BEIJING, Aug 14: When Kelly Sotherton says she is going to win heptathlon gold at the Beijing Olympics, the Briton has scientific proof that she absolutely believes it.

The 31-year-old, a bronze medallist in Athens four years ago, recently underwent a polygraph test conducted by Doctor Hilary Witchel, a leading psycho-physiologist from England's Bristol University.

After a series of control questions, Sotherton was asked if she would win the Olympic title and her physiological responses indicated that her answer, “Yes, I will win gold in Beijing”, was genuine.—Reuters