Professor Emeritus of Medical Psychology and Pediatrics at Johns Hopkins University
Not Clearly Pro or Con to the question "Is Sexual Orientation Determined at Birth?"
"Genetically pure inbred strains are an ideal of animal husbandry, not of human social and sexual interaction. A heterosexual man or woman does not become heterosexual by preference. There is no option, no plan. Becoming heterosexual is something that happens -- an example of the way things are, like being tall or short, left-handed or right-handed, color-blind or color-seeing. No one, boy or girl, man or woman, prefers to be homosexual instead of heterosexual. The concept of voluntary choice is as much in error here as in its application to handedness, or to native language. Sexual status or orientation, which -- whatever its genesis -- may become assimilated and locked into the brain as monosexually hormonosexual or heterosexual or as bisexually a mixture of both."