Editors' overview: Neuroethics: many voices and many stories.

Advances in neuroscience continue to enhance understanding of the brain and provide new tools to take advantage of that understanding. These changes are poised to profoundly alter society. Given that the impact will be felt not only by neuroscientists, but by diverse members of society, it is imperative that conversations engage all stakeholders. Doing so will allow for the sharing of diverse views and perspectives to understand and frame the science, better educate and prepare the public for new developments, and provide a shared approach to identifying and resolving ethical challenges. These were the goals of Neuroethics Week, staged in 2007 by the Center for Ethics in Science and Technology in San Diego, and are the basis for the contributions to this special issue of Science and Engineering Ethics.