2019
- Workshop “The Future of Academic Lexicography” (with Frieda Steurs, Dirk Geeraerts, Iztok Kosem & Marian Klamer), Lorentz Center, Leiden (The Netherlands), 4-8 November, 2019.
- Conference on Multilingualism (COM; with Sarah von Grebmer zu Wolfsthurn, Anneloes van Iwaarden & Margot Starkenburg), Leiden University, Leiden (The Netherlands), 1-3 September, 2019.
2015
- IAFPA Annual Conference, Leiden Univeristy, Leiden (The Netherlands), 8-10 July, 2015.
2013
- Introduction to Cognitive-Neuroscientific Methods for Dummies, Leiden University, Leiden (The Netherlands), 19 March, 2013.
2012
- Workshop “Language development in children and adolescents”, Lorentz Center, Leiden (The Netherlands), 9-13 January, 2012.
2011
- LIBC symposium on multilingualism “TWEE Talen, ÉÉN BeTalen” (‘Two languages, only pay for one’), Leiden University, Leiden (The Netherlands), 20 May, 2011.
- Masterclass on Bilingual Language Acquisition, Leiden University, Leiden (The Netherlands), 19 May, 2011.
2009
- Symposium “The cognitive neuroscience of letter processing” at the 8th Endo-Neuro-Psycho Conference, Doorwerth (The Netherlands), 3-5 June, 2009.
- 8th Endo-Neuro-Psycho Conference, Doorwerth (The Netherlands), 3-5 June, 2009 (chair of the organizing committee).
- Session “Two languages, one brain: The cognitive neuroscience of bilingualism” at the 1st Sino-UK-Netherlands Frontiers of Science symposium, Beijing (China), 8-11 November, 2009.
2008
- Symposium "Neurocognition of multilingualism" (with Dirk Koester, Maastricht University) at 7th Endo-Neuro-Psycho Conference, Doorwerth (The Netherlands), 4-6 June, 2008.
2007
- Symposium “Manual and verbal action planning: Points of convergence” (with Bernhard Hommel, Leiden University) at the 15th ESCoP conference, Marseille (France), 29 August – 1 September, 2007.
2006
- Symposium “Cognition: From Molecules to Mind” (with Daniëlle Posthuma, Vrije Universiteit Amsterdam and Pieter Roelfsema, Nederlands Instituut voor Neurowetenschappen/Vrije Universiteit Amsterdam). De Jonge Akademie (The Young Academy) workshop at the KNAW in Amsterdam, 29 March, 2006.
- Symposium “Language production” (with Rob Hartsuiker, Universiteit Gent and Ingrid Christoffels, Universiteit Maastricht) at the Belgium Association for Psychological Science meeting, Liège (Belgium), 19 May, 2006.
- Symposium "Cognitive neuroscience of language" at 5th Endo-Neuro-Psycho Conference, Doorwerth(The Netherlands), 6-9 June, 2006.
2005
- Second International Workshop on Language Production, Faculty of Psychology, Maastricht University, Maastricht (The Netherlands), 28-30 August, 2005.
- Tenth wintercongress of the Netherlands Psychonomic Society, Egmond aan Zee (The Netherlands), 16-17 December, 2005.
2004
- Open day "Faculty of Psychology, Maastricht University" (Netherlands Psychonomic Society), Maastricht (The Netherlands), 13-14 May, 2004.
- Symposium "Language processing" at 3rd Endo-Neuro-Psycho Meeting, Doorwerth(The Netherlands), 1-4 June, 2004.
2003
- Ninth wintercongress of the Netherlands Psychonomic Society, Egmond aan Zee (The Netherlands), 19-20 December, 2003.
- Symposium "Self-monitoring" at the Ninth wintercongress of the Netherlands Psychonomic Society, Egmond aan Zee (The Netherlands), 19-20 December, 2003.
2001
- Eighth wintercongress of the Netherlands Psychonomic Society, Egmond aan Zee (The Netherlands), 14-15 December, 2001.