How Transsexualism occurs?
Here is how;
The human brain and mind comprised of various functions which are semi-independent.
There are the independent function for the hunger, fight, flight, sex, security drives; the various emotions and sub-emotional impulses, the reasoning faculty, the male set of functions, the female set of functions, etc.
There is even the “thrusting” impulse and neural circuit for the male and the “open legs” [lordosis] impulse in the females. This is where one will see some perverts thrusting into the air when their impulse control on this function is weaken.
There are two main genders within the human species, i.e. the male and female sex.
In the majority of cases, all the various semi-independent modular functions within the blue print of each sex must be developed and connected correctly on a neural basis. Thus for example to be male, all the functions that is supposed to be male-in-general must be developed and neurally connected correctly. The same must be done for a female in general.
One fact of nature is the inevitable quality of variations due to various reasons. Thus things do not always happen in accordance to what is supposed to be in the supposed blueprint [not by god but as evolved].
Take for example Synaethesia.
en.wikipedia.org/wiki/Synesthesia
According to the blueprint, within humans, whenever a stimuli of various color wavelengths hit the retina, it should be process by the neural connectivity the sense organs of color. The result is the human perceive the respective colors within his conscious awareness.
In the case of Synesthesia, when a stimuli of various color wavelengths hit the retina, the impules are directed to the neural circuit of other sense organs instead of the color sense organ. In some case the color impulse is directed to the taste circuit, therefore when a color Synestheist see the color blue, what actually result is s/he hear music instead. Others may actually suddenly taste sweetness, smell certain scents, etc.
What happened in the case of synesthesia is the neural wires are crossed and ‘wrongly’ connected within the sense faculty in contrast to those of the majority.
Synesthesia is just one example of wrong connectivity, there are many others cases of such extreme variations from the majority.
This prove that wrong connections in term of neural connectivity of the various intended modular function against the intended blueprint do happen within human beings.
If wrong connectivity within the sensual modular functions and others exist, then it is possible such extreme variations to happen within human sexuality’s semi-independent modular functions.
In the case of transexuality, there is a crossing of neural connection between the mental modular functions of the different gender. A person with the set of male physical attributes could be connected with the set of female’s mental modular functions [sexuality and other attributes] and vice versa for the female.
Note DNA wise all human embryos has the POTENTIAL to be either male or female. Whether the child become male or female depends on how the degrees of male or female set of physical and mental modular function are connected and activated. Because the functions are modular, thus it is very possible for the male physical set to be connected with the female mental set.
So Transsexualism occurs when the semi independent modular functions of the physical attributes are cross-connected with the set of the opposite sex’s mental modular functions [comprising various traits and sexuality].
For example during fetal development a fetus is activated with male physical attributes but within the brain the female set of the female mental modular functions [comprising various traits and sexuality] are connected and strongly activated. Thus we have a mental female inside a physically male body.
Note in the case of reptiles, crocodile for example, the average temperature during the incubation period will determine the majority of the sex of the young crocs.
Temperature-dependent_sex_determination:
en.wikipedia.org/wiki/Temperatu … ermination
Btw, we cannot say such extreme variations [minorities] from the majority are negative in any way. In nature, variations from the majority [the minority] has a critical role within its species and all living things.
Within nature there are the minority of risk takers whose brains are connected in extreme variation from the majority. The extreme risk takers will take all sort of risks without much fear for his life, .e.g. the many explorers who had died prematurely but had provided the paths for the expansion of human population to occupy new frontiers. There are the others who are simply driven and compelled to take great risks, e.g. risky sports, like parachuting, mountain climbing for fun, etc., and die [imo unnecessarily].