- Iris M. Strangmann (07-09-2022) “The Relative Cost of Codeswitching: An Electrophysiological Study Contrasting Language Switching versus Lexical Predictability” (The City University of New York) (external reviewer)
- Ann-Katrin Ohlerth (13-06-2022) “Improving preoperative nTMS with a dual-task protocol: the contribution of action naming to language mapping” (Groningen University) (“cum laude” assessment; external assessor)
- Ana Rita Sá-Leite (17-12-2021) “Representation and processing of grammatical gender: analysing the gender congruency effect” (University of Santiago de Compostela) (member of the jury & opposition committee)
- Anne Catharina Bolders (02-02-2021) “Hearing while feeling. Affective influences on auditory perception” (Leiden University) (member of the jury & opposition committee)
- Yulia Akinina (12-11-2020) “Individual behavioral patterns and neural underpinnings of verb processing in aphasia” (Groningen University) (member of the jury & opposition committee)
- Cesko Voeten (13-10-2020) “The adoption of sound change. Synchronic and diachronic processing of regional variation in Dutch” (Leiden University) (member of the opposition committee)
- Evandro Landulfo Teixeira Paradela Cunha (27-05-2020) “Contributions to the computational processing of diachronic linguistic corpora” (Leiden University) (member of opposition committee)
- Jana Thorin (20-02-2020) “Can you hear what you cannot say? The interactions of speech perception and production during non-native phoneme learning” (Radboud University Nijmegen) (member of the jury & opposition committee)
- Monique Anna Maria de Jong (13-06-2019) “Novel speech processing strategies in cochlear implants: Real improvements competing with learning effects” (Leiden University) (member of the opposition committee)
- Efraïm Salari (01-04-2019) “Towards a speech BCI: The relation between sensorimotor cortex activity and speech, articulator and facial movements” (Utrecht University) (member of the opposition committee)
- Joan Orpella Garcia (21-02-2019) “Neural determinants of statistical learning: Bridging language, attention and reward” (Universitat de Barcelona) (member of the manuscript committee and chair of the jury)
- Andreea Geambaşu (11-12-2018) “Simple rule learning is not simple. Studies on infant and adult pattern perception and production” (Leiden University) (chair of the jury & member of the opposition committee)
- Matthias Pache (05-12-2018) “Contributions to Chibchan historical linguistics” (Leiden University) (member of the opposition committee)
- Robert Grimm (14-11-2018) "Computational mechanisms for bootstrapping in language development: Using existing knowledge to discover categories in speech”(University of Antwerp) (member of the jury & opposition committee)
- Carmen Kung (30-10-2018) “Speech comprehension in a tone language: The role of lexical tone, context, and intonation in Cantonese-Chinese” (Radboud University Nijmegen) (member of the jury & opposition committee)
- Natalia Shitova (05-06-2018) “Electrophysiology of competition and adjustment in word and phrase production” (Radboud University Nijmegen) (member of the opposition committee)
- Wouter Broos (05-03-2018) “Self-monitoring and language production in L2 (tentative title)” (Ghent University) (member of the jury & opposition committee)
- Matthias Franken (05-02-2018) “Listening for speaking: Investigations of the relationship between speech perception and production” (Radboud University Nijmegen) (member of the jury & opposition committee)
- Ting Zou (28-09-2017) “Production and perception of tones by Dutch learners of Mandarin” (Leiden University) (chair of the manuscript committee)
- Gwilym Lockwood (12-04-2017) “Talking sense: The behavioural and neural correlates of sound symbolism” (Radboud University Nijmegen) (member of the opposition committee)
- William Lawrence Schuerman (27-03-2017) “Sensorimotor experience in speech perception” (Radboud University Nijmegen) (member of the opposition committee)
- Marleen Kunneman (25-02-2016) “Shared decision making in adjuvant cancer treatment” (Leiden University) (member of the opposition committee)
- Nienke Houtzager (12-11-2015) “Bilingual advantages in middle-aged and eldery populations” (Rijksuniversiteit Groningen) (member of the opposition committee)
- Manuel Jesús Ruiz Muñoz (12-05-2015) “Controlling thought and action: A perspective from khat users and cocaine users” (Leiden University) (member of the manuscript & opposition committee)
- Anil Çamci (03-12-2014) “The cognitive continuum of electronic music” (Leiden University) (member of the opposition committee)
- Mariëlle J. L. Prevoo (19-11-2014) “Bilingualism is more than just the sum of two parts: The family context of language development in ethnic minority children” (Leiden University) (member of the opposition committee)
- Marijn Schraagen (11-11-2014) “Aspects of record linkage” (Leiden University) (member of the manuscript & opposition committee)
- Stephan A. Verschoor (25-06-2014) “Learning about goals: Development of action perception and action control” (Leiden University) (member of the manuscript committee)
- Ellahe Chabani (15-04-2014) “Enhancing visuospatial processing skills in children” (Leiden University) (member of the manuscript & opposition committee)
- Kateřina Chládková (07-03-2014) “Finding phonological features in perception” (University of Amsterdam) (member of the manuscript & opposition committee)
- Yinyin Zhu (12-12-2013) “Expression and recognition of emotion in native and foreign speech. The case of Mandarin and Dutch” (Leiden University) (member of the manuscript committee)
