Forsøget viser, at adfærdsgenetik ikke kun handler om at opdele populationsvariation i genetiske og miljømæssige faktorer, som tidligere antaget. Det blev tidligere anset for, at genetiske og miljømæssige indflydelser var adskilte, og at gen-miljø-interaktioner var ubetydelige. Imidlertid tyder teoretiske overvejelser og nye empiriske resultater på, at der er vigtige biologiske interaktioner mellem almindelige genetiske varianter og miljømæssige risici.
Titel på undersøgelse:
Gene–Environment Interdependence.
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Hele abstrakt på originalsprog:
Behavioural genetics was initially concerned with partitioning population variance into that due to genetics and that due to environmental influences. The implication was that the two were separate and it was assumed that gene-environment interactions were usually of so little importance that they could safely be ignored. Theoretical considerations suggested that that was unlikely to be true and empirical findings are now accumulating on the demonstrated and replicated biological interactions between identified common single genetic variants and the operation of environmentally mediated risks. The paper outlines the evidence and considers why it is changing concepts in ways that matter.