His interdisciplinary research is situated at the interface between developmental psychology and social (cognitive affective) neuroscience. He focuses on normal as well as disturbed functioning of the human social brain, with a special interest in social interaction, caregiving, and attachment. He uses several state-of-the-art social neuroscience techniques, among which three neuroimaging methods: (functional) magnetic resonance imaging ([f]MRI), functional near infrared spectroscopy (fNIRS) hyperscanning, and electroencephalography (EEG). He combines these neuroimaging methods with biological assessments ([epi]genetics, blood and saliva samples regarding immune system functioning and telomere length measurement), psychological self-report questionnaires, behavioral testing (age-appropriate narrative measures of attachment), as well as video-ratings. His participants are adults, adolescents, as well as children, both female and male, and most recently parent-child dyads – both fathers and mothers with their young children.