Experimental results show that there is almost no difference between men and women in the reaction in the brain when viewing pornographic images
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Previous studies have suggested that there are differences in the response between men and women when they see content that stimulates libido, such as pornographic images. However, real-time observations of the brain regions of people viewing sexual images revealed that there was little difference in brain response to different biological genders.
Neural characteristic of sexual arousal are not sex dependent | PNAS
https://www.pnas.org/content/early/2019/07/09/1904975116/
Study shows female brain responds to porn the same as male brain
https://medicalxpress.com/news/2019-07-female-brain-porn-male.html
According to Hamid Nouri, head of the Neural Convergence Research Group at the Max Planck Institute and the lead author of the paper, 'There is a difference in neural activity between men and women, and that difference causes sexual stimulation. The hypothesis that 'the cognitive processing of the reaction to is different' has been advocated through research. However, most of the responses to sexual stimulation are investigated based on physiological and psychological changes, and especially the latter is a subjective evaluation, so the gender difference in response can be correctly evaluated in previous studies. Mr. Nuri was wondering if he was doing it.
Therefore, Nuri et al.'S research team showed various images using functional magnetic resonance imaging (fMRI) to 1850 adult men and women with different sexual preferences such as homosexuality, bisexuality, and heterosexuality. I observed the changes in blood flow in the brain that are sometimes seen. By using fMRI, you can check in real time which part of the brain is activated by monitoring the blood flow that carries oxygen. The subject's sexual orientation was judged by the Kinsey scale.
As a result of the experiment, it seems that there was no significant difference between men and women in the area of the brain that was activated even when looking at sexual images. When receiving visual sexual stimulation, almost all participants were activated in areas of the brain related to emotional information processing, reward system processing, and desire.
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On the other hand, heterosexual subjects tended to activate mainly in the left hemisphere of the cerebrum, whereas homosexual subjects tended to activate in both hemispheres, the research team pointed out.
However, due to the small sample size, the research team says it cannot be asserted that the response will change depending on sexual orientation.
Furthermore, it was found that there was a difference in brain activity depending on whether the visual sexual stimulation was an image or a movie. When showing the image, the activation was done in the whole brain, but in the case of the movie, the activation was seen in a more limited part. Nuri speculates that the reason why there is a difference in activation between images and movies is that 'images may be easier to process than movies.'
by Joshua Heller
However, despite the fact that almost the same brain region as the male subject was activated, the female subject did not show a positive reaction to the sexual image. 'Maybe it's not because women are less responsive to visual sexual stimulation than men, but because many people see viewing sexual content as a social stigma,' the researchers said. I'm guessing. 'The results of this experiment are based on rough observations by fMRI, and gender differences at the cellular level may become clear in future studies,' the research team said.
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