Overview
Background
Professor Nadeeka Dissanayaka is a UQ Amplify Professorial Research Fellow. She is founder and director of the Dementia & Neuro Mental Health Research Unit at the University of Queensland Centre for Clinical Research. She is also the director of the UQ Dementia Friendly University Initiative. Her expertise include multidisciplinary areas ranging from basic science (eg: pharmacology, genetics, cognitive neuroscience, neuroimaging) to clinical science and medicine (eg: psychology, psychiatry, neurology, clinical trials and implementation science).
Ageing, Mental Health, and Neurodegenerative diseases such as Dementia and Parkinson's disease are key areas of Prof. Dissanayaka's research. Her primary research themes include:
1. Evaluation and Treatment of Behavioural and Psychological Symptoms in Dementia (BPSD), with a special focus on anxiety and depression.
2. Development of a Mental Health Benchmarking Industry Specific Tool for Residential Aged Care (MHICare Project)
3. Pychotherapeutic Interventions including artificial intelligence, virtual reality and telehealth guided by biofeedback systems for persons with cognitive impairment and Parkinson's disease
4. Neuropsychiatric Manifestations in Parkinson's disease including anxiety, depression, cognitive dysfunction, sleep and impulse control disorders.
5. Neurobiological Underpinnings of Cognitive and Emotional Impairment in Dementia and Parkinson's disease (neuroimaging studies) and drug repurposing.
Availability
- Professor Nadeeka Dissanayaka is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Bachelor (Honours) of Science (Advanced), The University of Queensland
- Doctor of Philosophy, The University of Queensland
Research interests
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New diagnostic methods to identify anxiety in dementia and Parkinson's disease
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Neuroimaging (EEG and fMRI) and psychophysiological markers
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New psychological treatments using innovative technologies such as telehealth, virtual reality and mobile phones
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Novel psychosocial interventions in residential aged care facilities
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Adverse effects of pharmacological treatment including prescription of psychotropic medication in elderly
Research impacts
Research: Professor Dissanayaka's research is delivering measurable improvements in the diagnosis, treatment, and management of cognitive and emotional health conditions in older adults. Through nationally funded research programs, she is addressing critical gaps in the early detection of dementia in Parkinson's disease and expanding access to evidence-based psychological therapies through innovative digital and technology-assisted approaches.
Her research has led to the development of novel clinical tools, including the Parkinson's Disease-Specific Anxiety Inventory (PDSAI), which supports the identification and management of anxiety in Parkinson's disease. She has also developed and evaluated new psychotherapeutic interventions and technology-enabled models of care that improve mental wellbeing, independence, and quality of life for people living with dementia and Parkinson's disease.
By working closely with consumers, health services, aged care providers, and industry partners, Professor Dissanayaka ensures that research findings are translated into practical solutions that strengthen clinical practice, enhance aged care services, and support better outcomes for patients and families. Her programs have secured substantial competitive funding (including NHMRC and MRFF grants) and continue to drive innovation in digital health, virtual reality, telehealth, and mental health care for ageing populations. Her contributions have been recognised through numerous prestigious awards for research excellence, leadership, and research training.
Training: Professor Dissanayaka has made a significant contribution to research capacity building through the supervision and mentorship of students, trainees, and early and mid- career researchers across psychology, medicine, public health, pharmacy, and biomedical sciences. Through her commitment to interdisciplinary training and research excellence, she is helping to develop the next generation of clinician-scientists, healthcare professionals, and research leaders.
Community: As a strong advocate for research translation, Professor Dissanayaka's work has influenced the development of new diagnostic pathways, psychotherapeutic interventions, and technology-enabled models of care that support patients, families, clinicians, and aged care providers. Her research informs clinical practice, health service innovation, and policy development, contributing to better mental health, cognitive health, and quality of life for older people. Through strategic partnerships and research translation initiatives, Professor Dissanayaka is advancing evidence-based innovations that influence clinical practice, healthcare policy, and service delivery, generating meaningful benefits for ageing populations, healthcare systems, and communities worldwide.
