Article: Genetic modeling of childhood social development and personality in twins and siblings with schizophrenia Aurthors: M. M. Picchioni1,2*, M. Walshe1, T. Toulopoulou1, C. McDonald3, M. Taylor4, S. Waters-Metenier1, E. Bramon1, A. Regojo1, R. M. Murray1 and F. Rijsdijk5
Nature vs. nurture is a topic that has been debated for centuries. Pro-nature goes with the theory that genetics and biological inheritance determine behavior, while pro-nurture perspective follows the theory that the environment in which one is raised in and experiences determine behavior. Nature and nurture together shape development. Although the two differ, they do work hand in hand in the sense that the characteristics we possess as individuals are created through the joint force of nature and nurture. This article focuses on nature versus nurture, to gene and environment interaction in schizophrenia. The study of nature and nurture in the development of behavioral traits begun around 1865 from Francis Galton, and has grown significantly since then. Genetic research has overall shown genetic influence in psychological areas such as mental illness, cognitive disabilities, personality, drug use and abuse. Areas such as self-esteem, interests, attitudes, and school achievements have showed stronger genetic influence. A recent poll found that more than 90% of parents and teachers reported genetics as being as important as the environment for mental illness, personality, learning difficulties, and intelligence. Genetics and environment influence individuals’ characteristics and each account for about half of the variance. Schizophrenia was thought to be caused by the environment up to the 1960s, having poor parenting be the blame for this mental disorder. This fact sheds light on what we discussed in class about the early theories on nature versus nurture. Early scientists used to generalize one factor or the other as the prime influence. Twin and family studies explore the extent...
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