Genetic Analysis: 'Are You A Natural?'

A person’s personality and their eudemonia are what shapes a person’s life. However the reason behind these concepts are still debated as to whether they are affected by nature or by nurture. The Genetic Influences on Psychological Well-Being: A Nationally Representative Twin Study was a study led by Prof Timothy Bates in 2012. It was held at the University of Edinburgh and was held because they wanted to solve whether nature or nurture influenced a person’s eudemonia and personality. The study focused on personality traits which contribute to our chances of success in life. For example, how determined we are to succeed by overcoming challenges. The method used was to collect data from more than 800 sets of identical and non-identical twins. Then the 42-item Ryff Psychological Well-Being Scale was used to measure the psychological well-being. The result of the case was that nature is responsible

Many psychologists agree that nurture play a greater part in the development of a human being. Studies such as those performed on monozygotic twins (identical), who share the same genetics and those performed

“Trying to separate out nature and nurture as explanations for behavior, as in classic genetic studies of twins and families, is now said to be both impossible and unproductive” (Levitt, 1). Social scientists have declared the nature-nurture debate to be unnecessary. Similarly, scientists feel that such debate is not only unhelpful, but also outdated. From geneticists’ perspective, nurture and nature interact to influence

Table 3-1 examines the correlations between selected characteristics for the identical twins separated at birth and the twins raised together. When compared to each other, they both have very similar brain wave activity, blood pressure and heart rate in the physiological characteristics. The Raven intelligence test was very similar, but the WAIS IQ displayed a bit of difference when compared to the other comparisons made. Personality wise, they typically had similar personalities at the same rate as twins raised together. Psychological interests were off a little bit, but still very similar. The twins that were separated at birth had less similar psychological interests compared to the twins

Twin studies are a mainstay of the nature verse nurture debate because they allow researchers to conduct “natural experiments” on human beings. When researchers try to determine the relative importance of genetics and environment with regard to a certain condition, they have a hard time because they cannot generally get people with the same genes. This is where twin studies come in. Twins studies are part of the method used in behaviour genetics, which includes all data that are genetically informative. E.g. siblings, adoptees, pedigree data etc. Researchers use this method to estimate the heritability of traits and to quantify the effect of a person 's shared environment (family) and unique environment (the individual events that shape a life) on a trait.

The Minnesota Twin Registry started in 1983 and its goal was to establish a registry of all twins born in Minnesota from 1936 to 1955 to be used for psychological research.., T.J. Bouchard, working in conjunction with the University of Minnesota, started exploring the similarities and differences in characteristics like personality, career interests, and a variety of personal interests between identical twins who were reared apart. Research was conducted on twins from all over the world. The Minnesota Twin study gave scientists a new insight of the role of nature vs. nurture on human development and personality; it was the hope that twin studies would be able to tie genes to specific behaviors. From the study, we understand that twins who were separated at birth and raised in different families

The main focus of this study is whether nature or nurture is stronger. The researches wanted to see if twins who were separated at birth would still grow up to be similar. I believe the results will be that the twins will share some interests and similarities, like all siblings do, but because of the separation they will not be as similar as that might have been if they had been kept together. From my experience, people are born with a personality. There are certain traits that we are born with that the environment we grown up in can influence, but cannot completely change. With that said, the environment we grow up in does play a large role in the people we become and what are opinions are. As we talked about with the sociological imagination, outside influences make a huge impact on our

The concept of Nature v. Nurture is one that describes the different aspects of the environment and genetics that make up someone’s personality. On one side, Nature is the abilities and other traits inherited from someone’s parent that predetermines how they will mature over the years. An example of this would be that many believe that children are born smart and that they inherit their intelligence from their parents. While on the other, Nurture is the environmental influences that sculpt how someone acts. For example, one will react to certain situations they are in based on past experiences. This concept plays a vital role in the research because even though the twins had grown-up in two completely different

