Tonight at 9pm on BBC Channel 3 a 21 year old guy says that after having a stroke he woke up to find his sexuality had changed. Before the stroke he was an avid rugby playing hetrosexual but that changed overnight to becoming gay and the loss of all his rugby pals.
If the brain is capable of being modified by rearranging the circuitry where does that point to in future research?
Who knows what happens to our brains during puberty. Isn't that the period when people choose their sexuality. Maybe he was in that malleable stage and could have opted for either route. The jolt to his brain just turned it into a different direction. Bi-sexual brains maybe are just stuck in limbo.