About

I am an Assistant Professor in the Clinical Psychology group at Leiden University, after stays at the University of Amsterdam, University of Leuven, the University of Michigan, and Free University of Berlin. I work in the fields of clinical psychology, psychiatry, epidemiology, and methodology, and occasionally dabble in philosophy of science; here is my CV.

My main interest lies in studying individual symptoms of mental disorders and their causal relations, a framework we have termed Symptomics. More generally, I am interested in four aspects of psychopathology research: measurement (how to best assess whether someone is ill), modeling (what statistical models are most appropriate to model psychopathology), ontology (what are mental disorders) and nosology (how do we best classify them).

When I am not working, I enjoy taking and post-processing photographs, traveling, singing, cooking, reading, and boardgames/RPGs. Legal disclaimer: this is a personal website.


The new General Data Protection Regulation (GDPR), May 25 2018, requires a data transparency statement. This blog runs on the most recent version of the WordPress software, and the blog is hosted by https://www.host4free.de who also store all data. Comments will be stored. I use the standard WordPress plugin Jetpack with all basic features that collects some user data. I will update this section with more detail until May 25 2018.