Twin studies have been a large part of the growing debate on whether genetics or environment (nature v. nature) is responsible for the cognitive, socio-cultural and biological development. In order to properly assess twin studies it is important to know why and how they are relevant in psychology. Identical twins are especially effective in research particularly in the field of developmental psychology and behavioral genetics due to the monozygotic genes which means they originate from a single zygote (fertilized egg) which essentially means they share 100% of the same genes. Due to this exact copy of genes between twins means this can be efficiently be used in order to observe the impact of

Who a person’s parents or relatives are is already predetermined at conception. The traits that a child’s family have are going to be his/her traits simply because of genetics. According to the above study done on Croatian twins, genetic factors account for “stability in personality” from seventy-five to one hundred percent (Bratko and Butkovic 155). The researchers used genetic models to look into the differences between twins. They broke genetics into two sources in this study: additive genetic influences and nonadditive genetic influences. Bratko and Butkovic insinuated that, based on the findings of this project, heredity was mostly attributed to the steadiness of personality in the pairs of twins. In the novel Nature Via Nurture: Genes, Experience, & What Makes Us Human by Matt Ridley, a quote was attributed to Ralph Greenspan from his research on romance between fruit flies. He likened personality to this

In this study, they are used several type of method, one of the technique is used two or more test instrument to ensure the adequate coverage, for example the participants were given a battery of personality and mental ability tests, interest and value inventories and psychomotor tests. In addition, separate of examiners administer the IQ test, life history interview, psychiatric interview and sexual life history interview. The twin also complete questionnaire independently under the constant supervision of the staff members. Twin studies are valuable to researchers because identical twins share 100% of their genes and fraternal twins share, on average, 50% of their genes. Both identical and fraternal twins share certain aspects of their environment (e.g. religious practices in the home). This allows researchers to estimate the heritability of certain traits. Participants are asked about academic ability, personality, and interests; family and social relationships; mental and physical health; physiological measurements. Of interest to researchers are prevalence of psychopathology, substance

‘Heritability’ refers to how far genetic differences are responsible for variations in traits, characteristics or abilities within a population. Heritability studies may involve twins or adopted children, where it might be possible to distinguish between genetics and environmental influence. These studies generally find that monozygotic twins are more intellectually akin than dizygotic twins; similarly children who have been adopted, remain intellectually comparable with their biological parents. This infers that there must be a genetic component responsible for differences in intelligence. However heritability estimates are inconclusive. (Deary 2001) claims that the heritability estimate tends to be placed between 40% and

Across studies of 10,000 twins, the intelligence test scores of identical twins reared together are virtually as similar as those of the same person taking the same test twice…Likewise, the test scores of identical twins reared separately are similar enough to lead twin researcher Thomas Bouchard (1996) to estimate that ‘about 70 percent’ of intelligence score variation ‘can be attributed to genetic variation. (p. 455)

However, in recent decades research into the nature and extent of neuroplasticity, has cast doubts on the concept of IQ and laid emphasis on nurture rather than nature (Aldrich, 2014). For instance, research on twin studies have recently suggested that environmental influences are the main focus on child development. The first study was a twin study of teacher assessment. “Twin studies of tests on academic achievement support the assumption that shared environmental factors contribute importantly to individual differences (S.O Walker 2004 page; 325). For twins aged six to twelve years old the academic scores estimated around 60% for shared environment (Thompson et al, 1991, cited in S.O Walker 2004), whereas a study of twins in high school estimated shared environment as 30% (Loehlin and Nichols, 1976, cited in S.O Walker, 2004). Due to the decrease in shared environmental influence with increased age may be due to the differentiation in experience that takes place as children grow older and spend less time outside of home. In summary, suggesting that environmental influences play a larger role in shaping a child’s development. Some might argue that these types of environmental factor should be considered as supportive whereas the biological factors such as our genetic code should be

The debate between nature verse nurture theories focus on whither a person’s development is dependent upon ones genetic blueprint or the