[stripes1776]

"Testosterone is a hormone that males produce in far greater quantity than females. It begins production while the individual is still in the womb, and effects brain development."

Obviously-- the word he wants here is "affects". ;)

Yes, you are right. It seems unlikely that testosterone alone is responsible for brain development in general. On the other hand, the person doing this research is saying that testosterone effects a particular type of behaviour, not simply affecting it but producing it. As the article says, "Criminal and high-level intellectual activity have the same underlying motor according to Kanazawa: testosterone."

[CHARLITE]

"It seems unlikely that testosterone alone is responsible for brain development in general. On the other hand, the person doing this research is saying that testosterone effects a particular type of behaviour, not simply affecting it but producing it. As the article says, "Criminal and high-level intellectual activity have the same underlying motor according to Kanazawa: testosterone."

I posted the article, because I found it interesting, but personally, I don't know how any "researcher" could ever truly prove a theory like this. One would have to exhume Bach, Handel, Einstein, Galileo, Isaac Newton, Racmaninoff etc...........to see if their testosterone levels were as high as Jeffrey Daumer's, Ted Bundy's or "The Birdman of Alcatraz" et al.

[walden]

Yes, I know that "effect" can also be used as a verb. ;)