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Peer Problems and Hyperactivity–Impulsivity Among Norwegian and American Children: The Role of 5‐HTTLPR
Author(s) -
Stenseng Frode,
Li Zhi,
Belsky Jay,
Hygen Beate W.,
Skalicka Vera,
Guzey Ismail C.,
Wichstrøm Lars
Publication year - 2017
Publication title -
child development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.103
H-Index - 257
eISSN - 1467-8624
pISSN - 0009-3920
DOI - 10.1111/cdev.12766
Subject(s) - impulsivity , norwegian , psychology , 5 httlpr , developmental psychology , peer review , clinical psychology , linguistics , philosophy , polymorphism (computer science) , biochemistry , chemistry , political science , genotype , law , gene
Peer problems are linked to attention deficit hyperactivity disorder ( ADHD ) symptoms and the serotonin system is thought to be involved in ADHD ‐related behavior. Hence, from a Gene × Environment perspective, the serotonin transporter 5‐HTTLPR may play a moderating role. In two large community samples, the moderating role of 5‐HTTLPR was examined related to more hyperactivity–impulsivity symptoms ( HI symptoms) predicted by more peer problems. In Study 1, involving 642 N orwegian children, results indicated that for s ‐allele carriers only, caregiver‐reported peer problems at age 4 predicted more parent‐reported HI symptoms at age 6. In Study 2, similar results emerged involving 482 A merican children. Discussion focuses on differential sensitivity to the adverse effects of poor peer relations.