My research focuses on the mechanisms of socio-emotional development and the processes involved in risk for psychopathology. I am particularly interested in the intersection between social and biological processes in children's development, and accordingly I use a range of diverse methods, including observational techniques for measuring family processes (attachment, parenting), quantitative and molecular genetics for examining genes and gene-environment interactions, and biological measurements for capturing peripheral physiology (e.g. cortisol, heart rate) and brain function (EEG, fMRI). As my primary interest is in development, much of my work involves longitudinal cohort studies, and multivariate longitudinal data analysis.