Richard A. Bryant, PhD, is a Scientia Professor of Psychology at UNSW Sydney. Professor Bryant has researched posttraumatic stress disorder (PTSD) for over 30 years; his work has identified key genetic, neural, and psychological factors underpinning PTSD, and he has developed the world's leading screening tools for early identification of PTSD as well as the most commonly used early intervention protocols. Professor Bryant has published widely and served on DSM-5 and ICD-11 committees to define PTSD diagnoses. In 2016 he received the Companion of the Order of Australia, Australia's highest honor. He consults with international agencies on management of psychological responses to trauma and adversity.