David works in the Faculty of Medicine, Nursing & Health Sciences at Monash University as a Professor of Psychological Medicine. He is also Clinical Director, Primary Care and General Hospital Consultation-Liaison Psychiatry at Southern Health, Monash Medical Centre. His particular interest and expertise is in the areas of depression, depression in the presence of physical illness, and psychological factors contributing to the physicall illness (or psychosomatics). His research has clearly defined subtypes of depression in the medically ill, in particular, identifying and describing the phenomena of demoralisation. He teaches psychiatry at undergraduate and postgraduate levels with his main interests being depression and somatisation. David has been the recipient of a number of research grants from the NHMRC with research focussing on the nature of distress and depression in the medically ill, demoralisation as a concept and a particular form of depression, the use of psychotherapy in the medically ill, and the nature of psychiatric presentations and pathways to care for people in the general medical and primary care settings, interventions for depression and distress in the medically ill, integrated and holistic models of chronic disease management, and hypochondriasis in primary care and in the community. Professor Clarke has over 100 publications in scientific journals and presents his work regularly at conferences.