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Oct. 7th, 2003 07:35 amfrom
xochizlan
Sexual orientation 'hard-wired' before birth - startling new evidence revealed in the blink of an eye
[Poll #188762]
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Sexual orientation 'hard-wired' before birth - startling new evidence revealed in the blink of an eye
The results of a new study by a team of British psychologists released today provide powerful new evidence that sexual orientation is 'hard-wired' in the human brain before birth.
Dr Qazi Rahman of the University of East London (UEL) has been working with Dr Veena Kumari and Dr Glenn Wilson of the Institute of Psychiatry to investigate sex differences in the startle response - our eye-blink reaction to sudden loud noises.
The team discovered significant differences in the response between male and female, and heterosexual and homosexual subjects. Because the startle response is known to be involuntary rather than learned, this strongly indicates that sexual orientation is largely determined before birth.
[Poll #188762]