Nature vs Nurture
For many years now society and psychologists have been studying and debating a major issue. This issue is whether heredity or environment plays a greater role in the determining or shaping of an individuals behaviour. In other words this issue is known as the nature versus nurture debate. In this debate there are three main topics, intelligence, personality, and behaviour. From the evidence below it will reveal how heredity and environment affect each of these. My personal opinions are that this debate is not solved by one determining force but by a combination of the two. Both heredity and environment play an equal and crucial role in individual behaviours. In terms of heredity affecting intelligence, the question here is do genetic influences such as genes affect an individuals intellectual ability or IQ? This area of genetics is a very controversial one. Studies have shown that IQ testing of identical twins are virtually similar, even identical twins when being reared separately have similar IQ scores. Could this be from a similarity in being reared or the similarity of their genes? Fraternal twins who share half of each other's genes, are much less similar in IQ scores. There have also been studies conducted where
Much like the example of twins in the IQ or intellect argument, identical twins share very similar personalities and behaviours because of their identical genes. These installed rules leave a lasting effect on children; they remember how to act certain ways in certain situations. This gives some support of heredity affecting personality and behaviour. There is another debate surrounding human physical traits and gender difference. But it also matters whether or not one is adopted into an impoverished or fruitful environment. This seems to be similar to Adolph Hitler's idea of creating the perfect human. The most impressive feat is the ability to choose the sex of a child. Although in today's modern and accepting society, parents would like the family name to be extended for generations to come. When discussing heredity influencing personality and behaviour the nature position attributes personality characteristics to inborn dispositions. Schizophrenia and depressive disorders are main mental disorders that can be inherited. One technique to determine if this theory is true is through the comparison of monozygotic twins (identical twins) and dizygotic twins (fraternal twins). Researchers do not find this theory true. Some couples may naturally be unable to conceive a child. In childhood people learn their foundations of knowledge. On the contrary if the child's personality and behaviour is like that of their adoptive parents, it proves that nurturing has an effect and can change inherited traits.
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