My research interests are in experimental psychopathology related to fear extinction and Posttraumatic Stress Disorder. Specifically, I study the processes involved in learning and extinguishing fear, and the different factors than can influence this process in individuals with PTSD. These factors include genetics, sleep, stress hormones, sex differences, and various cognitive and behavioural factors. In addition, I have conducted research on the memory effects of experiencing cigarette cravings in applied settings, and research on the body image-related motivations for sports supplement use.

I currently have a new program of research investigating the effect of assistance/service dogs on quality of life in civilians and military veterans (and ex-veterans), a link to the study can be found here.

Areas of Expertise

  • Experimental psychopathology (fear conditioning, extinction and fear return)
  • Biomarkers of posttraumatic stress disorder (genetics, stress hormones, sex differences, sleep quality, cognition)


  1. & The BDNF Val66Met polymorphism moderates the relationship between Posttraumatic Stress Disorder and fear extinction learning. Psychoneuroendocrinology 91, 142-148.
  2. & Endogenous salivary α-amylase does not interact with skin conductance response during fear extinction in posttraumatic stress disorder. Psychiatry Research 262, 316-322.
  3. & Neural activity and emotional processing following military deployment: Effects of mild traumatic brain injury and posttraumatic stress disorder. Brain and Cognition 118, 19-26.
  4. & Negative appraisals and fear extinction are independently related to PTSD symptoms. Journal of Affective Disorders 217, 246-251.
  5. & Endogenous cortisol reactivity moderates the relationship between fear inhibition to safety signals and posttraumatic stress disorder symptoms. Psychoneuroendocrinology 78, 14-21.

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Career History

Start Date End Date Position Held Location
2017 2017 Lecturer University of Tasmania