Sexual orientation can be determined by the pupil
Last reviewed: 20.11.2021
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By expanding the pupil, you can clearly define a person's sexual orientation, says Ritch Savin-Williams of the University of Cornell. The study showed that if a person looks at pictures of erotic content and has an arousal, the pupils expand. Accordingly, if this happens when you see the representative of your own sex, then the person is homosexual, writes Live Science.
In fact, the pupils widen slightly in response to any thing that causes interest, including the face of a loved one, and a work of art. Expansion is an indicator that the autonomic nervous system responds.
Earlier such studies were attempted, but they did not succeed. Prior to this, the evaluation was performed according to the visible signs of excitement, suggesting the study of the genitals. Few people wanted to participate in such an experiment, plus, the method could record only a strong response.
An analysis of the dilatation of the pupil is quite an acceptable method. Were recruited 165 men and 160 women. These included heterosexuals, bisexuals and homosexuals. Volunteers watched one-minute videos on which a man, a woman, or just a landscape was masturbating.
A special camera followed the pupils' condition. So, he expanded when a homosexual man saw a video with a man, heterosexual - with a woman, and a bisexual reacted to both. But with women it was all more difficult.
Homosexual women reacted to images of women. But heterosexuals reacted to videos with representatives of both sexes. What exactly the reason for this pattern, scientists can not say.
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