| 2018-present: |
Consultant Medical Psychology for Indonesia |
| 2018-present: |
guest professor at the Padjadjaran University Bandung, faculty of Psychology |
| 2013-present: |
(emeritus) guest professor at the Vrije Universiteit Amsterdam, section Clinical Psychology |
| 2013-2018: |
Academic Director Indonesia for the VU University Amsterdam |
| 2012-2020: |
Secretary of the Board of the Van Deventer Maas Foundation |
| 2009-2013: |
full professor in 'Psychological aspects of Somatic Complaints, in particular Pain', at the VU University ('Vrije Universiteit') Amsterdam, Faculty Behavior and Movement Sciences. |
| 2009-2013: |
Dean of the Faculty Psychology and Education, at the VU University Amsterdam |
| 2008-2015: |
General member of the Health Council of the Netherlands |
| 2008-2010: |
Member of the Committee Children and Schools, Health Council of the Netherlands (Netherlands Ministry of Housing, Spatial Planning and the Environment). |
| 2008-2009: |
Member of the Committee Medical Scientific Research with children, Health Council of the Netherlands (Ministry of Health, Welfare and Sport) |
| 2004-2008: |
Member of the VIDI-committee of NWO (the Dutch Organization for Research) |
| 2003-present: |
Member of the Programcommittee on Pain research III of ZonMW |
| 2000-2009: |
Chairman of the board of Directors of Dutch departments of Medical Psychology. |
| 1999-2007: |
Member of the Central Ethical Committee on Medical Scientific Human Research |
| 1998-2006: |
Chairman Advisory Committee of Reproductive Medicine at Erasmus MC Rotterdam |
| 1994-present: |
Member of the Pediatric Subcommittee of the International Headache Society |
| 1994-1998: |
Chairman Dutch Working Group "Health Status Measurement" |
| 1993-2009: |
Full professor Medical Psychology; Head of the Dept of Medical Psychology and Psychotherapy, Erasmus Medical Centre Rotterdam |
| 1993-2000: |
Chairman Program committee on Pain research of I and II of ZonMW |
| 1991-1998: |
Secretary NWO-working-group "Behaviour factors of somatic disorders" |
| 1990-2000: |
Director Centre of Psychomedical and Psychotherapeutic Research, Erasmus Medical Center Rotterdam |
| 1984-1993: |
Assistant professor, Dept of Medical Psychology and Psychotherapy, Erasmus Medical Center Rotterdam |
| 1975-1984: |
Research fellow, Dept Psychology, Free University Amsterdam |
| 1971-1975: |
Student assistant, Dept Psychology, Free University Amsterdam |