| from 1978 | Studies in Philosophy, Ethnology and Theology, Johann Wolfgang Goethe-Universität, Frankfurt am Main |
| 1982 | MA in Philosophy, topic of treatise: "Rationalismus und Mystik" |
| | After Doctorate, supported by a scholarship of the Studienstiftung des Deutschen Volkes |
| 1985 | Ph.D., topic of dissertation: "Neuere Beiträge zur Diskussion des Leib-Seele-Problems", Frankfurt University |
| Teaching Assignment, European Campus of the University of Maryland, Gießen |
| 1986-1987 | Teaching Assignments and Lectureships, Department of Philosophy, Frankfurt |
| since 1987 | Teaching Assistant, Center for Philosophy and Foundations of Science, University of Gießen; Teaching Assignments and Lectureships, Universities of Gießen, Frankfurt and Oldenburg |
| 1992 | Appointment as "Hochschulassistent" and Public Servant on time |
| Habilitation for Philosophy, Justus-Liebig-University Gießen |
| 1993 | Appointment as University Lecturer by the dean of the Faculty of History of the Justus-Liebig-University Gießen |
| 1995 | Substitution for the professorial Chair of Martin Lang, Department of Philosophy, University of Osnabrück |
| 1996 | Substitution for the professorial Chair of Georg Meggle, Department of Philosophy, University of Saarbrücken |
| 1996-1997 | Substitution for the professorial Chair of Georg Meggle, Department of Philosophy, University of Saarbrücken |
| 1997-1998 | Fellow, Hanse-Wissenschaftskolleg, Bremen-Delmenhorst |
| 1998-1999 | Visiting Scholar, Philosophy Department, University of California, San Diego |
| 1999-2000 | Substitution for the professorial Chair of Vittorio Hösle, Department of Philosophy, University of Essen |
| 2000 | Full Professor for Philosophy of Cognitive Science, International Programme in Cognitive Science, Institute for Semantic Information Processing, Department of Philosophy, University of Osnabrück |
| since 2000 | Full Professor for Theoretical Philosophy, Johannes Gutenberg-Universität Mainz |