- Sita M. ter Haar (05-06-2013) “Birds and Babies: A comparison of the early development in vocal learners” (Leiden University) (member of the manuscript & opposition committee)
- Ongaye Oda Orkaydo (28-03-2013) “A grammar of Konso” (Leiden University) (member of the opposition committee)
- Nadine Chahine (25-10-2012) “Reading Arabic. Legibility studies for the Arabic script” (Leiden University) (member of the opposition committee)
- Soghra Akbari Chermahini (25-10-2011) "Neural and cognitive mechanisms of creativity" (Leiden University) (member of the manuscript & opposition committee)
- Sharon Shafir Zmigrod (09-09-2010) "Feature integration across multimodal perception and action" (Leiden University) (member of the manuscript & opposition committee)
- Laura Menenti (02-07-2010) "The right language: Differential hemispheric contributions to language production and comprehension in context" (Radboud University Nijmegen) (member of the manuscript, opposition and cum laude committee)
- Annemiek Hammer (25-05-2010) "The acquisition of verbal morphology in cochlear-implanted and specific language impaired children" (Leiden University)
- Michaela Poss (11-05-2010) "Under construction: Cognitive and computational aspects of extended lexical units" (Leiden University)
- Andus Wing-Kuen Wong (May 2010) “Towards a model of Cantonese spoken word production” (The Chinese University of Hong Kong – Graduate School) (external assessment for doctoral thesis)
- André Keizer (18-02-2010) “The neurocognitive basis of feature integration” (Leiden University) (member of the manuscript committee)
- Nelleke van Wouwe (03-12-2009) “Cognitive control and binding in context-based decision-making. Normal and dopamine deviant populations” (Leiden University) (member of the opposition committee)
- Merel Pannebakker (03-12-2009) “Limitations in dual-task performance” (Leiden University) (member of the manuscript & opposition committee)
- Michiel Spapé (02-12-2009) “Back in control. The episodic retrieval of executive control” (Leiden University) (member of the manuscript & opposition committee)
- Els Severens (24-04-2008) “Was there an error? Self-monitoring and language comprehension” (Ghent University) (member of the examination committee)
- Jan Rouke Kuikers (09-04-2008) “Semantic context effects in word production: The role of message congruency” (Leiden University) (member of the manuscript & opposition committee)
- Nina Groten (10-03-2008) “Parallel activation of different word forms – Investigation of speech production by means of associates” (Bonn University)
- Nomi Olsthoorn (29-11-2007) “Relationships between grammatical encoding and decoding. An experimental psycholinguistic study” (Leiden University) (member of the opposition committee)
- Esther van den Bos (06-06-2007) “Implicit artificial grammar learning: Effects of complexity and usefulness of the structure” (Leiden University) (member of the manuscript & examination committee)
- Sven van Lommel (31-04-2007) “Word stress: The suprasegmental encoding in speech production” (Katholieke Universiteit Leuven) (member of the manuscript & examination committee)
- Marieke van Herten (07-09-2006) "Executive control of sentence perception. An electrophysiological investigation" (Radboud University Nijmegen) (member of the opposition committee)
- Goran Lazendic (2006) "Locus and source of verbal associations" (University of New South Wales) (member of the manuscript committee)
- Keren Shatzman (07-04-2006) “Sensitivity to detailed acoustic information in word recognition” (Radboud University Nijmegen) (member of the opposition committee)
- Vincent van de Ven (27-01-2006) “Connectivity and auditory verbal hallucinations. Contributions of functional imaging and psychometric studies” (Maastricht University) (member of the manuscript & opposition committee)
- Oliver Müller (20-01-2006) “Retrieving semantic and syntactic word properties. ERP studies on the time course in language comprehension” (Radboud University Nijmegen) (member of the opposition committee)
- Katharina Spalek (08-11-2005) “Storage and retrieval of lexical-syntactic properties in language production: The case of grammatical gender” (Radboud University Nijmegen) (member of the manuscript & opposition committee)
- Anke Hammer (30-06-2005) “Pronominal reference in sentences about persons of things” (Maastricht University) (member of the manuscript & opposition committee)
- Sanae Okamoto-Barth (09-06-2005) “Gaze processing in chimpanzees and humans” (Maastricht University) (chairman)
- Jochen Barth (09-06-2005) “Search and exploration of hidden objects by Great Apes and young children” (Maastricht University) (chairman)
- Astrid Storm Hammersted Breien (07-06-2005) "Determiner selection in speech production: Evidence from Norwegian" (University of Bergen) (external reviewer and member of the MA thesis examination)
- Member of the dissertation prize jury of the Netherlands Association of Applied Linguistics (Association néerlandaise de linguistique appliqué; Anéla) 2005
- Niko Kriegeskorte (14-10-2004) "Functional magnetic resonance imaging of the human object-vision system. Methodological and empirical contributions" (Maastricht University) (member of the opposition committee)
- Holger Mitterer (28-11-2003) "Understanding 'gardem bench'. Studies on the perception of assimilated word forms" (Maastricht University) (member of the opposition committee)
- Heike Martensen (22-01-2001) "How does a word become a /w3:d/? The role of sublexical phonology in adult reading" (Nijmegen University) (member of the opposition committee)