Thursday, August 18, 2016

Brain and Handedness, 4

Some studies have linked left-handedness with an increased risk for auto-immune diseases and schizophrenia as well as a higher risk for being a genius. Left-handers tend to have an especially fine use of the right cerebral hemisphere and are more likely to excel in architecture and fine arts. They may also be more impacted by fear since the protective emotions of fear, anger, and sadness, tend to be more aligned with the right hemisphere. This means they may also find it easier to ‘get angry’ when upset. A report on research by Professor Daniel M. Abrams and graduate student Mark J. Panaggio of Northwestern University was published in the Journal of the Royal Society Interface (2012). Their mathematical model showed that handedness may reflect the balance between cooperation and competition: cooperation favors same-handedness while competition favors the unusual. Indeed, the model they developed accurately predicted a greater than fifty percent left-handedness among top baseball players and well above the general population rate of ten percent for other sports (e.g., boxing, hockey, fencing, and table tennis). 

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