• 1950 Citations
  • 22 h-Index

Research output per year

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Personal profile

Research interests

Anxiety and its related disorders; obsessive-compulsive disorder (OCD); hoarding and object attachment; substance use; exposure therapy; extinction learning; emotion regulation; science-based practice


I am the Deputy Director of the Centre for Emotional Health. Amongst other priorities, my specific objective within the CEH is to prepare world-ready HDR candidates and early career researchers. I help them to discover their long-term career plans and in developing and meeting goal posts that will help them achieve their aspirations.

In regard to research, my interests are within the field of clinical psychology. Broadly speaking, my aims are to discover what factors and processes contribute to the aetiology and maintenance of anxiety, obsessive-compulsive and related disorders, and substance use problems. I am interested in the role of both general (e.g., interpersonal difficulties and perceived distress intolerance) and disorder-specific factors (e.g., object attachment in hoarding disorder). Another aim of my research is to find solutions for improving treatment outcomes and decreasing relapse after treatment. Although behavioural and cognitive-behavioural treatments are effective at reducing a variety of unwanted behaviours, not all benefit and relapse is common.

I additionally hope to reduce overconsumption in Australia and throughout the world by using and adpating my research on hoarding disorder and addiction to fit the broader population.

Find out more about my research interests and lab at: http://www.psy.mq.edu.au/bsl/index.htm

Research student supervision

I routinely supervise both undergraduates and postgraduate students interested in topics related to my field of research. Importantly, many students enter my lab before the Honours year as a way to prepare themselves for their upcoming year of research. I also mentor postdoctoral fellows in their supervision of students by serving as a co-supervisor. 

Research engagement

In order to disseminate research broadly, each year I participate in a handful of media interviews and public discussions. As examples, in 2018, I published a piece in The Conversation on hoarding disorder and delivered an informal presentation on how to conquer fear and anxiety for Nerd Nite North Sydney. In 2019, I delivered a sold-out public talk (The Science of Hoarding) at the State Library of NSW for the Sydney Science Festival during National Science Week.  I am also actively involved in disseminating scientific knowledge creatively through non-research forums. For example, in 2019, I joined comedians Tom Ballard and Jordan Raskopoulos to discuss The Trauma Cleaner on Audible's What's the Story.


Community engagement

I am engaged in a number of activities within the community. For example, I am the current President for the Australian Association for Cognitive and Behaviour Therapy, a national professional body for health and other professionals interested in evidence-based behavioural and cognitive therapies. In 2017, I served as Convenor for its annual conference and from 2017-2019 served as Treasurer for the Association. I also serve on the Editorial Boards of Behaviour Research and Therapy, Behavior Therapy, and Current Opinion in Psychology and I review articles on an ad hoc basis for a number of other journals. I am also a member of the Sydney North Health Network Mental Health Advisory Committee.



I am responsible for teaching and convening PSY337 (Psychopathology) and PSYC987 (Child and Adult Psychopathology 1). I also teach on PSYC104 (Introduction to Psychology I), PSYC988 (Psychological Assessment and Child and Adult Psychopathology 2), and PSYC989 (Clinical Psychology Therapy 2).

Education/Academic qualification

Clinical Psychology, PhD, University of Wisconsin-Milwaukee

… → 2006

Clinical Psychology, MS, University of Wisconsin-Milwaukee

… → 2002

Psychology, BA, University of Nebraska–Lincoln

… → 1999

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Research Outputs

Open Access
  • Trait versus task-induced emotional reactivity and distress intolerance in hoarding disorder: transdiagnostic implications

    Norberg, M. M., Beath, A. P., Kerin, F. J., Martyn, C., Baldwin, P. & Grisham, J. R., Jan 2020, In : Behavior Therapy. 51, 1, p. 123-134 12 p.

    Research output: Contribution to journalArticle

  • 1 Citation (Scopus)

    A clinician's quick guide to evidence-based approaches: hoarding disorder

    Wootton, B. M., Worden, B. L., Norberg, M. M., Grisham, J. R. & Steketee, G., Mar 2019, In : Clinical Psychologist. 23, 1, p. 85-87 3 p.

    Research output: Contribution to journalArticle

    Applying attachment theory to indecisiveness in hoarding disorder

    Crone, C., Kwok, C., Chau, V. & Norberg, M. M., Mar 2019, In : Psychiatry Research. 273, p. 318-324 7 p.

    Research output: Contribution to journalArticle

  • 2 Citations (Scopus)

    Hoarding symptoms and workplace impairment

    Mathes, B. M., Henry, A., Schmidt, N. B. & Norberg, M. M., Sep 2019, In : British Journal of Clinical Psychology. 58, 3, p. 342-356 15 p.

    Research output: Contribution to journalArticle