An publication discuss this issue, with the interview of artists who have scientific backgrounds. State of the art between this relation semi structured interviews are analyzed.
As I psychologist, I think that art can produce knowledge, which is generally known as aesthetical knowledge. There are even authors who think that this type of knowledge can be seen in terms of levels of stages of artistic development. This idea, appears, for example, in Parsons, M. (1987). How we understand art: A cognitive developemetal approach to artistic development.