The dopamine D2 receptor gene, perceived parental support, and adolescent loneliness: longitudinal evidence for gene–environment interactions
Abstract
Background: Loneliness is a common problem in adolescence. Earlier research focused on genes within the serotonin and oxytocin systems, but no studies have examined the role of dopamine‐related genes in loneliness. In the present study, we focused on the dopamine D2 receptor gene ( DRD2 ). Methods: Associations among the DRD2 , sex, parental support, and loneliness were examined in a longitudinal study spanning five annual waves ( N = 307). Results: Using Latent Growth Curve Modeling, DRD2 genotype was not directly related to loneliness. Interactions were found between parental support and DRD2 genotype, showing that adolescents with the A2A2 genotype who perceived little support from their parents had the highest baseline levels of loneliness. Adolescents with an A1 allele were not susceptible to the rewarding effect of parental support. Conclusions: The present study is the first to examine the role of the DRD2 genotype in loneliness. Our results contribute to a further understanding of the environmental and genetic basis of loneliness in adolescence.
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- Authors
- van Roekel, E., Goossens, L., Scholte, R. H. J., Engels, R. C. M. E., & Verhagen, M.
- Affiliations
- KU Leuven (BE)
- Radboud University Nijmegen (NL)
- Venue
- Journal of Child Psychology and Psychiatry
- Publisher
- Wiley
- Published
- 2011-06-15
- Volume
- 52
- Issue
- 10
- Pages
- 1044-1051
- ISSN
- 0021-9630 (ISSN-L)
- 1469-7610
- OpenAlex
- W2116841679
- Cited by
- 44
- References
- 49
- Citations by year
- 2026: 2 · 2025: 2 · 2023: 2 · 2022: 6 · 2020: 2 · 2019: 1 · 2018: 1 · 2017: 4 · 2016: 2 · 2015: 7 · 2014: 5 · 2013: 4 · 2012: 5
- FWCI
- 1.99
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Child Psychology and Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion)
- Radboud Repository (Radboud University) (submittedVersion)
- Funders
- Radboud Universiteit
- Behavioural Science institute, Radboud University
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Social Sciences › Psychology › Clinical Psychology › Child and Adolescent Psychosocial and Emotional Development
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
- Keywords
- dopamine D2 receptor gene, adolescent loneliness, parental support, gene-environment interaction, A1 allele, adolescent development
- MeSH terms
- Adolescent, Depression, Female, Heterozygote, Homozygote, Humans, Loneliness, Longitudinal Studies, Male, Models, Neurological, Parent-Child Relations, Psychological Tests, Receptors, Dopamine D2, Evidence-Based Medicine, Gene-Environment Interaction
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