Hormones And Levels Of These Hormones

One theory that many psychologist and scientist are trying to prove is that homosexuality has a fundamental biological basis. Similar to most mammalian species, humans at conception are females (McKnight 22). Toward the end of the first trimester is when the babies with a “male genetic message” begin to have small doses of two hormones, chorionic gonadotropin and luteinizing hormone, which start the altering process of the gonads into testes (McKnight 22). The hormones two jobs are to control the sexual development and control their function (McKnight 22). When the brain starts to develop masculine characteristics and lose the feminine characteristics, the processes are separate and occur at different

A pattern emerges where the scholarly literature exploring this topic is largely focused on males. Reason being is that it appears that males are the sex who are predominantly homosexual in their orientation (LeVay & Baldwin, 2012). However, the sensitivity within the discourse of sexual orientation arises when it is debated upon whether one 's sexual preference is innate at birth, hence a force of nature or biology, or if it is a result of culture, nurture or environmental factors (Emmanuele et al., 2010). Furthermore, an experimental design will be proposed to further examine this topic. Comparing the three chosen studies, it is evident that a biological and endocrinological perspective does account for sexual orientation (Kraemer et al., 2006; Manning et al., 2007; Miller et al., 2008). Of the studies that currently exist on this topic, data shows that prenatal testosterone levels are indicative of sexual orientation (Kraemer et al., 2006; Manning et al., 2007; Miller et al., 2008). This paper addresses a topic that is relevant in today 's society; a topic that has, for the most part, been written off as having any scientific roots (Emmanuele et al., 2010). This paper counters that belief and in reading this essay, it will be evident that biology and endocrinology have a much stronger influence on sexual orientation than previously thought.

In one article by Marcia Malory, “Homosexuality & Choice: Are Gay People ‘Born This Way’”, she goes into multiple studies on the genetics of a gay child's parents. A study conducted in 1993 the “gay gene” matter arose when it was looked into the homosexual children's parents having a different X chromosome marker. Nonetheless genes do not control our behavior completely as does environment. The brain may also play a role in sexual preference, like the study in 1991 showing the difference in neurons and pituitary glands. Later in the 2000s more studies showed that gay men have more symmetrical hemisphere and amygdala resembles that of women's. The brain develops in the womb and continues through late adulthood. When did a fetus choose its

In general, individuals are interested in people of the countering sex. However, a compelling number of people are particularly interested in someone of the identical gender (Slife, 2013). Sexual assimilation is a physiological attribute that exhibit one of the greatest scopes of sexual distinction, given that 90-97% of human beings of one sex demonstrate an appeal that is dissimilar from that of the alternate gender (Slife, 2013, p. 36). In like manner, the devices that conclude characteristics of people 's sexual assimilation have been the topic of intense debates. In fact these dialogues frequently concentrated on homosexuality proper, because the assimilation is slightly frequent and thus occasionally expressed unjustly as different from standard or norm (Slife, 2013, p. 40). Essentially,

The next study was conducted by Michael G. Dupree et al. in the year of 2003,  where they studied to see if the gene, Aromatase cytochrome P450 (CYP19), affected sexual orientation during development since it changes the levels of androgens and estrogens. Studies have shown that developing male brains are sexually altered by the hormones secreted by the fetal testes (DuPree et al., 2003). The ratio Androgen to estrogen plays an important role when it comes to developing the masculinization of the fetal brain (DuPree et al., 2003). The results of the study indicated that CYP19 did play a role in developing sexual orientation since it plays a key role in the sexual differentiation in the brain. They found more traces of CYP19 mRNA in homosexual

The Halsey project serves to justify or disprove three theories that attempt to explain how and why some humans experience a sexual orientation that is anything other than binary. Three theories encompass equally compelling evidence to sexuality. Theory one states that sexuality is the result of a person’s body having an adverse reaction to a currently unknown substance; theory two states that a person may experience a different sexual orientation due to an incorrect balance in prenatal embryonic fluids, and theory number three states that one’s sexual identity or orientation may stem as a result of an adverse effect of an endocrine malformation.

