Eyes have it: New way to tell sexual orientation - Times of India

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NEW YORK: Your pupil dilation holds telling indications of your sexual orientation, a new study has claimed.

Researchers from Cornell University used a specialized infrared lens to measure pupillary changes to participants watching erotic videos.

Pupils were highly telling : they widened most to videos of people who participants found attractive, thereby revealing where they were on the sexual spectrum from heterosexual to homosexual.

Previous research explored these mechanisms either by simply asking people about their sexuality, or by using physiological measures such as assessing their genital arousal.

"We wanted to find an alternative measure that would be an automatic indication of sexual orientation, but without being as invasive as previous measures. Pupillary responses are exactly that," Gerulf Rieger, lead author said. "With this new technology we are able to explore sexual orientation of people who would never participate in a study on genital arousal, such as people from traditional cultures," Rieger said in a statement. PTI