Women have more active brains than men: Study

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Women have more active brains than men: Study

Posted on : Saturday 12th of August 2017

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Washington: Women's brains are significantly more active than that of men, especially in the areas involving focus, impulse control, mood and anxiety, a study has found.

The largest functional brain imaging study to date compared 46,034 brain imaging studies to quantifying differences between the brains of men and women.

"This is a very important study to help understand gender-based brain differences. The quantifiable differences we identified between men and women are important for understanding gender-based risk for brain disorders such as Alzheimer's disease," said Daniel G Amen, founder of Amen Clinics in the US and lead author of the study published in the Journal of Alzheimer's Disease.

The brains of women in the study were significantly more active in many more areas than men, especially in the prefrontal cortex, involved with focus and impulse control, and the limbic or emotional areas of the brain, involved with mood and anxiety.

SPECT (single photon emission computed tomography) can measure blood perfusion in the brain. Images acquired from subjects at rest or while performing various cognitive tasks will show different blood flow in specific brain regions.

Subjects included 119 healthy volunteers and 26,683 patients with a variety of psychiatric conditions such as brain trauma, bipolar disorders, mood disorders, schizophrenia/psychotic disorders, and attention deficit hyperactivity disorder (ADHD).

A total of 128 brain regions were analysed for subjects at baseline and while performing a concentration task.

Understanding these differences is important because brain disorders affect men and women differently.

Women have significantly higher rates of Alzheimer's disease, depression, which is itself is a risk factor for Alzheimer's disease, and anxiety disorders, while men have higher rates of (ADHD), conduct-related problems and incarceration.

The study findings of increased prefrontal cortex blood flow in women compared to men may explain why women tend to exhibit greater strengths in the areas of empathy, intuition, collaboration, self-control, and appropriate concern.

The study also found increased blood flow in limbic areas of the brains of women, which may also partially explain why women are more vulnerable to anxiety, depression, insomnia, and eating disorders. 

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