My left brain has gradually 'eaten' the right-brain capabilities away.
I recently read that it's the left brain that does all that calculating, and the right brain that does the poetry. Somehow I've veered way towards the left. I've been doing it for years. Maybe I do art to balance it out. Jason Mraz
The left brain is responsible for making order out of chaos, for making sense of things in the world that don't always add up. To do this, it often makes up stories, fantastic confabulations in some cases, just to be able to explain what we're experiencing. Daniel Levitin
Creating the characters is the most creative part of the novel except for the language itself. There I am, sitting in front of my computer in right-brain mode, typing the things that come to mind - which become the seeds of plot. It's scary, though, because I always wonder: Is it going to be there this time? Elizabeth George