Currently my research focuses on using NGS data from monozygotic twins to detect and characterize genomic mosaicism arising from post-zygotic mutations. In addition, I am working with gene expression data. Genetic correlations between complex traits (especially ADHD) always have my interest.

Research Profiles


Authors Title Journal Published
The Computational Pan-Genomics Consortium Computational pan-genomics: status, promises and challenges. Briefings in Bioinformatics October 2016
Middeldorp, Hammerschlag & Ouwens, et al., A Genome-Wide Association Meta-Analysis of Attention-Deficit/Hyperactivity Disorder Symptoms in Population-Based Pediatric Cohort JAACAP August 2016
Lubke, Ouwens, De Moor, Trull, Boomsma Population heterogeneity of trait anger and differential associations of trait anger facets with borderline personality features, neuroticism, depression, Attention Deficit Hyperactivity Disorder (ADHD), and alcohol problems Psychiatry Research October 2015
Genetics of Personality Consortium Meta-analysis of Genome-Wide Association Studies for Extraversion: Findings from the Genetics of Personality Consortium Behavior Genetics September 2015
Genetics of Personality Consortium Meta-analysis of Genome-wide Association Studies for Neuroticism, and the Polygenic Association With Major Depressive Disorder. JAMA Psychiatry July 2015
Genetics of Personality Consortium Harmonization of Neuroticism and Extraversion phenotypes across inventories and cohorts in the Genetics of Personality Consortium: an application of Item Response Theory Behavior Genetics July 2014

Last Thursday

Last Thursday plays original songs that tell stories about perfect yet elusive love, personal revolutions and more. To date we have performed at numerous stages in Amsterdam including Magneet Festival, Sugar Factory and Hannekes Boom. Last Thursday won two local competitions: In de Diamantfabriek 2015 (previously known as ‘Amsterdams studentenfestival’) and Strijd om Stukafest 2016.



Dynamic Gentlemen

Dynamic Gentlemen plays rock covers for everyone to sing along to.



Email address: website at klaasjanouwens dot nl. See my CV