London: Men instinctively adopt a sing-song tone when talking to a woman they find attractive, a new study has found. The study led by the University of Stirling in UK which looked at the vocal ranges of men and women in courtship scenarios found humans make subtle changes in their voices when they speak to people they find attractive.

The research led by Stirling's Juan David Leongomez - also found that these subtle voice modulations also make the speaker seem more attractive to the person at whom the speaking is directed. The research team studied a sample of 110 heterosexual individuals, who were either native English or Czech speakers.