Author Topic: More evidence that sexuality is biological  (Read 1173 times)

Offline Chairboy

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More evidence that sexuality is biological
« on: May 10, 2005, 10:23:26 PM »
http://news.nationalgeographic.com/news/2005/05/0510_050510_gayscent.html
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A new study shows that gay men respond differently from straight men when exposed to a suspected sexual stimulus found in male sweat.

When homosexual men smelled the odor of male sweat—more specifically, a chemical in the male hormone testosterone—their brains responded similarly to those of women.


The findings suggest that brain activity and sexual orientation are linked. It also supports an opinion held by most scientists, that people are born—not bred—gay.

"This is one more line of evidence that there's a biological substring for sexual orientation," said Dean Hamer, a geneticist at the National Institutes of Health in Bethesda, Maryland.
Very interesting stuff!  I suspect this clashes with what many here believe.  After everyone gets the gay jokes out of their system, I'd be curious to see what you guys think in the face of this study.
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Offline Lizking

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More evidence that sexuality is biological
« Reply #1 on: May 10, 2005, 10:28:46 PM »
Do women want to **** men in the ass?

Offline Chairboy

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More evidence that sexuality is biological
« Reply #2 on: May 10, 2005, 10:37:44 PM »
I guess that really depends on the woman in question.
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Offline Sandman

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More evidence that sexuality is biological
« Reply #3 on: May 10, 2005, 11:23:47 PM »
Let's see...

A: Charlize Theron
B: Another man's hairy ass

Either way, we men don't get to decide. The choice is already made. A!

Of course, there are the exceptions. From what I've read, Freddy Mercury would pretty much **** anything, and he died for it.

Lesbians baffle me, especially the butch couples. A woman that wishes she was a man with another woman that feels the same. WTF? On the other hand, if one is butch, I still scratch my head. I assume the butch one feels much the same way towards women as I do, but I have to wonder what motivates the other (normal?) one.
sand

Offline Nilsen

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More evidence that sexuality is biological
« Reply #4 on: May 11, 2005, 01:15:52 AM »
Quote
Originally posted by Sandman
Let's see...

A: Charlize Theron
B: Another man's hairy ass

Either way, we men don't get to decide. The choice is already made. A!

Of course, there are the exceptions. From what I've read, Freddy Mercury would pretty much **** anything, and he died for it.

Lesbians baffle me, especially the butch couples. A woman that wishes she was a man with another woman that feels the same. WTF? On the other hand, if one is butch, I still scratch my head. I assume the butch one feels much the same way towards women as I do, but I have to wonder what motivates the other (normal?) one.


Same with the gay guys i think. they try hard to be as feminine as possible and are attracted to other feminine "guys".. that makes em both lesbian...kinda

Offline bunch

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More evidence that sexuality is biological
« Reply #5 on: May 11, 2005, 01:51:59 AM »
which WW2 aces were gay?

Offline Simaril

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Re: More evidence that sexuality is biological
« Reply #6 on: May 11, 2005, 07:02:50 AM »
Quote
Originally posted by Chairboy
http://news.nationalgeographic.com/news/2005/05/0510_050510_gayscent.html
Very interesting stuff!  I suspect this clashes with what many here believe.  After everyone gets the gay jokes out of their system, I'd be curious to see what you guys think in the face of this study.




OK, first off, this study (and most other "studies" on politically active questions) suffers from issue blindness -- the expectation that what you already believe will be proven. That results in drawing conclusions that are not supported logically, or sometimes even by the data.


What do I mean? Well, this study proves only that humans will respond sexually to stimuli associated with previous sexual pleasure. These people are already gay The study only proves an ASSOCIATION between the stimuli and the response, NOT CAUSATION. It's essentially an expensive and politically charged repeat of Pavlov's original studies on stimuli/response patterns in dogs. To draw the conclusions they do, they would have to do the studies on PEOPLE WHO ARE NOT YET GAY, and then watch to see their sexual orientaion play out.


ANother example of this application of PC conclusions to scientific data BY THE RESEARCHERS THEMSELVES is a study from a few years ago that measured the brain tissue volume in areas associated with sexuality, in men who had died of aids. The researchers chose to ignore the well known fact that HIV infects the brain. Therefore, it was unclear whether the changes seen were caused by the HIV infection, or by the victim's previous sexuality.

The media is pretty crappy at presenting science to the public, which explains why studies often seem to contradict themselves -- the media generally doesnt understand science. But, researchers themselves can fall prey to their own bias, and when the bias is generally held by the world at large the researcher's failings can be accepted at face value.

One last point: even IF eventually a pre-existing tendency to homosexuality can be demonstrated, it would still NOT prove that sexuality is predetermined. To choose a stereotyped example: the fact that I have Irish blood may (supposedly) leave me more likely to have an explosive temper, but it DOES NOT mean that I'm allowed to beat my wife because I'm mad. No one has yet ever demostrated a biologic factor that makes homosexuality more likely, but if there was such a factor it will never mean that we are controlled by our genes. We have conciousness, we have intellect, we have a choice.
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Offline wrag

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More evidence that sexuality is biological
« Reply #7 on: May 11, 2005, 08:57:54 AM »
Hmmmmmmmmm.........

Thinkin...........

Hormones.

They are present.

Doctors and scientist are STILL figuring out what are hormones.

They still DO NOT fully understand what hormones do or how they do it.

Fairly recently they discovered the hormone within the male's ejaculatory fluid.

Females do NOT create this hormone yet react to it.

Betting eventually they will figure out that there is a hormone in females that males do not create yet react to.

Also betting these hormones have a far greater affect on the human body then is currently understood.

Betting the earlier the contact ( age wise) the greater the affect.

Also betting the male hormone can and does affect other males.  And the undiscovered female hormone can and does affect other females.

