Savin-Williams and colleague Gerulf Riegar turned their eyes onto the students of the university, recruiting 325 gay, straight and bisexual men and women for the test. ‘And the opposite with gay men, their eyes are dilating to men.’ Savin-Williams said: ‘So if a man says he’s straight, his eyes are dilating towards women. When people look at erotic images and become aroused, their pupils open up in an unconscious reaction that could be used to study orientation and arousal.Īccording to study researcher Ritch Salvin-Williams, a development psychologist at Cornell University in New York, it is the first large-scale experiment of this kind. A new study has claimed to have found a way to tell whether someone is straight, gay or bisexual.Īccording to Live Science, scientists believe pupil dilation is an accurate way of discovering a person’s sexual orientation.
