1. Joseph Nicolosi was an American clinical psychologist who advocated and practised "reparative therapy", a form of the pseudoscientific treatment of conversion therapy that he claimed could help people overcome or mitigate their homosexual desires and replace them with heterosexual ones.
Joseph Nicolosi was an advisor to, and officer of, NARTH.
Joseph Nicolosi described his ideas in Reparative Therapy of Male Homosexuality: A New Clinical Approach and three other books.
Joseph Nicolosi proposed that homosexuality is often the product of a condition he described as gender-identity deficit caused by an alienation from, and perceived rejection by, formative individuals of the subject's gender which interrupts normal masculine or feminine identification process.
At the conference, Joseph Nicolosi performed "therapy" on a man live in front of the audience, a sight Patrick Strudwick described as "like I was watching a blood sport".
Joseph Nicolosi was named as a plaintiff in a lawsuit challenging the law on constitutional grounds but the law, effectively barring Joseph Nicolosi's clinic from taking on patients under the age of 18, was upheld.
In 2013, Joseph Nicolosi appeared in Stephen Fry's television documentary Stephen Fry: Out There, which examined different attitudes to homosexuality.
From 2013, protests were raised in Spain over the sale of three of Joseph Nicolosi's books titled: I Want to Stop Being Gay, How to Prevent Homosexuality, and Gender Confusion in Childhood.
Joseph Nicolosi died in March 2017 at the age of 70 from flu complications.
Throckmorton wrote that "Joseph Nicolosi never took him up on the offer" and that Bailey confirmed the offer was still open.