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Freeze Warning, Cumberland Plateau Advisory

Winter-like conditions will be possible for middle Tennessee this weekend. A freeze warning is in effect for Friday and Saturday night. Temperatures will drop to around the freezing mark in Nashville and upper 20s outside the metro area. Saturday night will be even colder with temperatures dropping as low as the mid-20s outside the metro. Breezy NW winds will add to the chill. In addition to the cold, rain showers along the Cumberland Plateau will change over to light snow overnight.

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STUDY: Men and Women's Brains Are Wired Differently

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FOX News--Men aren't from Mars and women aren't from Venus, but their brains really are wired differently, a new study suggests.


The research, which involved imaging the brains of nearly 1,000 adolescents, found that male brains had more connections within hemispheres, whereas female brains were more connected between hemispheres. 

The results, which apply to the population as a whole and not individuals, suggest that male brains may be optimized for motor skills, and female brains may be optimized for combining analytical and intuitive thinking.


"On average, men connect front to back [parts of the brain] more strongly than women," whereas "women have stronger connections left to right," said study leader Ragini Verma, an associate professor of radiology at the University of Pennsylvania medical school. But Verma cautioned against making sweeping generalizations about men and women based on the results. 


Previous studies have found behavioral differences between men and women. For example, women may have better verbal memory and social cognition, whereas men may have better motor and spatial skills, on average. Brain imaging studies have shown that women have a higher percentage of gray matter, the computational tissue of the brain, while men have a higher percentage of white matter, the connective cables of the brain. 

But few studies have shown that men's and women's brains are connected differently.


In the study, researchers scanned the brains of 949 young people ages 8 to 22 (428 males and 521 females), using a form of magnetic resonance imaging (MRI) known as diffusion tensor imaging, which maps the diffusion of water molecules within brain tissue. The researchers analyzed the participants as a single group, and as three separate groups split up by age.


As a whole, the young men had stronger connections within cerebral hemispheres while the young women had stronger connections between hemispheres, the study, detailed today (Dec. 2) in the journal Proceedings of the National Academy of Sciences, found. However, the cerebellum, a part of the brain below the cerebrum that plays a role in coordinating muscle movement, showed the opposite pattern, with males having stronger connections between hemispheres.
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