In particular, he is interested in understanding the role of sleep in the development, maintenance and treatment of post-traumatic stress disorder and emotional disorder. His research has been funded by many sources, including National Health and Medical Research Council, National Institutes of Health, National Science Foundation, US Department of Defense and industry. Dr Drummond's clinical expertise lies in the treatment of behavioral sleep disorders, such as insomnia and chronic nightmares, and emotional disorders, such as depression and bipolar disorder. Research area keywords Posttraumatic Stress Disorder (PTSD)Sleepbehaviouralcognitiondecision makingfunctional MRIinsomniamood disorderssleep deprivationsleep medicine