Aspies For Freedom

Full Version: The cause of Asperger's : Evolution
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Lizmom23 Wrote:
I think that Aspergers represents the "in-between" state of NT and classic autism. Imagine, for example, that NT carry two copies of a master sensory gene (SS).  At some point, the gene aquired a mutation (M). Two copies of the mutated gene (MM) produces autism. One copy of the original gene, and one mutated one (SM) produces Aspergers. Clearly, autism is not going to increase reproduction and will not be selected for by natural selection. BUT, as it the case with a number of recessive diseases, the heterozygous condition confers an advantage, therefore the mutant gene stays around. Two copies of the sickle cell trait is lethal. But one copy reduces malarial infection. Two copies of the cystic fibrosis gene is lethal. But one copy confers resistance to tuberculosis. So two copies of the yet-to-be determined mutated sensory gene cause severe problems, but one copy results in advantages - and therefore stays in the population.  I'll go further and say that as we have moved from a society of hunter/gathers/farmers/etc to a society where security is derrived from economic success, benefits from Aspergers type is increasing, producing even more ASD in the population.


very well put!

Batman55 Wrote:
Let's not get too enamored with this "superiority" or "master race" idea, for example there are plenty of AS/autistic people who do not have an advantageous intellect.


Agreed - there's an common idea when human evolution is mentioned that any step is the "next step", or the "better option".

In reality, especially when you look at human evolution, is that evolutionary "branches" were quite common - in fact at one point there were three separate species of human co-existing. The only reason that only one exists now is that homo sapiens sapiens, or modern man, killed off or starved out the others.

The spectrum gene doesn't represent an evolutionary "advance", just an evolutionary branch. There's nothing saying we have to be "better" to be a part of evolution.

EvilZakkie Wrote:
Agreed - there's an common idea when human evolution is mentioned that any step is the "next step", or the "better option".


I think of this as the "myth of progress." It seems to permeate everything, not just evolutionary discussions. Some one wrote a book with this title last year, but I've been using those words to describe it for many years.

Great link, Erkolos!

And I meant that the book was "published" last year -- no idea when it was "written."

Lizmom23 Wrote:

I think of this as the "myth of progress." It seems to permeate everything, not just evolutionary discussions. Some one wrote a book with this title last year, but I've been using those words to describe it for many years.
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There is a "better" in terms of evolutionary fittness. A "better" trait is selected for and maintained. But "better" in this context does not carry with it a moral connotation of superiority or even preferableness - although both may get assumed at some point. Most humans today would argue that standing upright is "better" because that it is cultural norm and the circumstance that fits our environment and have even assigned a certain amount of intellectual and moral supperiority to standing upright compared to our crouched cousins and ancestors.  Despite the fact that we built our environment to suit that characteristic and not because we objectively choose that standing upright was "better".
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Actually, the idea of progress connotes movement toward a goal; that there is some more desirable end state and each change brings us closer to it. Similarly, describing evolutionary change as taking the "next step" connotes movement toward a goal.  But change is only change. Perhaps it is because I am a pragmatist that I see all life as, essentially, pragmatic: whatever works.  The goal is constant and unchanging, not an end state toward which life strives.  Bear in mind that this may have been a random opportunity for me to riff on something that is a personal peeve rather than much of a reflection on anything that has been said here. And forgive me if that is required.

Simen,jesus...

Shoes was just expressing a point of view,an idea..there was no need to ram it down their throat...

you have done this several times in the last few days to new members.
kindly stop.
alright, I'll admit i jumped down your throat there.

but your comment about scientific journals?
that was waaay outta line.

i'll admit, i didnt stop and think before i posted,and i am also in the wrong here.
and i'll also admit i am somewhat predisposed to not give you the benefit of the doubt...why,i am not sure.
but i have noticed it,so i'll be curbing it Wink

sorry Tongue

erkolos Wrote:
You need to learn gentle criticism.


Actually, he wasn't doing half as bad as I do it. I just can't help it. Once a point is made I begin testing it and the words come out as if I'm under some sort of automation.

Sorry, if anyone "feels attacked". On the "Asperger's explained: I'm sane thread", I may have been a little hard on that fellow.

mikegeo Wrote:
why wouldn't aspergers/autism increase reproduction?  this statement denotes/insinuates that people on the spectrum do not have sexual interests or needs.  I think this is a crock.  One does not need to be overly social to procreate or even be in a relationship and have children.  obviously, we have been here since the begining and we are still here on this planet, and so our very exisitance is proof that we are genetically equal, or better, than our NT counterparts.  You speak of us as an extinct species; historical in nature; yet, we are the innovators of ideas and art; individualist thinking; both philosophical and ingenious.


Just wanted to point out that "would not increase reproduction" isn't the same as saying "would decrease reproduction".

In that sense, she's correct - there's nothing to suggest that autistic people have more children, or are more likely to have children.

And there's no such thing as "genetic equality" or "genetic superiority". For example, mosquitoes continue to exist, and no-one is saying that they are "genetically equal" to humans...

I do think that we are the equal of Neurotypicals, but trying to argue it from an evolution perspective is self-defeating.

mikegeo Wrote:

EvilZakkie Wrote:
Just wanted to point out that "would not increase reproduction" isn't the same as saying "would decrease reproduction".


are you smoking crack cocaine???  really, just read back what you just stated, ok?


I'm saying that she may have meant "may have about the same amount of reproduction". Just because something's not a higher number doesn't mean that it's a lower number.

mikegeo Wrote:
more children or less children is an irrelevant analogy;  this is an NT concept of mass/dominance/ majority rule; facicious and derogatory in naute, in my opinion...the fact is, if you consider the theory of evolution as a relevant barometer to your beliefs, than we as aspergians are still here, stronger and better than ever, and it appears that our intellects and ingenuity are the common thread to human growth and "evolution" if you will...


