Physiological Psychology : The Effects Of Heredity On Disordered Eating Behaviors

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Physiological Psychology: The Effects of Heredity on Disordered Eating Behaviors Ashley Hannan Liberty University Abstract This paper investigates five scholarly articles which researched and reported upon the correlation of heredity and genetics factors upon disordered eating behaviors in individuals. Some of the articles argue that genetics and physiology play a more important role in the formation of disordered eating behaviors, while others assert that nurture and environment have a larger role on their development. Many times, articles examine a larger scope of risk factors, focusing on the genetic and the environmental factors and how both can play a part in the development of eating disorders and associated behaviors.…show more content…
Historically, many researchers focused on the environmental factors which lead to the development of eating disorders. More recently, researchers such as Baker et. al (2009) and Racine et. al (2011) have focused on the genetic and physiological factors that affect eating disorders, while researchers like Keel and Klump (2003), Striegel-Moore and Bulik (2007), and Wade et. al (2013) have been focusing on environmental factors, genetic factors, and the combination thereof. Literature Review Research by Baker et. al (2009) looks into the genetic risk factors which affect adolescents. Using a sample of 15 to 17 year old same gender twins and opposite gender twins, Baker et. al. studied the role of genetic and environmental factors on the adolescents. Baker et. al 's research starts by focusing on the sex differences in EDs, explaining that "until recently, research examining EDs in males and sex differences in EDs focused on individual cases or small clinical samples" (2009). Where as now, research has started focusing on larger, more varied samples. Then the study goes on to look at three facets of disordered eating behaviors (body dissatisfaction, drive for thinness, and bulimia) and how genetic factors play a role in the development of those behaviors. The study found that disordered eating behaviors often had a high correlation to hereditary factors and that in some individuals, the chemical make up of the brain is altered (Baker et. al 2009).
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