Mature Does Boys
Brizendine says that after eight weeks in utero all children's brains appear exactly the same: female. Female is nature's default setting. It is only after a surge of testosterone that boys' brains begin to look male.
mature does boys
\"The studies that were done with children around 12 months old where their moms went in a room with them and they were told not to touch an object,\" recounts Dr. Brizendine. \"The boys would just go right for the object and touch it. The girls would hear their mom's voice, turn around, look at their mom's face, and stop. Boys don't hear the complete tones in the female voice.\"
\"The reason little girls may play better together is brain wiring -- verbal ability at a younger age,\" she continued. \"And they may just be able to negotiate the sharing better than boys. Of course, little boys and little girls act differently. Adult men and adult women act differently, too. But it has really been ignored until probably the middle '90s.\"
At puberty, there is again an explosion of hormones, according to Brizedine. As a female teen's brain emerges, hormones dramatically reorganize her brain circuitry, driving the way she thinks, feels, acts and even obsesses over her looks. Studies show that these surges of estrogen can trigger teen girls' need to become sexually desirable to boys.
To further illustrate how a teen's changing brain chemistry often molds their behavior, Dr. Brizendine invited ABC's 20/20 to listen as she spoke to students at the Marin School outside San Francisco. Girls, she explained, mature faster than boys, and girls' brains are as much as two years ahead during puberty.
When it comes to emotions, Dr. Brizedine says girls have their own area that's twice as large as boys' -- the hippocampus, which is the seat of emotional memory. The female brain uses many centers in both hemispheres that activate in response to faces, voices and expressions. Men, however, use only one side of their brain.
Scientists at Newcastle University in the U.K. have discovered that girls tend to optimize brain connections earlier than boys. The researchers conclude that this may explain why females generally mature faster in certain cognitive and emotional areas than males during childhood and adolescence. The new study was published on December 19, 2013, in Cerebral Cortex.
Environmental pressures like needing to perform well on standardized tests, a lack of physical activity, social disconnection, a constant stream of digital media, excessive screen time, potential ADHD medications, and poor nutrition conspire to make it difficult for the young brain to form optimal connections during adolescence. Again, it seems that young boys are especially vulnerable to short-circuiting without the physical outlets they have evolved to need over millennia.
However, they found that not all projections (long-range connections) between brain regions are affected to the same extent for males and females: Changes were influenced differently depending on the types of connections. Changes in these connections have been found in many developmental brain disorders including autism, epilepsy, and schizophrenia. With many neurological diseases, there are widespread differences between the sexes. For example, autism spectrum disorders are almost 5 times more common among boys (1 in 54) than among girls (1 in 252).
Results: As boys matured, there was a decrease in hip sagittal-plane RoM (49.02 degrees to 43.45 degrees, Benjamini-Hochberg adjusted P = 0.027), hip flexion at initial contact (29.33 degrees to 23.08 degrees, P = 0.018), and peak hip flexion (38.66 degrees to 32.71 degrees, P = 0.046), and an increase in trunk contralateral rotation (17.47 degrees to 25.05 degrees, P = 0.027).
In a study performed by Newcastle University in England, it was discovered that as the brain matures it begins to remove neural connections that are stored which it does not think are important. The connections in the brain that are not used regularly tend to shrink and evaporate due to lack of use-whereas the neural networks that are regularly engaged survive. This is called fire and wire, and is an example of survival of the fittest among neural networks.
The removal of neural networks and optimizing of brain connectivity usually occurs during ages 10-12 in girls, and 15-20 in boys, which explains females faster maturation in certain cognitive and emotional areas during childhood and adolescence.
Girls physically mature faster than boys on a physical level as well due to the quicker process of puberty. Girls undergo puberty earlier than boys by about 1-2 years, and generally finish the stages of puberty quicker than males due to their differences in biology.
Although it is not exactly known why girls experience puberty