Works
Search Professor Nadeeka Dissanayaka’s works on UQ eSpace
2015
Journal Article
Anxiety rating scales in Parkinson's disease: a critical review updating recent literature
Dissanayaka, Nadeeka N. W., Torbey, Elizabeth and Pachana, Nancy A. (2015). Anxiety rating scales in Parkinson's disease: a critical review updating recent literature. International Psychogeriatrics, 27 (11), 1777-1784. doi: 10.1017/S1041610215000885
2015
Conference Publication
Mindfulness to combat anxiety in people with Parkinson's disease
Pachana, N. A., Dissanayaka, N. N., Jion, F. I., Harnett, P. and O'Sullivan, J. (2015). Mindfulness to combat anxiety in people with Parkinson's disease. Balancing Cure with Care: Advances in Late Life Mental Health, 17th IPA International Congress, Berlin, Germany, 13-16 October 2015. Cambridge, United Kingdom: Cambridge University Press.
2015
Conference Publication
Neuropsychiatric aspects of Parkinson's disease
Mosley, P. E., Marsh, R., Dissanayaka, N., Subramanian, H., Carter, A., Hall, W., Coyne, T. and Silburn, P. (2015). Neuropsychiatric aspects of Parkinson's disease. Royal Australian and New Zealand College of Psychiatrists 2015 Congress, Brisbane, QLD, Australia, 3-7 May 2015. London, United Kingdom: Sage Publications. doi: 10.1177/0004867415578344
2015
Journal Article
Depression rating scales in Parkinson's disease: A critical review updating recent literature
Torbey, Elizabeth, Pachana, Nancy A. and Dissanayaka, Nadeeka N. W. (2015). Depression rating scales in Parkinson's disease: A critical review updating recent literature. Journal of Affective Disorders, 184 (Art No.: 7495) 7495, 216-224. doi: 10.1016/j.jad.2015.05.059
2015
Conference Publication
Mindfulness to combat anxiety in people with Parkinson’s disease
Dissanayaka, N., Idu Jion, F., Harnett, P., O'Sullivan, J. and Pachana, N. (2015). Mindfulness to combat anxiety in people with Parkinson’s disease. 17th International Psychogeriatric Association International Congress, Berlin, Germany, 13-16 October 2015.
2015
Journal Article
Characteristics and Treatment of Anxiety Disorders in Parkinson's Disease
Dissanayaka, Nadeeka N. W., White, Elizabeth, O'Sullivan, John D., Marsh, Rodney, Silburn, Peter A., Copland, David A., Mellick, George D. and Byrne, Gerard J. (2015). Characteristics and Treatment of Anxiety Disorders in Parkinson's Disease. Movement Disorders Clinical Practice, 2 (2), 155-162. doi: 10.1002/mdc3.12157
2014
Journal Article
The clinical spectrum of anxiety in Parkinson's disease
Dissanayaka, Nadeeka N. N. W., White, Elizabeth, O'Sullivan, John D., Marsh, Rodney, Pachana, Nancy A. and Byrne, Gerard J. (2014). The clinical spectrum of anxiety in Parkinson's disease. Movement Disorders, 29 (8), 967-975. doi: 10.1002/mds.25937
2014
Conference Publication
Electrophysiological markers enhancing diagnostic accuracy of depression and cognitive dysfunction in Parkinson’s disease
Dissanayaka, N., Au, T., Angwin, A., O'Sullivan, J., Byrne, G., Silburn, P., Marsh, R., Mellick, G. and Copland, D. (2014). Electrophysiological markers enhancing diagnostic accuracy of depression and cognitive dysfunction in Parkinson’s disease. 23rd Annual RBWH Health Care Symposium, Brisbane, Australia, 13-17 October 2014.
2014
Conference Publication
Cognitive and Emotional processing in Parkinson’s disease
Dissanayaka, N., Au, T., Angwin, A., O'Sullivan, J., Byrne, G., Silburn, P., Marsh, R., Mellick, G. and Copland, D. (2014). Cognitive and Emotional processing in Parkinson’s disease. 12th International Conference on Cognitive Neurosicence, Brisbane, QLD Australia, 27-31 July 2014.
2014
Conference Publication
An event-related potential study on sentence processing in Parkinson’s disease
Angwin, A., Dissanayaka, N., McMahon, K., Silburn, P. and Copland, D. (2014). An event-related potential study on sentence processing in Parkinson’s disease. 12th International Conference on Cognitive Neurosicence, Brisbane, Australia, 27-31 July 2014.
