Left-Brain vs. Right-Brain: Debunked but not Dead

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Left-Brain vs. Right-Brain: Debunked but not Dead Over the past few decades popular culture has conditioned us to think that the way we learn depends on our personality and cognitive style. We have been taught that we are all either right-brained or left-brained thinkers, a theory called brain lateralization. The thought comes from the fact that certain functions come from one side of the brain or the other. Thus, if you are a logical thinker then you are left-brained, and if you are the creative type then you are right-brained. Unfortunately, none of this is true. Brain lateralization, at least in this function, has never been proven, or even supported, by science. The idea that people are either right-brained or left-brained most likely started due to research by Dr. Roger Sperry, a Nobel Prize winning neuroscientist, who’s split-brain theory came from his research with epilepsy patients (Wanjek, 2013). In his research he would disconnect to two sides of the brain by cutting their connection, the corpus callosum. This disallowed the two sides of the brain from communicating and, through a series of experiments, led to the realization that different functions are handled by different sides of the brain (The Split-Brain, 2003). This realization was taken by psychologists and turned into what has become today’s idea of brain lateralization. Pop Culture has been consumed with teaching one side of the brain or the other. There are thousands of books, articles, and papers written on the topic. In a simple internet search using “brain lateralization and teaching” as the search parameters I came up with over 1.6 million hits. Several of those results came from scholarly and reputed sources, too. One of those was famed dyslexia resear... ... middle of paper ... ...son, M.A., Lainhart, J.E., Anderson, J.S. (2013) An Evaluation of the Left-Brain vs. Right-Brain Hypothesis with Resting State Functional Connectivity Magnetic Resonance Imaging. PLoS ONE 8(8). E71275, DOI:10.1371/journal.pone.0071275 Sonnenfeld, B. (Director). (1997). Men In Black [Motion Picture]. Sunderland, M. (2012, August 22). How to Teach Your Right-Brained Child. Retrieved December 22, 2013, from AbundantLIFE: http://www.mariannesunderland.com/2012/08/how-to-teach-your-right-brained-child/ The Split Brain Experiments. (2003, August 30). Nobelprize.org. Retrieved December 22, 2013, from http://www.nobelprize.org/educational/medicine/split-brain/background.html Wanjek, C. (2013, March 9). Left Brain vs. Right: It's a Myth, Research Finds. LiveScience.com. Retrieved December 22, 2013, from http://www.livescience.com/39373-left-brain-right-brain-myth.html

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