Advances in biotechnology have enabled interventions in the human organism (genetic, psychopharmological, and technical) that promise to increase physical and intellectual performance over the 'normal' or 'natural' boundary, as well as to make possible targeted changes in human experience. The author investigates ethical debates surrounding these issues with a particular focus on arguments that employ a normative concept of a person that allows or disallows for these particular interventions.

Jan-Christoph Heilinger, Ethik-Zentrum der Universität Zürich, Schweiz.