2014
Conference Publication
Negative biases and slow negative wave in Parkinson’s disease
Au, T., Angwin, A., Copland, D., O'Sullivan, J., Byrne, G., Silburn, P., Marsh, R., Mellick, G. and Dissanayaka, N. (2014). Negative biases and slow negative wave in Parkinson’s disease. 12th International Conference on Cognitive Neurosicence, Brisbane, QLD Australia, 27-31 July 2014.
2014
Conference Publication
Symptomatology and treatment of anxiety in Parkinson’s disease
White, E., Byrne, G., O'Sullivan, J., Marsh, R., Silburn, P., Pachana, N., Mellick, G., Copland, D. and Dissanayaka, N. (2014). Symptomatology and treatment of anxiety in Parkinson’s disease. In: School of Medicine, The University of Queensland Annual Student Symposium, Brisbane, QLD Australia, (). 2014.
2014
Conference Publication
Depression and anxiety measures in Parkinson’s disease: which are best?
Torbey, E., Dissanayaka, N. and Pachana, N. (2014). Depression and anxiety measures in Parkinson’s disease: which are best?. 20th Australian Psychological Society Clinical Neuropsychology Conference, Adelaide, SA Australia, 27-29 November 2014.
2013
Journal Article
Clinical issues in the treatment of anxiety and depression in older adults with Parkinson's disease
Pachana, Nancy A., Egan, Sarah J., Laidlaw, Ken, Dissanayaka, Nadeeka, Byrne, Gerard J., Brockman, Simone, Marsh, Rodney and Starkstein, Sergio (2013). Clinical issues in the treatment of anxiety and depression in older adults with Parkinson's disease. Movement Disorders, 28 (14), 1930-1934. doi: 10.1002/mds.25689
2013
Conference Publication
Patient perspectives on treatment-induced impulse control disorders
Carter, Adrian, Bell, Peter, Diezel, Helene, Dissanayaka, Nadeeka, O'Sullivan, John and Hall, Wayne (2013). Patient perspectives on treatment-induced impulse control disorders. Australasian Professional Society on Alcohol and other Drugs Conference, Brisbane, QLD Australia, 24-27 November 2013. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing Ltd.. doi: 10.1111/dar.12077
2013
Conference Publication
Drug-induced compulsive disorders: clinical, ethical and legal challenges
Carter, Adrian, O'Sullivan, John, Dissanayaka, Nadeeka, Bartlett, Francesca, Hall, Wayne and Bell, Peter (2013). Drug-induced compulsive disorders: clinical, ethical and legal challenges. Australasian Professional Society on Alcohol and other Drugs Conference, Brisbane, QLD Australia, 24-27 November 2013. Chichester, West Sussex, United Kingdom: Wiley-Blackwell Publishing Ltd.. doi: 10.1111/dar.12077
2013
Conference Publication
Emotional processing in Parkinson's disease and anxiety: an EEG study of visual affective word processing
Dissanayaka, N., Au, T., Angwin, A., O’Sullivan, J., Byrne, G., Silburn, P., Marsh, R., Mellick, G. and Copland, D. (2013). Emotional processing in Parkinson's disease and anxiety: an EEG study of visual affective word processing. BaCI 2013: First International Conference on Basic and Clinical Multimodal Imaging, Geneva, Switzerland, 5-8 September, 2013. Thousand Oaks, CA, United States: Sage Publications. doi: 10.1177/1550059413507209
2013
Conference Publication
Clinical implications of impulse control disorders in Parkinson's disease
O'Sullivan, John and Dissanayaka, Nadeeka (2013). Clinical implications of impulse control disorders in Parkinson's disease. APSAD 2013: Australasian Professional Society on Alcohol and other Drugs Conference, Brisbane, Australia, 24-27 November 2013. Chichester, West Sussex, United Kingdom: Wiley-Blackwell.
2013
Conference Publication
Identifying EEG markers associated with anxiety in Parkinson's disease: late positive potential
Dissanayaka, N. N., Au, T., Angwin, A., Copland, D., O'Sullivan, J., Byrne, G. J., Marsh, R., Mellick, G. and Silburn, P. A. (2013). Identifying EEG markers associated with anxiety in Parkinson's disease: late positive potential. MDS 2013: 17th International Congress of Parkinson’s Disease and Movement Disorders, Sydney, NSW, Australia, 16-20 June, 2013. Hoboken, NJ, United States: John Wiley & Sons. doi: 10.1002/mds.25605
2013
Conference Publication
Validity of depression and anxiety rating scales in Parkinson’s disease
Torbey, E., Pachana, N. and Dissanayaka, N. (2013). Validity of depression and anxiety rating scales in Parkinson’s disease. 22nd Annual RBWH Health Care Symposium, Brisbane, Australia, 14-18 October 2013.
