Straight or curved Your eyes will not lie
Is there no other way to understand a person's sexual orientation The answer is yes. A paper published in the Public Library of Science in August 2012 shows that maybe you do not want to tell someone about your orientation, but your pupil may have betrayed you.
The study collected 165 men and 160 female subjects. At the beginning of the survey, each participant watched the 1-minute landscape as a control and watched a 30-second male / female masturbation film as a visual stimulus. After that, repeat the whole process, but this time from the male and female visual stimulation at the same time appear on the screen.
After two visits, each subject was asked to score 7 points (1-7 points, of which 1 was no interest, 7 divided into very interested) for the small movie characters on their Attract scoring.
During the process of watching the film, the degree of pupil enlargement of these subjects was recorded quietly by the instrument. At the end of the survey, each subject made a self-assessment of his sexual orientation (scoring for 7, 0 for complete heterosexuality, 6 for homosexuality, and bisexual in the middle).
Do all women have a tendency to become a lesbian? Although the results seem to be the case, but the study group that this is only appearance, its behind has a certain evolutionary significance.
Women in the same sex will be "sex" this discovery is not a case, before some of the degree of sexual excitement based on the study also gives a similar result.
Ruth Baumister, a professor at the University of the West, made an interesting point of view. He argues that human sexuality is more arbitrary when the rituals are unhappy.
In which men are dominated by the superiority of power, and women in order to avoid the reluctant sex life when the organ is damaged, evolved as long as the stimulation of sexual stimulation (whether from men and women) will be in the vaginal secretion of lubricating fluid Protection mechanism, perhaps the experimental results in the study is derived from this kind of relics to the present mechanism.
The purpose of this study from Cornell University in the United States is clearly not to satisfy my curiosity. We know that in anthropological research, subjects are required to show sexual orientation. In some studies, subjects can indicate their sexual orientation.
However, the results of the questionnaire may be biased to indicate the extent of homosexuality; in other studies, the degree of excitability of the subject after visual stimulation was used as a distinction between homosexual and heterosexual The standard.
However, this test varies from person to person, and men and women are different, the credibility of the results will be greatly reduced. Therefore, this study also came into being. Perhaps in the near future, we can see in more studies the use of pupil deterministic examples.
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