Hoarding Disorder

What is Hoarding Disorder?

Hoarding disorder (HD) is characterised by difficulty discarding possessions, resulting in excessive clutter that interferes with the individual’s capacity to use active living areas within their house as intended

What is this research about?

Associate Professor Jessica Grisham’s research on Hoarding Disorder includes a study delineating key differences between hoarding and Obsessive Compulsive Disorder (OCD), as well as the first laboratory study of neuropsychological impairment associated with hoarding. Jessica is currently interested in deficits in self-regulation in hoarding disorder, as well as how emotions affect decision-making among individuals with hoarding difficulties and the role of impaired distress tolerance. She is also interested in developing computerised and online interventions for HD.

Research students involved:

Peter Baldwin: Peter’s research focuses on hoarding disorder, specifically the psychological and physiological mechanisms of decision-making in hoarding disorder. By identifying and targeting these mechanisms Peter hopes to better understand how the disorder develops and how we can improve treatment outcomes.

Recent publications relating to this research:

Baldwin, P.A., Whitford, T. J., & Grisham, J. R. (2016). The relationship between hoarding symptoms, intolerance of uncertainty, and error-related negativity. Journal of Psychopathology and Behavioral Assessment. doi:10.1007/s10862-016-9577-3

Norberg, M.M., Keyan, D., & Grisham, J.R. (2015). Mood influences the relationship between distress intolerance and discarding. Journal of Obsessive-Compulsive and Related Disorders, 6, 77-82.

Grisham, J.R. & Baldwin, P. A. (2015). Neuropsychological and neurophysiological insights into hoarding disorder.  Neuropsychiatric Disease and treatment, 11, 951-962

Grants awarded


Sole Chief Investigator, UNSW Dean’s Carers Fellowship, Neuropsychological Functioning in Compulsive Hoarding.

Research Participation:

The Grisham Lab often recruits research participants in their studies. If you are interested, contact the Grisham Lab.

If you are interested in participating in psychological research regarding Hoarding Disorder, please register your interest via the Grisham Lab.