http://craigdilouie.com/this-is-your-brain-on-writing/
https://www.sciencedirect.com/science/article/abs/pii/S0010945216303458
Several brain imaging studies identified brain regions that are consistently involved in writing tasks; the left premotor and superior parietal cortices have been associated with the peripheral components of writing performance as opposed to other regions that support the central, orthographic components.
The process of creative formulation and physical writing lights up a whole lot of the human brain. Language, cognition, memory, visual processing, planning and control, and the ability to make associations between unrelated concepts all come into play.
When you read and write, you are exercising your brain. This is because you are using your brain to process information and communicate with others. By doing this regularly, you are keeping your brain active and healthy. In addition, reading and writing can help improve your memory and concentration.
The left-brain is analytical, fact-based, and organised. The right-brain on the other hand is emotional, intuitive and creative. Writers need the left-brain approach, to be able to turn out manuscripts that readers can understand. But without the right-brain, their work is likely to be dry and uninteresting.