Testosterone and Estradiol are important in regulating negative feedback mechanism of GnRH, LH and FSH. The present study examines the effects of exogenous testosterone and estradiol administration on the reproductive efficacy of male Sprague-Dawley rats. Testosterone and Estradiol was administrated into rats for a period of two weeks. After the two-week period, their reproductive organs were measured as well as levels of testosterone. The results were compared to control group of male rats who were housed under the same conditions. The experimental groups treated with exogenous sex steroids were infertile, with no sperm motility and reduced size of sex organs. Illustrating the importance of negative feedback and regulation of hormones controlling

Other studies conducted suggest that homosexuality might be base on difference in the brain structure of homosexual and heterosexual males. In 1991, Simon LeVay, a researcher at salks institute for biological studies in San Diego, found that an area of the brain called INAH-3 was larger in heterosexual men as in homosexual men [6]. INAH-3 is a small cell cluster in the hypothalamus that is involve regulating male sex behavior. LeVay’s finding provided clues that prove that sexual attraction to some extent might be biological. Other studies following levay’s study suggest that homosexuality might be base on genetic. It is believe that “gay gene” is passed from mother tho son.

Dr. LeVay did a research and study about the brain to figure out the cause and the differences in the sexual orientation of the different people (LeVay &Valente, 2006). The main focus of his study was the brain of the homosexual and heterosexual individuals. Dr. LeVey’s research was

Dr. Allen suggests that hormones make our brains different. Psychologists know the first one causes male sex characteristics, but the second one is still a mystery. An example is CAH girls, short for Congenital Aderinal

The East German scientist, Dr. Gunter Dorner, has devoted his life's work to the theory that exposure to certain hormones before birth determines sexual inclination. He claims that potential future homosexual behavior can be detected through amniocentesis, the test of the uterine fluid which can reveal Down's syndrome in the unborn child. Dorner further claims that, with prenatal injections, homosexuality can be prevented. The male hormone masculinises the mind, where in the absence of testosterone the brain develops along a naturally female pattern. (Dorner, 365) Dorner finds that the brain is not masculinises all in one go. Dorner suggests that in men and women it is the presence or absence of male hormones that build the structure of the brain bit by bit into a male or female pattern of sexual

It has long been debated where our sexual orientation comes from, particularly whether its biological or social forces driving these behaviors. In regards to homosexuality and bisexuals, some have argued that it may be a choice that these individuals are making.(Levay 2012: 41)Some have even said it is a mental disorder that one can recover from, but there is plenty of data that says otherwise.(Levay 2012: 41)(Levay 2012: 65) I believe diverse sexual orientations develop in humans due to sex hormones during fetal life, gene influences, and other effects such as birth order influences. I’ve come to this conclusion based on the narrative provided via Dr. Simon LeVay’s book Gay Straight, and the Reason Why, and the research that has been compiled showing strong influences from a multitude or reasons. I will also be looking at a research paper by Francesca Iemmola and Andrea Camperio Ciani, who looked into genetic factors influencing sexual orientation in men. It is clear there are gender differences between men and women, and this is probably one of the strongest indicators that hormones can affect the outcome of variations in gender traits.

This question has been asked for many years: is being homosexual a decision, or are people born that way? During the1990’s people thought it was an illness or a disgrace to the family, but now homosexuals are perceived differently due to studies. Neuroscientists of the Christianity Today Newspaper, argue that homosexuality can be a natural response of the hypothalamus itself based on the size of hypothalamus the child is born with. Neuroscientists have questioned “does its size determine homosexuality, or does homosexuality determine its size?” (Dallas). Yet, no one can be sure since the test was done on two deceased men. This being said, people can believe homosexuality is a gene that they are born with. This situation has aroused through this century as research rises concerning behaviors from the structures of the brain. In order to continue to convince the reader that people can be born homosexual and it is not a choice that they make as they grow. The article “Born Gay?” written by

Knowing the differences in the brain begins to give some understanding on how and why females and males learn differently. There are many basic differences in learning. Like stated previously females are better at verbal skills which makes them better at reading and writing and causes them to use words as they learn, and males are better

In today’s day in age, different sexualities and gender identities are quickly becoming more accepted in mainstream society. Despite this change, there are many people who believe that having a different sexual orientation or gender identity is a choice that is frowned upon. In order to refute this belief, research and biology of the brain is necessary. Researching the brain on the basis of sexuality is a fairly new topic of discussion because it is somewhat difficult and confusing. This paper will explore the different identities of gender, sex and sexual orientation and the main biological reasons behind these. There is also some validity of different sexual orientations and identities through the evidence of sexual disorders like