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
2018
Journal Article
Persisting use of physical restraint: knowledge translation vs. attitudes
Walker, Nicole, Scott, Theresa, Dissanayaka, Nadeeka N., Barlow, Fiona Kate and Pachana, Nancy A. (2018). Persisting use of physical restraint: knowledge translation vs. attitudes. International Journal of Clinical Neurosciences and Mental Health, 5, 1-4. doi: 10.21035/ijcnmh.2018.5.1
2018
Conference Publication
Altered network connectivity during resting state in Parkinson's disease patients with mild cognitive impairment as a marker for dementia
Yang, J. H., McMahon, K. L., Copland, D. A., Byrne, G. J., Mitchell, L. K., O'Sullivan, J. D. and Dissanayaka, N. N. W. (2018). Altered network connectivity during resting state in Parkinson's disease patients with mild cognitive impairment as a marker for dementia. NNIDR Australian Dementia Forum, Sydney, NSW Australia, 4-5 June 2018.
2018
Conference Publication
Psychotropic prescribing guidelines required for residential aged care
Brimelow, R., Byrne, G. and Dissanayaka, N. (2018). Psychotropic prescribing guidelines required for residential aged care. International Dementia Conference: Mission Impossible - Truth and Lies in the Age of Choice, Sydney, Australia, 7-8 June 2018.
2018
Conference Publication
Depression in agedcare residents with dementia
Dissanayaka, N. N., Brimelow, R. and Byrne, G. (2018). Depression in agedcare residents with dementia. International Dementia Conference: Mission Impossible - Truth and Lies in the Age of Choice, Sydney, Australia, 7-8 June 2018.
2018
Conference Publication
Effectiveness of virtual reality for relaxation and reminiscence in people within Residential Aged Care: A mixed methods pilot study
Brimelow, R., Dawe, B., James, M., Bhuller, G. and Dissanayaka, N. (2018). Effectiveness of virtual reality for relaxation and reminiscence in people within Residential Aged Care: A mixed methods pilot study. 3rd Annual NHMRC National Institute for Dementia Research (NNIDR) Australian Dementia Forum, Sydney, Australia, 4 - 5 June 2018.
2018
Conference Publication
Altered network connectivity during resting state in Parkinson's disease patients with mild cognitive impairment as a marker for dementia
Yang, J. H., McMahon, K. L., Copland, D. A., Byrne, G. J., Mitchell, L. K., O'Sullivan, J. D. and Dissanayaka, N. N. W. (2018). Altered network connectivity during resting state in Parkinson's disease patients with mild cognitive impairment as a marker for dementia. Imaging@Brisbane 2018, Brisbane, QLD Australia, 22-24 August 2018.
2018
Conference Publication
Altered network connectivity during resting state in Parkinson's disease patients with mild cognitive impairment as a marker for dementia
Yang, J. H., McMahon, K. L., Copland, D. A., Byrne, G. J., Mitchell, L. K., O'Sullivan, J. D. and Dissanayaka, N. N. W. (2018). Altered network connectivity during resting state in Parkinson's disease patients with mild cognitive impairment as a marker for dementia. 8th Australasian Cognitive Neuroscience Society Conference, Melbourne, VIC Australia, 22-25 November 2018.
2018
Conference Publication
Attitudes, contact theory and age
Walker, N., Dissanayaka, N.N., Scott, T. and Pachana, N.A. (2018). Attitudes, contact theory and age. International Dementia Conference: "Mission Impossible? Truth and Lies in the Age of Choice", Sydney, NSW Australia, 7-8 June 2018.
2018
Journal Article
How well do caregivers detect depression and anxiety in patients with Parkinson disease?
Kua, Zhong Jie, Pachana, Nancy A., Byrne, Gerard J., O’Sullivan, John D., Rodney, Marsh, Torbey, Elizabeth, Silburn, Peter A., Mellick, George D. and Dissanayaka, Nadeeka N. W. (2018). How well do caregivers detect depression and anxiety in patients with Parkinson disease?. Journal of Geriatric Psychiatry and Neurology, 31 (5), 089198871878864-236. doi: 10.1177/0891988718788641
2018
Conference Publication
Residential aged care: industry and education taking a contact theory approach
Walker, N., Barlow, F., Reutas, J., Scott, T., Pachana, N. and Dissanayaka, N. (2018). Residential aged care: industry and education taking a contact theory approach. NNIDR Australian Dementia Forum, Sydney, Australia, 4-5 June 2018.
