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Cara Santa Maria

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WATCH: Is Human Sexuality Innate?

Posted: 11/02/11 10:25 PM ET


First and foremost, I want to thank you all for your comments and questions left here on the blog and via Facebook and Twitter following yesterday's post, "Let's Talk About Sex." Many of you brought up valid points that I am quite interested in discussing further. Today, I thought it would be a good idea to focus on the question of whether or not sexuality is innate.

In order to have a reasonable discussion, I think we all need to agree on a good operational definition of what sexuality and innate really mean. Mosby's Medical Dictionary defines sexuality as "the sum of physical, functional, and psychologic attributes that are expressed by one's gender identity and sexual behavior, whether or not related to the sex organs or procreation." Something that is innate is, of course, possessed at birth, inborn, inherent, congenital, and hereditary. The question at hand, then, is sexuality innate? is really a nature vs. nurture discussion of whether or not sexual orientation, sexual attitudes, sexual proclivities, etc. have a strong biological, physiological, and genetic component and/or whether the environment and personal experience contribute to shaping these things.

As a brief aside, I think it's important to mention that in old medical and psychology textbooks (published prior to about 1970) sexuality was rarely discussed. When it was mentioned, the language was very man-centric. At that time, male pronouns referred to both genders. Mankind meant humankind. Men meant people. Although this was arguably just a grammatical convention of the time, it was reflected by the fact that female attitudes and sexual responses were basically left out of the conversation. The same was true for gay, lesbian, bisexual and transgender attitudes. When discussed, they were viewed as a dysfunction or perversion if discussed at all.

Conventional wisdom in the old-school psychological sciences was that homosexuality was caused by nurture. Overbearing mothers and distant fathers were thought to induce homosexual tendencies in children, according to early psychoanalytic theory. Today, this is a laughable assumption, rooted firmly in nothing. No published studies support this claim. In fact, recent studies are revealing that genes, environment, brain structure, and hormones all seem to have a mixed role in sexual orientation and preferences. We know that sexuality has a strong physiological component, and we can study this through twin studies, investigation of genetic markers, and exploration of sexual orientation and behavior in nature (animals in the wild or captivity).

To end today's discussion, I want to draw everyone's attention to a comment left by HuffPost community member Tracy Fortune (see image below).

2011-11-03-Screenshot20111102at11.24.56AM.png

I hope this comment inspires more of you to join in the conversation. Tomorrow, lets continue the nature-nurture discussion about human sexuality by taking at look at some recent evidence-based conclusions.

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08:41 PM on 11/09/2011
We could argue about variables all day. But, in its simplistic form, as far as the male mind is concerned, it is a matter of: "I think, therefore I shag"
06:12 AM on 11/09/2011
It has been my long held belief, many-a-time argued belief, that sexuality is compounded of so many factors that it will be nigh on impossible to point to just one. As a lesbian with a vast collection of friends, both traditionally educated and those educated simply from life experiences, I have found myself debating this exact topic with them on many separate occasions. You know what we concluded? Yes, it's nature AND nurture.
I believe I'm a nature lesbian - I have always been attracted to women. I tried to convince myself I could be in a happy and healthy sexual relationship with a man, and I just can't. The thought, and action of being with a man sexually leaves me feeling uncomfortable and slightly nauseated.
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racetoinfinity
racetoeternity
07:18 PM on 11/07/2011
Yes, and I ran across a recent article (which I can't find now) that reported the result of some new findings from geneticists in Northern Europe who concluded that genes are most likely the cause of sexual orientation; they don't think there is just one, but a cluster; they are narrowing in on which these might be, but haven't isolated them as yet.
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John McIntosh
Former U.S. Navy, Current EFL teacher
09:03 AM on 11/07/2011
If this point has been raised before in this thread, please forgive me for not having read the whole thread. This is all very interesting, and I suppose we have to get through this process of finding the "cause" of homosexuality before we can get to the place of not really giving dingo's kidney about the cause. In the meantime, I for one find the whole question to be sort of repugnant. Why is it so important to find the reason for a completely benign phenomenon? To ask seems to beg to question that there's something wrong with it. In my view, even if it were a completely volitional choice (a sort of absurd idea), it would be a VALID choice. The entire dynamic driving the need to ask this question comes from centuries of religiously mandated hatred and bigotry. Come on, people, we've advanced enough to realize that lightning isn't Zeus's judgment, that germs cause disease; and I guess some day, when we've hacked through all of these questions about what causes gays, this question will seem absurd. I've lived to see a lot of things happen that I thought I would not, as far as gay rights go. I doubt I'll live to see this question die, but I do so hope it some day does.
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01:25 PM on 11/07/2011
You question right slap-bang in the middle of your comment nails it for me, so I am just going to cite you here in big fat quotation marks in the hope that a few more people, including those with very short attention spans, will read it:

"Why is it so important to find the reason for a completely benign phenomenon­?"
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01:38 PM on 11/07/2011
Adds (in light of your comment): aren't we asking the wrong question here?

