Gender dysphoria (GD) is the distress a person experiences due to a mismatch between their gender identity—their personal sense of their own gender—and their sex assigned at birth. The term replaced the previous diagnostic label of gender identity disorder (GID) in 2013 with the release of the diagnostic manual DSM-5. The condition was renamed to remove the stigma associated with the term disorder.
Gender identity is the personal sense of one's own gender. Gender identity can correlate with a person's assigned sex or can differ from it. In most individuals, the various biological determinants of sex are congruent, and consistent with the individual's gender identity. Gender expression typically reflects a person's gender identity, but this is not always the case. While a person may express behaviors, attitudes, and appearances consistent with a particular gender role, such expression may not necessarily reflect their gender identity. The term gender identity was coined by psychiatry professor Robert J. Stoller in 1964 and popularized by the controversial psychologist John Money.
Harry Benjamin was a German-American endocrinologist and sexologist, widely known for his clinical work with transgender people.
Pornography addiction is the scientifically controversial application of an addiction model to the use of pornography. Pornography may be part of compulsive sexual behavior with negative consequences to one's physical, mental, social, or financial well-being. While the World Health Organization's ICD-11 (2022) has recognized compulsive sexual behaviour disorder (CSBD) as an "impulsive control disorder", CSBD is not an addiction, and the American Psychiatric Association's DSM-5 (2013) and the DSM-5-TR (2022) do not classify compulsive pornography consumption as a mental disorder or a behavioral addiction.
John Michael Bailey is an American psychologist, behavioral geneticist, and professor at Northwestern University best known for his work on the etiology of sexual orientation and paraphilia. He maintains that male sexual orientation is most likely established in utero.
A sexual minority is a group whose sexual identity, orientation or practices differ from the majority of the surrounding society. Primarily used to refer to lesbian, gay, bisexual, or non-heterosexual individuals, it can also refer to transgender, non-binary or intersex individuals.
The Man Who Would Be Queen: The Science of Gender-Bending and Transsexualism is a 2003 book by the American psychologist J. Michael Bailey, published by Joseph Henry Press.
Androphilia and gynephilia are terms used in behavioral science to describe sexual orientation, as an alternative to a gender binary homosexual and heterosexual conceptualization. Androphilia describes sexual attraction to men and/or masculinity; gynephilia describes the sexual attraction to women and/or femininity. Ambiphilia describes the combination of both androphilia and gynephilia in a given individual, or bisexuality.
Ray Milton Blanchard is an American-Canadian sexologist, best known for his research studies on pedophilia, sexual orientation and gender identity. He found that men with more older brothers are more likely to be gay than men with fewer older brothers, a phenomenon he attributes to the reaction of the mother's immune system to male fetuses. Blanchard has also published research studies on phallometry and several paraphilias, including autoerotic asphyxia.
American-Canadian sexologist Ray Blanchard proposed a psychological typology of gender dysphoria, transsexualism, and fetishistic transvestism in a series of academic papers through the 1980s and 1990s. Building on the work of earlier researchers, including his colleague Kurt Freund, Blanchard categorized trans women into two groups: homosexual transsexuals who are attracted exclusively to men and are feminine in both behavior and appearance; and autogynephilic transsexuals who experience sexual arousal at the idea of having a female body (autogynephilia). Blanchard and his supporters argue that the typology explains differences between the two groups in childhood gender nonconformity, sexual orientation, history of sexual fetishism, and age of transition.
Gender incongruence is the state of having a gender identity that does not correspond to one's sex assigned at birth. This is experienced by people who identify as transgender or transsexual, and often results in gender dysphoria. The causes of gender incongruence have been studied for decades.
Sexuality in transgender individuals encompasses all the issues of sexuality of other groups, including establishing a sexual identity, learning to deal with one's sexual needs, and finding a partner, but may be complicated by issues of gender dysphoria, side effects of surgery, physiological and emotional effects of hormone replacement therapy, psychological aspects of expressing sexuality after medical transition, or social aspects of expressing their gender.
The Sex Orientation Scale (SOS) was Harry Benjamin's attempt to classify and understand various forms and subtypes of transvestism and transsexualism in biological males, published in 1966. It was a seven-point scale ; it was analogous to the Kinsey Scale as it relates to sexual orientation, which also had seven categories. Much like Kinsey's understanding of sexual orientation, Benjamin understood the nature of gender identity and gender expression not as a discrete scale, but as a spectrum, a continuum with many variations. However the Benjamin scale does not reflect a modern understanding of gender identity and is not useful as a contemporary diagnostic tool, especially due to its conflation of gender identity with sexual orientation.
Ira Basil Pauly is an American psychiatrist who was an All American college football player at UCLA, and is known for his influential work on transsexualism.
Stephen Barrett Levine is an American psychiatrist known for his work in human sexuality, particularly sexual dysfunction and transsexualism.
A transgender person is someone whose gender identity differs from that typically associated with the sex they were assigned at birth. Some transgender people who desire medical assistance to transition from one sex to another identify as transsexual. Transgender is an umbrella term; in addition to including people whose gender identity is the opposite of their assigned sex, it may also include people who are non-binary or genderqueer. Other definitions of transgender also include people who belong to a third gender, or else conceptualize transgender people as a third gender. The term transgender may be defined very broadly to include cross-dressers.
Transsexual people experience a gender identity that is inconsistent with their assigned sex, and desire to permanently transition to the sex or gender with which they identify, usually seeking medical assistance to help them align their body with their identified sex or gender.
Anne Alexandra Lawrence is an American psychologist, sexologist, and former anesthesiologist who has published extensively on gender incongruence.
Gender and sexual diversity (GSD), or simply sexual diversity, refers to all the diversities of sex characteristics, sexual orientations and gender identities, without the need to specify each of the identities, behaviors, or characteristics that form this plurality.
