Supporters of the WikiLeaks founder say the court decision could have profound implications for press freedom.
Stella Moris tweeted US President Donald Trump on Thanksgiving,appealing to him to pardon the WikiLeaks founder.
The London-based Australian author,a friend of Julian Assange's,says his diagnosis did not surprise her,but it is significant.
The four weeks Julian Assange spent in the Old Bailey courtroom in London are the latest chapter in the Australian's epic battle against extradition to the US.
"Julian needs his freedom and our democracy needs a free press,"the WikiLeaks founder's fiancee said.
The anonymous witnesses claimed there was a plot to kidnap and poison Assange and detailed a widespread surveillance operation inside the Ecuadorian embassy.
The London judge deciding on the Australian's extradition to the US has agreed to hear two Spanish witnesses in secret regarding an alleged plot reportedly linked to the CIA.
Before attending court,the Chinese artist posted a photograph of himself and his son both wearing Free Assange T-shirts.
The Trump administration wants Assange to be tried in the US on 18 spying charges over cables published by the Australian's WikiLeaks website a decade ago.
Seena Fazel,a professor in forensic psychiatry at Oxford University,said that Assange is only"moderately depressed".
Michael Kopelman,emeritus professor of neuropsychiatry at King’s College London said he had visited the Wikileaks founder in Belmarsh Prison about 20 times.