Homosexuality and the R-Complex

[Genecks]

I'm referring to the r-complex in relation to the triune brain hypothesis.

 

Does anyone think it would be a fair argument to say that homosexuals have more brain excitation in their r-complex on average than heterosexuals on average?

 

I was taking an evolutionary look at this by thinking about how some lizards undergo asexual reproduction.

[Daecon]

But how would that compare to heterosexuals of the opposite gender?