In 1973, the American Psychiatric Association (APA) asked all members attending its convention to vote on whether they believed homosexuality to be a mental disorder. 5,854 psychiatrists voted to remove homosexuality from the DSM, and 3,810 to retain it.
The APA then compromised, removing homosexuality from the DSM but replacing it, in effect, with "sexual orientation disturbance" for people "in conflict with" their sexual orientation. Not until 1987 did homosexuality completely fall out of the DSM.
https://www.psychologytoday.com/blog/hide-and-seek/201509/when-homosexuality-stopped-being-mental-disorder
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Some APA members, primarily psychoanalysts who continued to espouse pathologizing views of homosexuality, challenged the leadership of the APA by calling for a referendum of the entire APA membership. The decision to remove homosexuality was upheld by a 58% majority of voting APA members.
When the diagnosis of homosexuality was deleted in 1973, the APA did not initially embrace a normal variant model of homosexuality (Drescher 1998, Bayer 1987, Krajeski 1996). In recognition of the opposition, it made a compromise. The DSM-II diagnosis of Sexual Orientation Disturbance (SOD) replaced Homosexuality. Accordingly, individuals comfortable with their homosexuality were no longer considered mentally ill. Only those who were "in conflict with" their sexual orientation had a mental disorder (SOD). This compromise engendered continued controversy. Those opposing it pointed out there were no reported cases of unhappy heterosexual individuals seeking treatment to become homosexual. This problem was addressed in the 1980's DSM-III where SOD was replaced by ego-dystonic homosexuality (EDH).
http://www.aglp.org/gap/1_history/
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Robert Spitzer, psikiater yang awalnya berhasil mengeluarkan diagnosis homosexual dari DSM, tapi juga kemudian melakukan penelitian untuk mengubah orientasi LGBT, namun karena serangan dari pihak LGBT, maka penelitiannya dianggap salah.
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In May 2001, Robert Spitzer presented Can Some Gay Men and Lesbians Change Their Sexual Orientation? 200 Participants Reporting a Change from Homosexual to Heterosexual Orientation", a study of attempts to change homosexual orientation through ex-gay ministries and conversion therapy, at the American Psychiatric Association's convention in New Orleans. The study was partly a response to the APA's 2000 statement cautioning against clinical attempts at changing homosexuality, and was aimed at determining whether such attempts were ever successful rather than how likely it was that change would occur for any given individual. Spitzer wrote that some earlier studies provided evidence for the effectiveness of therapy in changing sexual orientation, but that all of them suffered from methodological problems.[5]
https://en.wikipedia.org/wiki/Conversion_therapy#Can_Some_Gay_Men_and_Lesbians_Change_Their_Sexual_Orientation.3F
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Prof Dadang Hawari
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Prof Dadang tidak setuju jika homoseks dinilai bukan penyakit dan tidak bisa (tidak perlu) disembuhkan seperti diklaim Asosiasi Psikiater Amerika (APA). Tapi diakuinya, terapi homoseks relatif sulit maka pencegahan dini adalah yang terpenting. Dan, jurus paling kuat untuk mencegah adalah pendidikan agama sejak dini.
Dia mengatakan, pendekatan agama juga telah dilirik dan dibutktikan oleh para ilmuwan Barat seperti Dr Graf Remafedi dari Universitas Minnesota AS. Hal yang sama dilakukan para ilmuan yang tergabung dalam The National Association for Research and Therapy of Homosexuality (NARTH).
Prof Dadang mengaku cukup sering menangani kasus-kasus homoseksual. Kebanyakan pasiennya mengidap homoseksual sebagai ikutan dari penyakit mental Skizofrenia. Oleh karenanya, keberhasilan terapi sangat ditentukan oleh sejauhmana motivasi seorang penderita homoseksual. “Meski sulit, tak perlu putus asa. Nabi bersabda, setiap penyakit ada obatnya,” kata Guru Besar FKUI yang sudah menulis puluhan buku ini.
Metode terapinya, ujar Prof Dadang, meliputi terapi biologik (obat-obatan), psikologik (kejiwaan), sosial (adaptasi), dan spiritual (keagamaan, keimanan), yang disingkat menjadi terapi BPSS.
Namun, keberhasilan terapi juga bergantung pada kuat-lemahnya kadar homoseksual (100%, 75%, 50%, 25%), dan dukungan keluarga. Dia menambahkan, penderita juga harus dijauhkan dari materi-materi pornografi dan orang-orang homoseks.
“Jadi, organisasi homoseks harusnya tidak dibiarkan. Tapi, kita kalah dengan orang-orang yang selalu teriak HAM,” pungkas Prof Dadang
http://majalah.hidayatullah.com/2012/10/bisa-sembuh-asal-sungguh-sungguh/