Nature vs. Nurture
Homosexuality, Addictions and Intelligence
There have always been disputes on whether the decision to be homosexual or heterosexual was based on biological or environmental factors. These disputes are known as the Nature vs. Nurture argument. The two sides argue over how gender is chosen within a person. Based on reproductive organs, sex is easily determined at birth: male or female. Gender, however; is the sexual identity an individual takes on. It is possible for sex and gender to be different.
For an example of nurture children who were both born with an injured or damaged reproductive organ, males usually can be raised successfully as females. In order to understand which factor is the deciding factor of a person’s gender, both sides of the case must be fully evaluated. DNA studies which appear to prove that gender is a genetic trait. Researchers have analyzed the makeup of the human brain of homosexuals and heterosexuals seeking a connection between gender and the brains physiology. They found when studying the part of the brain directly related to a persons’ sexual drive, that homosexuals had an enlarged hypothalamus, whereas heterosexuals had a normal one indicating a direct correlation between the brain and gender selections (AllPsych).
In researching DNA’s role in gender identity, some scientist have identified the gene that determines a person’s sexual preference. Although there are mounting evidence of the existence of a “gay gene, “the opposition denies the existence (AllPsych). People in support of the Nurture argument claim that is an individual conscious or subconscious decision as to his or her gender identify. While many claim that people may control their sexual orientation, their brain, and not the other way around are actually controlling them. A person DNA and brain physiology control sexual preference which may be associated in the amygdale of the limbic system (Pscyhsmart). When scientist castrated the...
Cited: Johnson, Ryan D. AllPsych (2005). “Homosexuality: Nature or Nurture”.
Ridley, M. (1999). Genome: The autobiography of a species in 23 chapters. London: Fourth Estate Ltd.
Sternberg, R. J., & Grigorenko, E. (Eds.) (1997). Intelligence, heredity, and environment. Cambridge, UK: Cambridge University Press.
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