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originally posted by: Asynchrony
a reply to: tothetenthpower
Although I don't want to reply to this thread because it may "quantum-physicslee" somehow attract more of that "lifestyle-choice" of people towards me but I must say that yes, it is a choice that depends upon one single action: rubbing thy prostate gland with your finger or other object.
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originally posted by: olaru12
Wait....what?
So what happens when you rub your prostate? And what kind of object are we talking about here.
Exactly what kind of "Science believer" are you....Inquiring minds want to know!
originally posted by: Astrocyte
a reply to: tothetenthpower
These different responses to life, which we often take to be "hardwired", ARE NOT genetically encoded, at all: being gay is NOT genetic, and if any heritable factors seem involved, as family studies indicate, they must be involved at the 'somatic' level of the cell, that is, at the epigenetic level (in Chromatin and RNA structure), and not in the DNA structure itself.
Lastly, at the brain level, an area in the anterior hypothalamus - interstitial nuclei 3 - shows dimorphic differences in size between heterosexual men and women, with gay men closer to the smaller women's INAH3, and gay women closer to the larger mens.
Just as with other experiments in neuroplasticity, such as the study on cab drivers and a part of their hippocampus, as well as studies on soldiers with PTSD, when the mental situation changes, so does the physical neurobiology. This is a basic staple of neuroscience. The only reason you don't hear neuropsychologists discussing this - the malleability of sexuality - is simple: political correctness. And, of course, they do not want to help the homophobe/evangelicals in their quest to force people to abide by dogmatic religious beliefs.
My understanding is that DNA will give us the base programming which can then be executed with various flags, being the epigenetic markers. Is this correct? If so, wouldn't this degree of flexibility in the form of parameters still be limited to the base code which is being executed? Guess what I'm getting at is that it takes everything, including the DNA, for this to come into existence, and you can't honestly choose one over the other when dealing with the complexity that is human behavior. Is my understanding incorrect?
It seems you'd like to make a case here that the changes in structure follow the choice in function, they no doubt feed into each other, but isn't the most intellectually honest approach to conclude we don't have all the causative flows figured out yet?
originally posted by: Astrocyte
a reply to: pl3bscheese
I don't think so. I think it is more plausible to extrapolate from examples in which we know, without any shadow of a doubt, that neuroplasticity follows mental change.
Neuropsychotherapy, Neuropsychoanalysis, and other fields which integrate the change process of psychotherapy with neurological imaging studies, has given us pretty much no reason to doubt that deep mental change (usually of the right hemisphere, which is more deeply connected with subcortical and brainstem areas i.e areas which mediate sexual feelings) results in neurobiological changes in the relevant brain areas.
There's a very, very rich literature in this area: this being my particular area of academic focus (at the UofT), so I feel, for me anyways, it is a very sound hypothesis that probably wont ever get explored until things simmer down around the politics of homosexuality.
Well, I'd like to challenge this reasoning as being representative of the whole truth. Neuroplasticity does follow mental change. This doesn't meant this is the only way in which neuroplasticity can arise. Circumstance can happen to an individual outside of their psychical control, which facilitates the cascade of effects which lead to neuroplasticity.
Taking this towards the examples you've choose, we can conclude to have seen results only from those who did not break. Those who did not have limitations to their potential for neuroplasticity in the ways which were required for them to adequately perform their task for extended periods of time. What of the would-be cabbies who quit due to not being able to adapt?
Ah, well from an outside observer of the academics, it seems pretty easy to conclude that those who focus in on a study, will have bias towards their merits and ways of viewing reality within the current paradigm over other approaches. Nothing wrong with that, but it does seem universal.