It’s a Redux week here at LWON as we take a short summer break. My holiday reading is Tales From Both Sides of the Brain: A Life in Neuroscience, by Michael S. Gazzaniga. It’s a memoir of the amazing discovery of split-brain phenomena in patients whose left and right brains have been separated. It put me in mind of this guest post by Sam Kean that ran on May 5, 2014. I think it might be my favorite guest post so far. Enjoy!
If neuroscientists could pick one idea to pack into a wormhole and expel to the outer reaches of the galaxy, there would be several worthy candidates. Some would probably pick the notion that you can “read” people’s tastes and preferences and even political ideologies on brain scans. Others might banish all talk of “neuroplasticity” and “mirror neurons.” Still others would rejoice to never hear another person ramble on about the “logical” left brain versus the “artistic” right brain, and how you can fulfill your creative potential only by thinking with both halves of your brain at once. Who knew!
All that said, backlashes can go too far sometimes. And in the last case especially, it’s a shame that hippie-dippy pseudopsychology has turned a lot of people off to the fascinating world of left brain/right brain differences. The two hemispheres really do have distinct talents, and while it’s easy to make too much of those differences, they do offer a fascinating peek at how the brain evolved and how it works in certain situations. Take the ability to read emotions on other people’s faces. Continue reading