My main research interests lie within the field of cognitive neuropsychiatry. Cognitive neuropsychiatry aims to apply the logic of cognitive neuropsychology in order to further our understanding of psychiatric symptoms. The psychiatric symptoms that are of primary interest to me are delusions, hallucinations, lack of insight and the poor social functioning that characterises schizophrenia. A number of theories have been proposed to explain delusions. One of these is the idea that some delusions, especially persecutory delusions in people with schizophrenia, reflect impairment of the normal capacity to appreciate other people's mental perspectives. I continue to investigate this "theory of mind" model of delusions and other cognitive factors implicated in delusions in order to inform the ongoing development of the ‘two-factor’ theory of delusions that I and my colleagues have been developing for a number of years. My other research interests include: visual cognition, in particular, the detection and orienting of attention in the direction of another person's gaze; various psychopathologies including autism and psychopathy; personality traits in the healthy population, in particular, schizotypy; and the broader disciplines of cognitive psychology and cognitive neuropsychology.