Just some thoughts.
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Offline Suave

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More evidence that sexuality is biological
« Reply #8 on: May 11, 2005, 09:23:43 AM »
It's really semantics.

Homosexuality in the most literal sense of the word is activity, therefore a  choice, all sex is, unless you're raped.

Being sexually attracted to the same sex is not a choice.

Maybe it would be better If all people chose sex acts as identity as the gays have done.

I would be eagerly anticipating the women's blowjob pride parade.
« Last Edit: May 11, 2005, 09:26:15 AM by Suave »

Offline Suave

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More evidence that sexuality is biological
« Reply #9 on: May 11, 2005, 09:31:20 AM »
Homosexuality has causes other than just biological. Abnormal sexuality is often a product of developemental issues. That's why some lesbos like pretty chicks, and some lesbos like women that look like men. And Troy MacLure likes fishes.

Offline weaselsan

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More evidence that sexuality is biological
« Reply #10 on: May 11, 2005, 09:37:49 AM »
Quote
Originally posted by Suave
Homosexuality has causes other than just biological. Abnormal sexuality is often a product of developemental issues. That's why some lesbos like pretty chicks, and some lesbos like women that look like men. And Troy MacLure likes fishes.


Can this mean Aces High can have a Sheep Pride Parade?
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« Last Edit: May 11, 2005, 09:40:33 AM by weaselsan »

Offline Siaf__csf

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More evidence that sexuality is biological
« Reply #11 on: May 11, 2005, 09:51:28 AM »
Simaril while what you say is true it doesn't negate the fact that they could prove that the brain reacts to the scents without the knowledge of the carrier.

Previous activity doesn't explain getting stimulated by a certain type of sweat. At least unless the concentration is so heavy that you can literally smell it and associate it with some experience.

Offline Thrawn

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Re: Re: More evidence that sexuality is biological
« Reply #12 on: May 11, 2005, 11:10:02 AM »
Quote
Originally posted by Simaril
OK, first off, this study (and most other "studies" on politically active questions) suffers from issue blindness -- the expectation that what you already believe will be proven.


What an amazing disservice you do to the scientists that produce studies on this topic.  And although it might be true in some cases you can't assume it's true in this one.  Another point is that although it might be a politically hot topic in some places, it's quite possible that it simply isn't in Sweden, but I honestly don't konw..


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That results in drawing conclusions that are not supported logically, or sometimes even by the data.


Luckily this isn't the case in alot of studies which demostrate biology as the probable cause of homosexuality.  And it's also a reason that peer review is such a necessary part of the scientific method.


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To draw the conclusions they do, they would have to do the studies on PEOPLE WHO ARE NOT YET GAY, and then watch to see their sexual orientaion play out.


Do you mean "people who have not had a homosexual experience"?  I say this because it might be possible that people are either hetero or homosexual thier entire lives.


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ANother example of this application of PC conclusions


The scientists certainly didn't reach a PC conclusions, but infact stated the same point you made about causality.

"Hamer cautions that the gay men's different brain activity could be either a cause of their sexual orientation or an effect of it. But, he said, "it certainly seems unlikely that somehow being interested in men would cause the brain to rewire itself in such a dramatic way."

Note the qualifiers.


Quote
to scientific data BY THE RESEARCHERS THEMSELVES is a study from a few years ago that measured the brain tissue volume in areas associated with sexuality, in men who had died of aids. The researchers chose to ignore the well known fact that HIV infects the brain. Therefore, it was unclear whether the changes seen were caused by the HIV infection, or by the victim's previous sexuality.


You are discussing the controversial research done by Simon LeVay, but what you are leaving out is that he was repeating the experiments of Laura S. Allen, and concurrently D.F. Swaab.  That found that also differences in the hypothalamus.

You say that HIV infects the brain, but there is no evidence that it causes areas of the hypothalamus to shrink or grow?

The incidence of homosexuality in maternal, fraternal and non-twin brothers also leads credence to the theory that homosexuality it caused by biology.  As wells as the genenic sequencing experiment done by Hamer.


And although yes, I agree that more research needs to be done in order for it to be conclusively proven that homosexual is caused by biology.  There is a hell of alot more scientific evidence to support that theory than any other.


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But, researchers themselves can fall prey to their own bias, and when the bias is generally held by the world at large the researcher's failings can be accepted at face value.


Indeed, but simply making that statement alone doesn't invalidate the research.  


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One last point: even IF eventually a pre-existing tendency to homosexuality can be demonstrated, it would still NOT prove that sexuality is predetermined.


Actually by definition it does, what it doesn't predetermine is whether or not someone is going to act on that sexuality.


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To choose a stereotyped example: the fact that I have Irish blood may (supposedly) leave me more likely to have an explosive temper, but it DOES NOT mean that I'm allowed to beat my wife because I'm mad.



I don't imagine making this tread a discussion of morality will aid in.  In fact it will probably take it totally of topic.

Offline weaselsan

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More evidence that sexuality is biological
« Reply #13 on: May 11, 2005, 12:51:22 PM »
Me thinks it's caused by wire A going to terminal B
and wire B going to terminal A.

Offline Airhead

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More evidence that sexuality is biological
« Reply #14 on: May 11, 2005, 01:08:12 PM »
Quote
Originally posted by weaselsan
Me thinks it's caused by wire A going to terminal B
and wire B going to terminal A.



Since we can't rewire brains, what do we do?

"No one has yet ever demostrated a biologic factor that makes homosexuality more likely, but if there was such a factor it will never mean that we are controlled by our genes. We have conciousness, we have intellect, we have a choice."

Actually this study just did. Now if you think sexual attraction can be controlled, then I guess you'd be able to perform sexually with a man, huh?

;)