Are you drawn to Impressionism? Or more toward 3D computer art? Beauty is in the eye of the beholder. Or is it? Contrary to the old adage, there may be universal biological principles that drive art’s appeal, and its capacity to engage our brains and our interest. Through artworks ranging from post-modernism to political caricature to 3D film, Margaret S. Livingstone and Patrick Cavanagh join cartoonist Jules Feiffer and others in an examination of newly understood principles of visual perception.