I am a philosopher of mind and cognitive science, with a particular interest in the nature of consciousness. I am currently Professor of Philosophy at Monash University (Melbourne), having taught previously at Macquarie University, the University of Western Ontario, the University of Manchester and the University of Oxford. I am the author of The Unity of Consciousness (2010) and Thought: A Very Short Introduction (2013), and an editor of Delusion and Self-Deception(2008), The Oxford Companion to Consciousness (2009) and Cognitive Phenomenology (2011).

My current research concerns the measurement of consciousness, and whether it is possible to build a consciousness meter. Other research interests include the nature of conscious thought, disorders of consciousness and taxonomy in psychiatry. I am a member of the CIFAR Brain, Mind and Consciousness program.