Comments: Another paradigm goes bye bye. Old model said that cells need to be dividing to undergo mutations, or epigenetic changes. Most brain cells (neurons) do not divide. When cells divide they copy their DNA, which allows mistakes to occur. Bottom line is that epigenetic changes can occur due to stimulation. Makes sense evolutionarily to have a flexible system.

Scientists discover fickle DNA changes in brain
September 30th, 2011 in Neuroscience