Alternative Factor Models and Heritability of the Short Leyton Obsessional Inventory-Children's Version

An alternative models framework was used to test three confirmatory factor analytic models for the Short Leyton Obsessional Inventory-Children's Version (Short LOI-CV) in a general population sample of 517 young adolescent twins (11-16 years). A one-factor model as implicit in current classification systems of Obsessive-Compulsive Disorder (OCD), a two-factor obsessions and compulsions model, and a multidimensional model corresponding to the three proposed subscales of the Short LOI-CV (labelled Obsessions/Incompleteness, Numbers/Luck and Cleanliness) were considered. The three-factor model was the only model to provide an adequate explanation of the data. Twin analyses suggested significant quantitative sex differences in heritability for both the Obsessions/Incompleteness and Numbers/Luck dimensions with these being significantly heritable in males only (heritability of 60% and 65% respectively). The correlation between the additive genetic effects for these two dimensions in males was 0.95 suggesting they largely share the same genetic risk factors.

The Queen's Shilling:A collaboration with Goldin+Senneby

A performance art piece in the Centre for Contemporary Art, Derry/Londonderry as part of the City of Culture. International conceptual artists Goldin+Senneby commissioned me to write a short play inspired by their obsessions with alchemy, royalty and the financial markets. The play dramatises the suffering of Queen Elizabeth II as she confronts her own mortality in a world where she is an immortal symbol. Through a conversation with her predecessor Elizabeth I, she reveals that the whole stability of the financial system rests on the weight of her daily effluvia.