What If You Like Someone Because That’s Just What Your Brain Tells You To Do?
It’s a Sunday. And what better way to celebrate a Sunday than to bring up topics that would make a priest blush? How about a good ol’ dash of technology and science in human sexuality!
Nature or nurture? Frankly, I’m not even going to try to answer that. Hell, I’m not even sure it really makes a difference. Personally, I don’t give a fig. You are who you are. Who cares why?
However, what if it really was nature?
Where could there be such proof?
New Scientist has an interesting article by Ivanka Savic and her colleague Per Lindström (conducted the study at the Karolinska Institute in Stockholm, Sweden) on how scans of brains show that being gay or straight is a biologically fixed trait from birth. That it is not something that “develops”, and thus is not something that can be “cured”.
There have been previous studies that showed things like this, but were typically based on sexually driven cues. They were designed to show responses to sexual stimuli. And in that, they didn’t really prove anything more than the sexual preferences of the participants. Where as the difference with this study is that it does not scan for anything sexual in the brain. Instead of studying sexual responses, it uses PET scans to measure blood flow to the amygdala, part of the brain that governs fear and aggression.
Yes, that’s right, it traces the effects of how our brains handle fear. This study examines brain parameters likely to have been fixed at the very point of birth. It examines something we’ve been wired for all along, not something that we could have developed into.

With heterosexual men and women (HeM and HeW respectively) on the left showing their typical fear responses in the left amygdala, we can see clearly that the results are near opposite between the hetero sexes. In straight men their blood flow triggers the sensorimotor cortex and the striatum, which are responsible for “fight or flight” active response to a situation. In straight women on the other hand, the blood flow goes into regions of the brain that manifest fear as intense anxiety, a more internalized and less reactive response.
What is fascinating is that the homosexual woman (HoW) responds identically to fear as the heterosexual man (HeM). And the homosexual man (HoM) responds identically to that of a heterosexual woman (HeW). It’s a clear-cut case of a homosexual brain responding to a non-sexual stimulus in the opposite manner of a heterosexual, or in other words in the same manner as their sexual gender preference.
Besides the study making this wonderful observation, it also gives rise to actual proof of other observations-turned-stereotypes.
Men do take situations head on.
Women worry.
Gay men worry. And thusly are more likely to be prone to acts of drama and even suicide.
Where as gay women are more likely to just brute their way through.
It really is all right there, in the scans of brains.
And so it would seem, our sexual preferences are perhaps not so much a matter of nurture, but simply who we are from birth. We were wired a certain way, and there’s just no fixing that.