My point was that survival has little to do with superiority or equality, and that it's ridiculous to use evolution as "a relevant barometer to your beliefs".

For example, the Incas were a highly advanced society for their time, and they were entirely wiped out by the Spanish. Likewise, if Autistics were wiped out via pre-natal testing plus abortion, we would still have been the equal of anyone else.

In other words, evolution isn't a good tool to use to argue Autistic rights.

I believe in equality, but it's much better to argue it as a human rights issue than a "genetic equality" debate.

erkolos Wrote:
I'm not so sure about that, aspies might find other ways you know.

In the last hundred years fewer children are born per person at least in the industrialized part of the world. There is probably a big number of neurotypicals who never get children either.

Question is, what is the ratio between neurotypical and autistic reproduction.

Ofcourse what you said sounds logical, but I question whether it is a significant factor.


I think at the end of the day, the actual number of Autistic people reproducing is irrelevant, as it's obviously enough to be self-sustaining - it doesn't have to be "more than" or "less than" NT's to be more than the critical amount needed for survival.

More aspects than reproductive percentage come into play here too - for example, if the theory that autism is passed on via a "dominant" inheritance pattern is proved true, this could account for a lower reproductive rate being needed to survive.

symbiotic_butterfly Wrote:
While I love the "disorder-or-evolution" debate (having always personally believed that autism is not necessarily a disease), all this focus on "do autistics breed enough for it to be evolutionary?" talk is overlooking the likelihood of emotional inducement.  In the reading I've done, I haven't gotten the impression of strong evidence of heredity--why do so many supposedly "normal" parents have autistic children (even allowing for the likelihood of un-diagnosis in earlier generations coupled with this generation's tendency to over-diagnose, doctors generally are still at a loss to pinpoint any definite cause)?


While I like your idea, I can't bring myself to believe it, as Autism has other traits than just thought patterns - for instance, sensory issues and motor skill issues are common, and neither of these has much to do with "logical intergrity".

Also, as Autism is apparent from a very young age, this also leads me to believe that it is not due to logical vs emotional thought patterns.

As far as "normal" parents having autistic children, I tend to think that once the genetics of Autism are determined, it will be seen to have a much wider set of behaviours than is currently considered to be on the spectrum. Many researchers have also introduced the idea of "autistic inhibitory genes" that could allow someone to be a carrier with being Autistic themselves. Personally I tend to think these don't exist, but I thought I'd throw it out there...

The main reason that I believe in genetic Autism is that both myself and my partner can trace the "Autism gene" back through 3 generations of family (my grandfather, my mother, and myself), which would imply that it's a direct inheritance gene. I'd be curious to find out if others can do the same...

Batman55 Wrote:

EvilZakkie Wrote:
As far as "normal" parents having autistic children, I tend to think that once the genetics of Autism are determined, it will be seen to have a much wider set of behaviours than is currently considered to be on the spectrum. Many researchers have also introduced the idea of "autistic inhibitory genes" that could allow someone to be a carrier without being Autistic themselves. Personally I tend to think these don't exist, but I thought I'd throw it out there...


What reason would you think this manifestation couldn't occur?

I've heard plenty of people on AFF--often parents of autistic kids--call themselves "NT with AS traits."  In other words, someone who primarily exhibits NT behavior, but has a couple of tendencies in the AS direction.  These same people would say they are far from the diagnosable range.

I know this is only an anecdotal observation, but I tend to think a person can be a carrier for autism genes, without being affected or only *slightly* affected.  Do you agree/disagree?


I personally disagree, only because I think that the autistic geneset covers a much wider set of behaviours than is currently promoted. For example, I tend to think that "NT with AS traits" people probably have the autistic gene or genes, and it just effects them in a different way than to others.

I think the level of "affectedness" probably has more to do with how quickly and how well the person develops coping mechanisms - not that I'm saying that functioning level is the persons fault, but that it has many factors that are more complicated than just genetic makeup.

Batman55 Wrote:
How quickly a person develops coping mechanisms...  could it be assumed you are implying a higher IQ score would mean the person learns coping mechanisms earlier in life?

Doesn't really make sense to see how so many Aspies are "very obviously affected" but also have an IQ in the 130+ range.


I actually don't think an IQ score says much about what a person is capable of. It's a measure of one very narrow trait - the ability to solve theoretical logic puzzles.

Also, I don't think that developing coping mechanisms quickly necessarily has to do with your innate abilities - it could be circumstantial, it could be because the person isn't bothered by health problems or other issues, it could be based on how interested the person is in socialising as a child, or it could be entirely random.

Batman55 Wrote:
I'm still not sure that someone who is an NT with AS traits (as said before, just a "couple" tendencies) could have the same specific genes as someone affected by Kanner's autism.  And that the difference between the two people would be coping mechanisms learned early in life.  I'm not so sure about it.


That's fair enough - after all, there's no actual genetic explanation yet, so we're all just guessing, really...

Batman55 Wrote:
I think another user here postulated that there is a mutant sensory gene (S), and a normal sensory gene (N.)  Thus Asperger's represents the in-between state of autism (SN), Kanner's/LFA has two copies of the mutant gene (SS.)  While of course not proven, I'm leaning more toward genetics on this issue.


Not so sure about this one, just because if there's only one parent on the spectrum, their child can still be Kanner/low functioning - which wouldn't be possible if one of the parents was (NN).

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