At Journal of Alzheimer's Disease The largest brain imaging study, created by Amen Clinics, has been published.
The study covers 46,034 CT scans for single photon emission (SPECT) that allowed to obtain some correlations.
SPECT images monitor activity in the brain by recording blood activity in specific areas as subjects perform various tasks or rest.
The images come from 119 healthy volunteers and 26,683 patients They suffer from a variety of psychiatric problems that include bipolar disorder, schizophrenia / psychotic disorders, mood disorders, brain traumas and ADHD.
The study analyzed the activity in a total of 128 regions using reference images at rest compared to the images taken while the subjects performed assigned concentration tasks. According to the founder of Amen and lead author of the study, Daniel G. Amen:
This is a very important study to help understand gender-based brain differences. The quantifiable differences we identify between men and women are important to understand the gender-based risk of brain disorders, such as Alzheimer's disease. The use of functional neuroimaging tools, such as SPECT, is essential for developing precision medicine brain treatments in the future.
The brains of women were more active than those of men and in more areas. The prefrontal cortex, which is the place for higher executive functions, it was a region in which women showed greater activity. This could explain their greater capacity for empathy, collaboration, self-control and intuition.
Women, however, are much more likely to develop Alzheimer's than men, and to develop depression, which is believed to be a precursor to Alzheimer's, as well as anxiety disorders.
Increased blood flow of women in limbic areas can also explain their vulnerability to anxiety and depression, insomnia and eating disorders. Men are less likely to develop Alzheimer's, men are more prone to ADHD.