Funding
Current funding
Supervision
Availability
- Professor Nadeeka Dissanayaka is:
- Available for supervision
Looking for a supervisor? Read our advice on how to choose a supervisor.
Available projects
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1. PhD Scholarship available: Understanding the barriers and facilitators of delivering a technology-assisted telehealth psychotherapy intervention to people with dementia
As part of the study, we will undertake a process evaluation to assess treatment fidelity, dose and contextual factors that may influence effectiveness, to inform future implementation in community and memory clinic settings. The PhD project will focus on developing the future implementation framework for Tech-CBT. This project would suit someone with a background in psychology or health sciences.
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2. Neurobiology of Anxiety in Older Persons: fMRI study
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3. Virtual Reality based Psychological Interventions for Parkinson's disease and Dementia
Supervision history
Current supervision
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Doctor Philosophy
Delirium in hospital. Challenging times call for digital measures.
Principal Advisor
Other advisors: Dr Peter Worthy
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Doctor Philosophy
Development and implementation of a standardised toolkit to improve evaluation of cognitive impairment in Parkinsons disease
Principal Advisor
Other advisors: Dr Leander Mitchell, Dr Deborah Brooks
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Doctor Philosophy
Technology-assisted telehealth psychotherapy intervention for people with dementia
Principal Advisor
Other advisors: Dr Leander Mitchell, Dr Deborah Brooks
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Doctor Philosophy
Business models and implementation roadmap for rapid translation of PDCogniCare Intervention into healthcare
Principal Advisor
Other advisors: Professor Martie-Louise Verreynne, Associate Professor Sam MacAulay
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Doctor Philosophy
Assistive technologies for integrated cognitive and motor rehabilitation of stroke survivors in India
Associate Advisor
Other advisors: Associate Professor Devi Mohan
Completed supervision
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2024
Doctor Philosophy
Development and feasibility evaluation of a psychotherapy intervention for anxiety in persons living with cognitive impairment delivered via videoconferencing
Principal Advisor
Other advisors: Associate Professor Jacki Liddle, Dr Leander Mitchell
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2023
Doctor Philosophy
Cognitive subtypes in Parkinson's disease: exploring phenotypes, neuroimaging targets, and therapeutics
Principal Advisor
Other advisors: Associate Professor John O'Sullivan, Dr Ji Hyun Julia Yang
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2023
Doctor Philosophy
Towards Better Mental Health Care: Management of Behavioural and Psychological Symptoms within Residential Aged Care Facilities
Principal Advisor
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2020
Doctor Philosophy
Markers and Mechanisms of Mild Cognitive Impairment in Parkinson's disease
Principal Advisor
Other advisors: Professor David Copland
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2026
Doctor Philosophy
Dopamine and new word learning
Associate Advisor
Other advisors: Professor David Copland, Associate Professor Anthony Angwin
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2025
Doctor Philosophy
DEVELOPMENT OF A PICTURE-BASED QUALITY-OF-LIFE ASSESSMENT TOOL FOR PEOPLE LIVING WITH DEMENTIA
Associate Advisor
Other advisors: Associate Professor Anthony Angwin
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2025
Doctor Philosophy
Physiologic Signal Correlates of Vigilance Related Cognitive Decline in Patients with Obstructive Sleep Apnoea
Associate Advisor
Other advisors: Hon Assoc Professor Udantha Abeyratne
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2019
Doctor Philosophy
Twillight or dimlight? Attitudes towards residential aged care and implementation of an learning integrated intervention designed to shift attitudes.
Associate Advisor
Other advisors: Associate Professor Theresa Scott, Professor Nancy Pachana
Media
Enquiries
Contact Professor Nadeeka Dissanayaka directly for media enquiries about:
- Anxiety
- Cognitive Behaviour Therapy
- Dementia
- Depression
- Mindfulness
- Parkinson's diisease
- Psychotropic Prescriptions
- Residential Aged Care
- Virtual Reality
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