A mouse that loses one whisker becomes more sensitive to his remaining whiskers, because neurons in the touch-related cortical region rewire to receive inputs from the spared whiskers. When scientists recorded neural activity before and after trimming a mouse whisker, they found that it was the less active neurons that became more sensitive to spared whiskers.8 - http://nautil.us/issue/27/dark-matter/heres-why-your-brain-seems-mostly-dormant?curator={channel.label}