Part 15

So, how can we tell whether our sexual role is mostly in our blood or in our brains?

The scrutiny of borderline cases of human sexuality - notably the transgendered or intersexed - can yield clues as to the distribution and relative weights of biological, social, and psychological determinants of gender identity formation.

The results of a study conducted by Uwe Hartmann, Hinnerk Becker, and Claudia Rueffer-Hesse in 1997 and titled "Self and Gender: Narcissistic Pathology and Personality Factors in Gender Dysphoric Patients", published in the "International Journal of Transgenderism", "indicate significant psychopathological aspects and narcissistic dysregulation in a substantial proportion of patients." Are these "psychopathological aspects" merely reactions to underlying physiological realities and changes? Could social ostracism and labeling have induced them in the "patients"?

The authors conclude:

"The cumulative evidence of our study ... is consistent with the view that gender dysphoria is a disorder of the sense of self as has been proposed by Beitel (1985) or PfÑfflin (1993). The central problem in our patients is about identity and the self in general and the transsexual wish seems to be an attempt at reassuring and stabilizing the self-coherence which in turn can lead to a further destabilization if the self is already too fragile. In this view the body is instrumentalized to create a sense of identity and the splitting symbolized in the hiatus between the rejected body-self and other parts of the self is more between good and bad objects than between masculine and feminine."

Freud, Kraft-Ebbing, and Fliess suggested that we are all bisexual to a certain degree. As early as 1910, Dr. Magnus Hirschfeld argued, in Berlin, that absolute genders are "abstractions, invented extremes". The consensus today is that one's sexuality is, mostly, a psychological construct which reflects gender role orientation.

Joanne Meyerowitz, a professor of history at Indiana University and the editor of The Journal of American History observes, in her recently published tome, "How Sex Changed: A History of Transsexuality in the United States", that the very meaning of masculinity and femininity is in constant flux.

Transgender activists, says Meyerowitz, insist that gender and sexuality represent "distinct analytical categories". The New York Times wrote in its review of the book: "Some male-to-female transsexuals have sex with men and call themselves homosexuals. Some female-to-male transsexuals have sex with women and call themselves lesbians. Some transsexuals call themselves asexual."

So, it is all in the mind, you see.

This would be taking it too far. A large body of scientific evidence points to the genetic and biological underpinnings of sexual behavior and preferences.

The German science magazine, "Geo", reported recently that the males of the fruit fly "drosophila melanogaster" switched from heterosexuality to homosexuality as the temperature in the lab was increased from 19 to 30 degrees Celsius. They reverted to chasing females as it was lowered.

The brain structures of homosexual sheep are different to those of straight sheep, a study conducted recently by the Oregon Health & Science University and the U.S. Department of Agriculture Sheep Experiment Station in Dubois, Idaho, revealed. Similar differences were found between gay men and straight ones in 1995 in Holland and elsewhere. The preoptic area of the hypothalamus was larger in heterosexual men than in both homosexual men and straight women.

According an article, titled "When Sexual Development Goes Awry", by Suzanne Miller, published in the September 2000 issue of the "World and I", various medical conditions give rise to sexual ambiguity. Congenital adrenal hyperplasia (CAH), involving excessive androgen production by the adrenal cortex, results in mixed genitalia. A person with the complete androgen insensitivity syndrome (AIS) has a vagina, external female genitalia and functioning, androgen-producing, testes - but no uterus or fallopian tubes.

People with the rare 5-alpha reductase deficiency syndrome are born with ambiguous genitalia. They appear at first to be girls. At puberty, such a person develops testicles and his clitoris swells and becomes a penis. Hermaphrodites possess both ovaries and testicles (both, in most cases, rather undeveloped). Sometimes the ovaries and testicles are combined into a chimera called ovotestis.

Most of these individuals have the chromosomal composition of a woman together with traces of the Y, male, chromosome. All hermaphrodites have a sizable penis, though rarely generate sperm. Some hermaphrodites develop breasts during puberty and menstruate. Very few even get pregnant and give birth.

Anne Fausto-Sterling, a developmental geneticist, professor of medical science at Brown University, and author of "Sexing the Body", postulated, in 1993, a continuum of 5 sexes to supplant the current dimorphism: males, merms (male pseudohermaphrodites), herms (true hermaphrodites), ferms (female pseudohermaphrodites), and females.

Intersexuality (hermpahroditism) is a natural human state. We are all conceived with the potential to develop into either sex. The embryonic developmental default is female. A series of triggers during the first weeks of pregnancy places the fetus on the path to maleness.

In rare cases, some women have a male's genetic makeup (XY chromosomes) and vice versa. But, in the vast majority of cases, one of the sexes is clearly selected. Relics of the stifled sex remain, though. Women have the clitoris as a kind of symbolic penis. Men have breasts (mammary glands) and nipples.

The Encyclopedia Britannica 2003 edition describes the formation of ovaries and testes thus:

"In the young embryo a pair of gonads develop that are indifferent or neutral, showing no indication whether they are destined to develop into testes or ovaries. There are also two different duct systems, one of which can develop into the female system of oviducts and related apparatus and the other into the male sperm duct system. As development of the embryo proceeds, either the male or the female reproductive tissue differentiates in the originally neutral gonad of the mammal."

Yet, sexual preferences, genitalia and even secondary sex characteristics, such as facial and pubic hair are first order phenomena. Can genetics and biology account for male and female behavior patterns and social interactions ("gender identity")? Can the multi-tiered complexity and richness of human masculinity and femininity arise from simpler, deterministic, building blocks?

Sociobiologists would have us think so.

For instance: the fact that we are mammals is astonishingly often overlooked. Most mammalian families are composed of mother and offspring. Males are peripatetic absentees. Arguably, high rates of divorce and birth out of wedlock coupled with rising promiscuity merely reinstate this natural "default mode", observes Lionel Tiger, a professor of anthropology at Rutgers University in New Jersey. That three quarters of all divorces are initiated by women tends to support this view.

Furthermore, gender identity is determined during gestation, claim some scholars.

Milton Diamond of the University of Hawaii and Dr. Keith Sigmundson, a practicing psychiatrist, studied the much-celebrated John/Joan case. An accidentally castrated normal male was surgically modified to look female, and raised as a girl but to no avail. He reverted to being a male at puberty.

His gender identity seems to have been inborn (assuming he was not subjected to conflicting cues from his human environment). The case is extensively described in John Colapinto's tome "As Nature Made Him: The Boy Who Was Raised as a Girl".

HealthScoutNews cited a study published in the November 2002 issue of "Child Development". The researchers, from City University of London, found that the level of maternal testosterone during pregnancy affects the behavior of neonatal girls and renders it more masculine. "High testosterone" girls "enjoy activities typically considered male behavior, like playing with trucks or guns". Boys' behavior remains unaltered, according to the study.

Yet, other scholars, like John Money, insist that newborns are a "blank slate" as far as their gender identity is concerned. This is also the prevailing view. Gender and sex-role identities, we are taught, are fully formed in a process of socialization which ends by the third year of life. The Encyclopedia Britannica 2003 edition sums it up thus: