Abdel Abdellaoui

August 29, 2025

Genetics of educational attainment and social problem behaviors: Robust estimates of direct genetic effects

Abstract This study examines the genetic underpinnings of (problematic) socioemotional behaviors in children (6–18 years old) by leveraging a within-family…

November 21, 2022

The genetic aetiology of cannabis use: from twin models to genome-wide association studies and beyond

Abstract Cannabis is among the most widely consumed psychoactive substances worldwide. Individual differences in cannabis use phenotypes can partly be…

November 10, 2017

Hair Cortisol in Twins: Heritability and Genetic Overlap with Psychological Variables and Stress-System Genes

Abstract Hair cortisol concentration (HCC) is a promising measure of long-term hypothalamus-pituitary-adrenal (HPA) axis activity. Previous research has suggested an…