Nature Vs. Nature : Nature And Nurture

969 WordsNov 5, 20154 Pages
Human beings are complicated and have complex personalities—and serial killers even more complex. Determining where these personalities come from, especially in serial killers, is a question of speculation asked by psychologists. One theory, nature, is that who people are is determined by genetics. Another theory, nurture, is that people are who they are because of environment. Both theories are in fact correct; however, the cause of personality is not solely nature or nurture, but on a case by case basis, can be both. According to Saul McLeod in “Nature versus Nurture in Psychology,” nature is “what we think of as pre-wiring and is influenced by genetic inheritance and other biological factors.” Nature is our prewritten genetic code—genes determine physical characteristics like height, eye color, hair color, but genes can also determine personality. When studies based on nature are performed, fraternal twins are often studied; In “Nature and Nurture Debate” Sarah Mae Sincero states that “When fraternal twins are reared apart, they show the same similarities in behavior and response as if they have been reared together” (1). Even though the environment has changed, behavior stays the same. McLeod defines nurture as followed: “Nurture is generally taken as the influence of external factors after conception e.g. the product of exposure, experience and learning on an individual” (1). With the nurture factors of surroundings, childhood
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