Shouldn't the main focus be on the reasons why some people feel such a strong objection to any sexual orientation that differs from their own?

Nature or nurture? ;-)
01:22 AM on 11/05/2011
Sexuality is in part environmental. And that doesnt mean it's a choice. Think of how the changing ideals of beauty affect who people are attracted to. See, no choice, but still in part environmental. Cant we just accept that its both innate and environmental?
11:05 PM on 11/05/2011
The definition of 'sexuality' Cara copied from a Medical Dictionary is much too wide. Under that definition, of course ther is a lot that is nature, and a lot that it nurture. So that doesn't help us very much.

Now if we tried to narrow down her chosen "operational definition", then to claim that each of the possible narrowings is 'nature' or 'nurture' would be a more interesting proposition, but it could still be too controversial for rational discussion in this or any other Internet forum.
10:44 AM on 11/06/2011
Well, provide one then.
06:36 PM on 11/04/2011
Are we going to talk about bisexuality at some point? Does that get its own video?
11:12 PM on 11/05/2011
After you saw what happened with this one are you really sure you want that?
08:36 AM on 11/04/2011
Of course sexuality is innate. It is the strongest of our natural instincts.Its part of us from the time of conception. It molds our lives on a daily basis.
11:05 PM on 11/05/2011
No, there is no 'of course' there. Especially not with the wide "operational definition" Cara chose, which includes some things that are clearly nature, and others that are clearly nurture.

As for "strongest natural instinct", try going without food for three days and see if you still believe that.
02:23 AM on 11/04/2011
Hello,

Some swingers need their climax to satify and fulfill a chapter in the book of revelations. I wonder if this can be included in the total entertainment reality check.
Robben
08:51 PM on 11/03/2011
Having had an overbearing mother and distant father and having turned out definitely heterosexual -if a rather nerdy one- I can feel confident in the strong genetic predisposition, at birth, toward one sexual orientation or the other. In the same way, some are more sensitive to sweet or sour flavors on a biological basis. However, I similarly believe that both subconscious and conscious influences of nurture or exposure can mold preferences just as they do with human flavor preferences.
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jf12
Occupying myself
11:19 PM on 11/03/2011
A good question to ask is how our sexuality influences others'. Most nerd males are strongly heterosexual but not strongly attractive to females. Many gay males are much more attractive to most females, not just f-g h-gs, than most heterosexual males. Conversely, most lesbians are about as attractive to most males as other females.
07:20 PM on 11/03/2011
After reading an article where Herman Cain was taken to task by Joy Behar of The View for saying "show me the science that being gay is not a choice," I wrote the following response: "This is another example of liberals and conservatives talking past each other and not with each other. For conservative Christians and conservatives of other faiths, how you were made and chemically/hormonally influenced in your mother's womb and influenced by your environment DOES NOT MATTER. What matters to them is what you CHOOSE to be REGARDLESS of how you were made. So, it is BOTH that we were born and influenced to be a certain way AND we choose whether to live accordingly or not. The debate should really be about should we choose to be radically different from how we were born?" So, we cannot choose to BE gay, but we can choose whether or not we will accept who we are and act accordingly or not.
08:55 PM on 11/03/2011
Well, it should matter to them. If it really does not (which I doubt is as widespread as you seem to think), then that is a major fault in their thinking. It would actually subvert all of Christian moraility to claim that God commands us to do anything that is against our nature. On the contrary: if they understood their own Christian morality properly in the first place, they would realize that all of God's commands are not only consistent with our nature, but for its best development.

Unfortunately, this 'meme' in Christian ethics has been obscured by a new misunderstanding of Redemption and Atonement, which APPEARS to render morality unnecessary. But it has only been obscured, not obliterated.

So now returning to the unobscured principle, it is impossible that God commands any man to be an angel, and not a man. Likewise, if it were true that people were "born gay" and that 'by nature', it would then be impossible to claim that God commanded against "being gay".

But the careful reader will have noticed that there are several 'outs' here. One could claim that the commandment is against the action, not the inclination, in which case, there is nothing wrong with being gay as long as you don't act on it. But it is not just the gays who find this option unattractive.

Another 'out' is to claim (predictably), that it is NOT by nature. See the APA statement a few posts below.
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jf12
Occupying myself
09:49 PM on 11/03/2011
We are commanded to become new creatures.
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WheelsOnFire
Fiercely Independent
11:25 AM on 11/04/2011
So, you're saying that a straight person could choose to refuse to act as they believe their god made them -- they could deny their heterosexuality and be celibste for life -- contrary to the way they were made.

