2015 Appointed as Adjunct Faculty at Purdue University, West-Lafayette, Indiana, USA

2013 Distinguished Visiting Scholar, University of Technology Sydney
(UTS), Australia

2010 Member of AcademiaNet, Internetportal for Excellent Scientists, Robert Bosch Stiftung

2006 Journal of Mathematical Psychology Outstanding Paper Award for the Years 2003-2005

2005 Visiting Scholar, Purdue University

2000 Visiting Scholar, Northwestern University, (DFG)

1999 Zentrum für interdisziplinäre Forschung (ZiF), Bielefeld

1998 Heisenberg Fellowship (Five years, DFG, DI 506/5-1, 5-2)

1997 New Investigator Award of the Society for Mathematical Psychology

1996 Visiting Scholar, Purdue University, (Benjamin Winer Memorial Fund)

1995 Visiting Scholar, University of North, Carolina at Chapel Hill, (DAAD &NSF)

1994 Habilitanden Fellowship (DFG, DI 506/2-1)

1993 Visiting Scholar, Purdue University, (Benjamin Winer Memorial Fund)

1992 Postdoctoral Fellowship (DFG)

1991 Doctoral degree summa cum laude and Award for distinguished dissertations, Hamburg University