Matthew is a clinical and academic psychiatrist, working in the both the university and in the NHS. He completed his PhD in 2008 at the Institute of Psychiatry, King's College London, and his research has focused on the prodromal phase of schizophrenia and the formation of delusions, using primarily functional neuroimaging and cognitive psychology and has published both empirical and philosophical work in psychiatry. Whilst a trainee psychiatrist, he and colleagues set up the Maudsley Philosophy Group and together they edited The Maudsley Reader in Phenomenological Psychiatry (CUP, 2013). He is series editor for the International Perspectives in Philosophy and Psychiatry book series (OUP) and an Associate and Handling Editor for the British Journal of Psychiatry. From 2008-12 he was Chair of the Philosophy Special Interest Group at the Royal College of Psychiatrists. With Giovanni Stanghellini, he is currently co-editing the Oxford Handbook in Phenomenological Psychopathology for OUP.