Sure, and they could refuse to eat or breathe, too.
11:08 PM on 11/05/2011
But millions have done exactly that throughout a very long part of human history: choose to remain celibate for life. What did you think monks did? The bad behavior of Miroku in Inuyasha is NOT standard for monks around the world: only in Japan, where they have forgotten that even Buddhist monasticism calls for celibacy.
04:28 PM on 11/03/2011
60,000 male and 30,000 female nerve endings,a large dose of hormones, a dash of physical attraction,and some soft grass makes it very innate.
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Demitasse
Ars longa, vita brevis
03:33 PM on 11/03/2011
American Psychiatric Association:

There is no consensus among scientists about the exact reasons that an individual develops a heterosexual, bisexual, gay, or lesbian orientation. Although much research has examined the possible genetic, hormonal, developmental, social, and cultural influences on sexual orientation, no findings have emerged that permit scientists to conclude that sexual orientation is determined by any particular factor or factors. Many think that nature and nurture both play complex roles; most people experience little or no sense of choice about their sexual orientation.
http://www.apa.org/helpcenter/sexual-orientation.aspx
08:36 PM on 11/03/2011
I did not expect such an accurate characterization of the state of knowledge from the APA. I have seen too many previous statements from the APA that came to a different conclusion, namely, that the balance of evidence was on the side of it being 'inborn', but not genetic.

But there is one very interesting aspect of this statement that deserves more attention: the claim that "most people experience little or no sense of choice about their sexual orientatio­n". This too sounds accurate, but easily misunderstood. It does NOT mean that those people had no choice about it. It only means they were not aware of it.

The two are NOT the same. Amazingly, people can be unaware of the operation of their own will, since understanding it well demands a degree and level of introspection that very few even attempt.
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Nick Hatch
I'm So Meta Even This Acronym
09:57 PM on 11/03/2011
Yeah of course most people don't pick apart their sexuality because like most choices we make, it is an impulse, a dopaminergic response to stimuli. It's the same driver that causes us to grab another cigarette, eat another piece of chocolate, drink another sweet sugary drink, and want to have sex with this or that person in this or that manner. If that which comes to us unconsciously can be thought of as natural then surely most sex drives and inclinations are natural.
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jstrate
02:28 PM on 11/03/2011
Arguing about whether genes or the environment are more important, as a professor of mine once said, is a bit like arguing whether the area of a rectangle owes more to its width or to its height. Not an expert, I thought that the "feminized brain" due to the influence (or lack thereof) of prenatal androgens was the most widely accepted hypothesis regarding male homosexuality. The sisters of male homosexuals may have higher fertility, a possible solution to the question of why the trait evolved by natural selection. Then there's the issue of bisexuality--Are bisexuals "sneaky" males who obtain easier access to women because of their facility in connecting with women emotionally and because heterosexual males figure its o.k. if these "gays" hang around their girlfriends and wives? Homosexual behaviors are quite widespread in nature. It's not always that easy to figure out what nature's up to.
01:46 PM on 11/03/2011
Does anyone have links to studies that suggest correlation/causal links between sexuality and hormones/brain size/etc?
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DNAtsol
You are more than the sum of what you consume.
02:02 PM on 11/03/2011
Here is one:
http://www.pnas.org/content/89/15/7199.short
02:24 PM on 11/03/2011
But see also http://archpsyc.ama-assn.org/cgi/content/abstract/50/3/228, which suggest that your PNAS article went too far. They provide better evidence even in just the abstract, too.
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HUFFPOST COMMUNITY MODERATOR
ConfuciusSay-
Aglets: their purpose is sinister.
08:57 PM on 11/03/2011
Kluver-Bucy syndrome causes changes to sexual behaviour, and is due to amygdala lesions.

Ropinirole, used to treat Parkinson's disease, has a dose dependent action that causes hypersexuality, overeating, and gambling in some people.

This indicates a strong biochemical basis involving dopamine, with brain localization to specific structures.
01:29 PM on 11/03/2011
To answer the headline question, yes. It's an easilly proven theory that can be observed in all other mammals. That we have higher reasoning skills is secondary.
08:40 PM on 11/03/2011
But as with many quick and easy answers, yours is just plain wrong. Remember: wrong answers are always easy.

One of many reasons why your answer is wrong is that the question is poorly put: 'sexuality' covers too many different things, even including 'gender', which at least as the APA defines it is certainly learned behavior. Another reason is that there can be no scientific basis for the claim that reasoning ability is 'secondary'. There are other reasons, but I won't go into them just yet.
08:26 PM on 11/08/2011
What about cases of children being raised in the opposite gender and not conforming to their assigned gender?