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Are male and female brains different? For artificial intelligence, yes

2024-03-06 21:17:18Lifestyle SHKRUAR NGA REDAKSIA VOX
Are male and female brains different? For artificial intelligence, yes
Are male and female brains different? For artificial intelligence, yes

Is it possible to tell a male brain from a female brain just by looking at a brain scan?, writes focus.it.

The scanner of course not, but artificial intelligence succeeds: an AI system recognized the gender of a series of brain images with an accuracy of 90%, focusing on certain changes in brain networks.

The discovery published in PNAS supports the controversial hypothesis that "there are differences in the way the male and female brain is organized."

The existence of differences between male and female brains is a hotly debated topic in science and at the center of conflicting results.

Structurally, our thinking organs are similar, and another element of confusion is that men, while tending to have larger bodies, usually have a larger brain volume, an issue that is often overlooked. in neuroscience studies that compare the size of certain brain areas.

The influence that sex assigned at birth has on the organization of the brain is also at the center of a heated scientific debate. On the one hand it is thought that sex chromosomes can influence the "cocktail of hormones" to which the brain is exposed starting from the early stages of development, on the other hand it is very difficult to link these possible differences to an influence specifically in the human brain.

Studies to date that have looked at how brain regions work together have found no clear indication of differences between men and women.

Vinod Menon, professor of psychiatry at Stanford (USA) tried to use the potential of Artificial Intelligence in the analysis of extensive databases of brain scans to see if it was possible to find changes that had been overlooked before.

Menon and colleagues created an AI capable of learning to classify brain scans and notice, as it "looked" at the images and learned whether they belonged to a male or female brain, certain repeating patterns useful for distinguishing them.

This training on functional magnetic resonance imaging (fMRI) scans of a thousand adults allowed the AI ​​to capture previously unquantifiable differences in how different brain regions work together in male and female brains.

Newly trained, the AI ​​was able to tell with 90% accuracy whether a second battery of scans from the same thousands of subjects belonged to a male or female brain.


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