The first artificial brain prosthesis will be implanted soon in rats. If initial tests of the artificial silicon hippocampus goes well, then testing in primates and humans will follow. One of Diana's old philosophy professors was quoted in the article: "Any device that mimics the brain clearly raises ethical issues. The brain not only affects memory, but your mood, awareness and consciousness - parts of your fundamental identity, says ethicist Joel Anderson at Washington University in St Louis, Missouri."