“In order to gain access to sub-dominant, somewhat hard-to-access R-mode, the non-verbal, visual perceptual system of the brain, it is necessary to present one’s own brain with a task that the dominant verbal system, L-mode, will turn down.”
http://drawright.com/theory/
Drawing a perceived object (so-called “realistic” drawing), Betty Edwards proposes, is a visual perceptual skill made up of five component skills. These are the basic skills that you will learn in our workshops. They are: 1) Seeing and drawing edges (sometimes called “contour drawing”) 2) Seeing and drawing spaces (called “negative spaces”) 3) Seeing and drawing relationships (called “perspective and proportion”) 4) Seeing and drawing...
https://annamasonart.com/painting-takes-left-mind
The first step to painting from your right brain (and why that's important) - Anna Mason Art
Whilst we need them both to be functioning in order to paint – especially in a realistic, detailed way, I’ve come to see it as vital that we make a shift to the consciousness of our right brain when we paint.
Official website of Betty Edwards, author of Drawing on the Right Side of the Brain. Features drawing workshops by artist Brian Bomeisler, DRSB Shop to purchase art and drawing tools and materials.