Mocellin works with text, sound installation, performance and site specific projects.
Her work is based on issues of identity and human relationships.
In 1984 she moved to London, where she attended the Chelsea School of Art.
She was a founding member of the ARC Group along with Shahin Afrassiabi, Emma Holmes, Gideon London, Lennie Lee, David Miles, Nicola Pellegrini, João Quintino, Nicola Reece, Andrew Stockwell and Emanuelle Waeckerle.
She represented Italy for the PS1 International Studio Program In New York in 2001/2002.