
ALT The image is of an infographic vertical timeline, at the top the title states 'DSM & homosexuality', the subhead states 'The American Psychiatric Association (APA) Diagnostic and Statistical Manual of Mental Disorders (DSM) lists the diagnostic criteria for mental health conditions.' Timeline dates are on the left and descriptors on the right of a vertical line. The first date is 1952 and the first descriptor is 'DSM-I': The 'sexual deviation' category (within the 'sociopathic personality disturbance' category) includes homosexuality, transvestism, paedophilia, fetishism, and sexual sadism. The second date is 1968 and the second descriptor is 'DSM-II': 'Sexual deviation' category now listed under 10 individual diagnostic codes; homosexuality was included as it's own code. DSM-I had ambiguity about whether homosexuality was a mental disorder - DSM-II removed that ambiguity. Further descriptors of the timeline are in the alt-text of photos attached to following tweets.

ALT This image is of the bottom part of the timeline, with the final four dates & sources. The fifth date is 1980 and the fifth descriptor is 'DSM-III': DSM-III renames 'sexual orientation disorder' to 'ego-dystonic homosexuality' - defined as a desire to be heterosexual but not experiencing heterosexual arousal, or experiencing unwanted or distressing homosexual arousal. A note was added about a potential contributing factor of internalised homophobia. 'Ego-dystonic homosexuality' and it's predecessor 'sexual orientation disturbance' both legitimised conversion therapies. The sixth date is 1987 and the sixth header is 'DSM-III-R': Ego-dystonic homosexuality removed & 'persistent and marked distress about one's sexual orientation' was an example added to 'sexual disorder not otherwise specified'. Cont'd on final tweet.

ALT Image is a blank black background, included due to character limit on alt-text. Remaining text from image in tweet 5 below: The seventh date is 1994 & 2000 and the seventh heading is 'DSM-IV/DSM-IV-TR': DSM-IV (1994) & DSM-IV-TR (2000) - no changes made to 'sexual disorder not otherwise specified' in these editions. The eighth date is 2013 and the eighth heading is 'DSM-5': No diagnostic criteria that can be applied to people based on their sexual orientation. At the bottom right of the timeline the text says @AmbertheOT, the bottom left of the timeline has sources listed as follows: Sources: APA; APA DSM prev. editions; Wikipedia; Scientific Controversies; JSTOR; Psychology Today; NY Times; QueerBio

















