemistry for it, instead of their own choices. Much easier, sure.

Re: Does Depression Have an Evolutionary Purpose? (2017)

#44
post #18
post #6

Earlier quoted context omitted.

I think you're onto it. If an organism is not successful in whatever circumstance, then it is for the benefit of the herd (and species) that the individual drop out and not propagate its genes further. It is a braking mechanism. A psychic-emotional watchdog.

I don't think that suicide (logicaly following from "not propagate its genes further") is an actual objective of depression. It is probably more about forcing an individual to think their problem through - that's what you do when you are depressed, constantly thinking about all the things that went wrong in your life. Thing is, in primitive, savannah environment all problems were simple enough that they could be solv…

Yes, you think things through, but if you ultimately don't find a solution, you choose suicide. (or maybe in old Savannah times, just lying aphatic around for ages maybe meant the same, with getting eaten by a lion)

But I would also argue, I that even in primitiv societies, things could get very complex - because their daily life involved also lots of deamons, spirits, ect. you had a bad dream, but that might mean that an enemy sorcerer tried to kill you and now you needed to figure out who and what to do against it ...

Re: Does Depression Have an Evolutionary Purpose? (2017)

#45
Well I think this research paper is a little too detached from the human condition to add a lot insight into what function depression may serve but is definitely illuminating in the mechanics of how it functions. Really I think depression is the part of the human poker game where you have to put your cards down, fold, or leave the game. It forces the sufferer to finally make an attempt to relate to another human being in order to continue moving forward or at least gain some insight into why things aren't working. Suicide has no definite causal relationship with depression because plenty of people do that when they are angry or even happy (so happy life is complete). Suicide will always be the absurd answer to the absurd question and there is not much worth examining in between there in my opinion. There is higher incidence with depression and intelligent people- so perhaps the function of the depressive state is actually to improve the species. I say this because if intelligent people were able to separate themselves easily from everybody else that would have happened a long time ago. I think there must be a genetic component in there for human beings whom are intelligent to actually get stuck in a rut and inadvertently help those around them. Possibly getting depressed is that mechanism because what else is more effective at getting people to talk about their lives, what they are thinking, and what's wrong with them. If they don't feel like talking and actively resist physical signs develop to the point others take notice. The uglier side of this however is that if the depression goes on long enough it hardens and becomes a psychosis or even psychopathic tendencies. First the silver and then the lead unfortunately. More studies need to be done about the group dynamics of depression instead of focusing on the individual or their direct contacts. Certain chain reactions occur in society and we are very much aware of that but psychological studies tend to ignore that certain members of any population act as a catalyst and maybe this is where the physiological inputs are derived from- the greater population as a whole.

Re: Does Depression Have an Evolutionary Purpose? (2017)

#46

Earlier quoted context omitted.

Could you explain what you mean, particularly the last part? So you're saying having that independent high paying job, in your experience, really helped things? For me, that's almost my only "hope" of a better future - I'm involuntarily living with my parents due to renting in my city not making financial sense, and I think that causes me a bit of depression because I feel totally out of control of my situation (I fe…

Here's what people who don't have depression, constantly think about depression: I just need X and then I won't be depressed! That's a NORMAL psychological process (not having something important, feeling negative about it). If obtaining X (career, significant relationship, etc.) does cure your "depression" then you didn't have clinical depression to begin with. You're a human being who was unhappy that their situati…

> "If obtaining X (career, significant relationship, etc.) does cure your "depression" then you didn't have clinical depression to begin with."

Depends. There's a decent amount of evidence that exercise can help reduce episodes of depression, even clinical depression. If obtaining X is obtaining a healthier body, then there's a decent chance you can help to lift yourself out of a funk by getting it. However, there's comfort in believing that something can't be helped, so I won't blame you if you don't believe me.

Re: Does Depression Have an Evolutionary Purpose? (2017)

#47

Tangential, but this psychologist argues that depression evolved as a behavioral shutdown mechanism to prevent humans from over-investing in tactics or behaviors that did not yield any benefit (from a dopaminergic standpoint) -- https://www.psychologytoday.com/blog/theory-knowledge/201604... . The reasoning is that we conserve energy by not pursuing "dead-ends". Naturally, this evolutionary mechanism is thrown for a…

There seem to be two general responses to problems: anger or depression. Righteous anger properly channeled can be a force for good. But if your current crappy situation is the least worst answer you can come up with, depression is the lesser evil. You shouldn't rock the boat if there is zero upside and a lot of downside to doing so.

This was the Eureka! moment of the article for me:

What’s more, once the researchers took the effect of physical strength out of the equation, men and women were equally likely to be depressed.

Humans, and men especially, are pre-disposed to solve social problems with violence. In cultures where violence is restrained or completely removed as a solution, it's not surprising that more men are depressed.

Re: Does Depression Have an Evolutionary Purpose? (2017)

#48
post #40

Evolutionary psychology reminds me of religious sermons. The axiomatic assumption is that everything happens for a purpose and the cause is always evolution (or God) [1], and so, if something happens it must have a purpose. All that's needed is to interpret reality to uncover it. If something good happens it's because the purpose is to reward us, and if bad something happens, it's because the purpose is to teach us.…

Isn’t it predicated on the notion of heredity and influence on sexual fitness? The assumption here being, somehow, there’s a genetic markup which positively or negatively influences propensity for depression, and that that has a positive / negative effect on procreation (either directly or through survival)? If the original effect of the genetic trait was different (as someone else mentioned) and it had a positive effect on fitness (survival), then that’s still a valid order of cause and effect analysis , and not assumption of intelligent design.

Re: Does Depression Have an Evolutionary Purpose? (2017)

#49
post #40

Evolutionary psychology reminds me of religious sermons. The axiomatic assumption is that everything happens for a purpose and the cause is always evolution (or God) [1], and so, if something happens it must have a purpose. All that's needed is to interpret reality to uncover it. If something good happens it's because the purpose is to reward us, and if bad something happens, it's because the purpose is to teach us.…

The idea is to ask where a consistent pattern has its beginning, to estimate where it will lead to, etc. Its primary focus is not necessarily focused on genetics, but something that exists has to come from somewhere.

> Nothing we know about biology in general and evolution in particular entails that assumption

That's a bigger statement than you could probably validate So it doesn't falsify this could-be story.

Re: Does Depression Have an Evolutionary Purpose? (2017)

#50

Tangential, but this psychologist argues that depression evolved as a behavioral shutdown mechanism to prevent humans from over-investing in tactics or behaviors that did not yield any benefit (from a dopaminergic standpoint) -- https://www.psychologytoday.com/blog/theory-knowledge/201604... . The reasoning is that we conserve energy by not pursuing "dead-ends". Naturally, this evolutionary mechanism is thrown for a…

> this evolutionary mechanism is thrown for a loop in an existence where survival is assured, and meaning becomes the main spectre psychologically. Most people who suffer from depression because of environmental factors have no real substantial changes they can make to their life that would resolve the root issue of their depression. I could "fix" my depression once I had an independent high paying job that let me li…

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