Complex sentence: Douglas Richard Hofstadter (born February 15,1945) is an American professor of cognitive science whose research focuses on the sense of "I", consciousness, analogy-making, artistic creation, literary translation, and discovery in mathematics and physics.
Split into simpler sentences: Douglas Richard Hofstadter (born February 15,1945) is an American professor of cognitive science. His research focuses on the sense of "I", consciousness, analogy-making, artistic creation, literary translation, and discovery in mathematics and physics.