The hunger artist that inspired the title in of this blog and who is the central character in the short-story "The Hunger Artist" by Franz Kafka, may have looked something like this in Kafka's imagination.
You can read about why he choses not to eat here. His reasons appear to have nothing to do with any motivation to make art, but like art, they will give you pause to think.
My immediate take-away is that he like other anorectics feel helpless in the face of the enormous challenges presented by human society, and seize upon the idea that they can control their anxiety by not eating. But really I don't know.