2018
Conference Publication
The Good Neighbour Program: An innovative social support/educational integrated intervention in residential aged-care
Walker, N., Scott, T., Barlow, F. K., Pachana, N. A. and Dissanayaka, N. N. W. (2018). The Good Neighbour Program: An innovative social support/educational integrated intervention in residential aged-care. International Dementia Conference: Mission Impossible - Truth and Lies in the Age of Choice, Sydney, Australia, 7-8 June 2018.
2018
Conference Publication
Attitudes towards Residential Aged Care (RAC): A contact theory approach
Walker, N., Dissanayaka, N., Scott, T. and Pachana, N.A. (2018). Attitudes towards Residential Aged Care (RAC): A contact theory approach. 3rd Annual NHMRC National Institute for Dementia Research (NNIDR) Australian Dementia Forum, Sydney, NSW Australia, 4 - 5 June 2018.
2018
Conference Publication
An integrative approach to management of behavioural and psychological symptoms in dementia
Dissanayaka, N., Brimelow, R., Walker, N., Pachana, N. and Byrne, G. (2018). An integrative approach to management of behavioural and psychological symptoms in dementia. 3rd Annual NHMRC National Institute for Dementia Research (NNIDR) Australian Dementia Forum, Sydney, NSW Australia, 4 - 5 June 2018.
2017
Journal Article
Caregiver burden in Parkinson disease: a critical review of recent literature
Mosley, Philip E., Moodie, Rebecca and Dissanayaka, Nadeeka (2017). Caregiver burden in Parkinson disease: a critical review of recent literature. Journal of Geriatric Psychiatry and Neurology, 30 (5), 235-252. doi: 10.1177/0891988717720302
2017
Journal Article
Lexical ambiguity resolution during sentence processing in Parkinson's disease: an event-related potential study
Angwin, Anthony J., Dissanayaka, Nadeeka N. W., McMahon, Katie L., Silburn, Peter A. and Copland, David A. (2017). Lexical ambiguity resolution during sentence processing in Parkinson's disease: an event-related potential study. PLoS One, 12 (5) e0176281, e0176281. doi: 10.1371/journal.pone.0176281
2017
Journal Article
N400 and emotional word processing in Parkinson's disease
Dissanayaka, Nadeeka N. W., Au, Tiffany R., Angwin, Anthony J., O’Sullivan, John D., Byrne, Gerard J., Silburn, Peter A., Rodney Marsh, Mellick, George D. and Copland, David A. (2017). N400 and emotional word processing in Parkinson's disease. Neuropsychology, 31 (6), 585-595. doi: 10.1037/neu0000333
2017
Journal Article
Anxiety is associated with cognitive impairment in newly-diagnosed Parkinson's disease
Dissanayaka, Nadeeka N. W., Lawson, Rachael A., Yarnall, Alison J., Duncan, Gordon W., Breen, David P., Khoo, Tien K., Barker, Roger A. and Burn, David J. (2017). Anxiety is associated with cognitive impairment in newly-diagnosed Parkinson's disease. Parkinsonism and Related Disorders, 36, 63-68. doi: 10.1016/j.parkreldis.2017.01.001
2017
Conference Publication
Impaired semantic fluency in Parkinson’s disease with mild cognitive impairment: a fMRI study
Yang, J. H., McMahon, K. L., Copland, D. A., Byrne, G. J., Toft, A. J. H., Mitchell, L. K. and Dissanayaka, N. N. W. (2017). Impaired semantic fluency in Parkinson’s disease with mild cognitive impairment: a fMRI study. 23rd Annual Meeting of the Organisation for Human Brain Mapping, Vancouver, BC, Canada, 25-29 June 2017.
2017
Journal Article
A neurophysiological study of semantic processing in Parkinson’s disease
Angwin, Anthony J., Dissanayaka, Nadeeka N. W., Moorcroft, Alison, McMahon, Katie L., Silburn, Peter A. and Copland, David A. (2017). A neurophysiological study of semantic processing in Parkinson’s disease. Journal of the International Neuropsychological Society, 23 (1), 78-89. doi: 10.1017/S1355617716000953
2017
Conference Publication
Improving diagnosis and treatment of anxiety in Parkinson’s disease: IDATA-PD study
Dissanayaka, N., Pachana, N., O’Sullivan, J., Marsh, R., Silburn, P., White, E., Torbey, E., Pye, D., Mitchell, L., Mellick, G., Copland, D. and Byrne, G. (2017). Improving diagnosis and treatment of anxiety in Parkinson’s disease: IDATA-PD study. International Congress of Parkinson's Disease and Movement Disorders, Vancouver, BC, Canada, 4-8 June 2017. Hoboken, NJ United States: Wiley.
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
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
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
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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