Objective: To review implications of genetic research in child psychiatry.
Method: Key advances in quantitative and molecular genetics are noted and findings are summarized with respect to autism, attention-deficit hyperactivity disorder, oppositional defiant and conduct disorders, depression, schizophrenia, and Tourette's syndrome.
Conclusions: Genetic findings will be helpful clinically in the elucidation of disordered brain processes, the understanding of nature-nurture interplay, diagnosis, genetic counselling, and pharmacotherapy.