Those are some interesting:

   "When Amargan sketched these images—as opposed to shapeless scribbles—the researchers saw activity in brain areas typically associated with vision, including the striate cortex and the frontal and parietal regions of the visual cortex."

That reminds me of a virtual frame buffer where off screen rendering happens. I wonder what the differences are between someone who lost vision due to damage to the visual cortex in the brain version issues that prevent visual information from reaching the brain.