CNN, A Detailed Look at Children's Brains Might Show How Sex and Gender are Different, New Study Says
Sex and gender are often conflated or equated in everyday conversations, and most American adults believe a person’s gender is determined by sex assigned at birth. But a new study of nearly 5,000 9- and 10-year-olds found that sex and gender map onto largely distinct parts of the brain.
The research gives a first insight into how sex and gender may have “measurable and unique influences” on the brain, study authors said, just as other experiences have been shown to shape the brain.
“Moving forward, we really need to consider both sexes and genders separately if we better want to understand the brain,” said Dr. Elvisha Dhamala, an assistant professor of psychiatry at the Feinstein Institutes for Medical Research and the Zucker Hillside Hospital in Glen Oaks, California, and a co-author of the study, published Friday in the journal Science Advances.
The researchers on the new study defined sex as what was assigned to the child at birth. In the US, clinicians make this assignment based on genitalia. Most people are assigned either female or male, according to the research; the rest are intersex, a person whose sexual or reproductive anatomy doesn’t fit this male/female binary.
The researchers defined gender as an individual’s attitude, feelings and behaviors, as well as socially constructed roles. They noted specifically that gender is not binary, meaning not all people identify as either female or male.
Both sex and gender are a core part of human experience. They’re key to how people perceive others and how they understand themselves. Both can influence behavior as well as health, the study authors say.***
The authors used a kind of artificial intelligence called machine learning that built a model that could predict a child’s sex and reported gender from their brain scan. When the researchers looked the children’s brain scans, the results seemed to show that sex influenced different regions of the brain that are involved in visual processing, sensory processing and motor control and some regions involved in executive function, which lets an individual organize and integrate information across time.
Gender seems to influence some of the more sensory-specific networks that are associated with sex, but it also seems to have a broader influence and can be detected on different brain networks involved in executive function, including things like attention, social cognition and emotional processing.
July 31, 2024 in Gender, Healthcare | Permalink
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