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
2022
Journal Article
A pilot study of telehealth mindfulness-based cognitive therapy for depression in Parkinson’s disease
Interian, Alejandro, Miller, Rachael B., Hill, Lauren M. St., Latorre, Miriam, King, Arlene R., Rodriguez, Kailyn M., Mann, Sarah L., Kashan, Rachel S., Dissanayaka, Nadeeka N. and Dobkin, Roseanne D. (2022). A pilot study of telehealth mindfulness-based cognitive therapy for depression in Parkinson’s disease. Journal of Geriatric Psychiatry and Neurology, 36 (2) 08919887221103579, 8919887221103579-154. doi: 10.1177/08919887221103579
2022
Journal Article
The Attention Network Test in Parkinson and Lewy body disease: a systematic review
Yang, Jihyun, Pourzinal, Dana, Rheinberger, Toby, Copland, David A., McMahon, Katie L., Byrne, Gerard J. and Dissanayaka, Nadeeka N. (2022). The Attention Network Test in Parkinson and Lewy body disease: a systematic review. Cognitive and Behavioral Neurology, 35 (1), 1-13. doi: 10.1097/WNN.0000000000000292
2022
Journal Article
Caring for a loved one with Parkinson’s disease: the role of coping styles and relationship quality
Zhang, Angeline, Mitchell, Leander K., Pachana, Nancy A., Yang, Ji Hyun J., Au, Tiffany R., Byrne, Gerard J., O’Sullivan, John D. and Dissanayaka, Nadeeka N. (2022). Caring for a loved one with Parkinson’s disease: the role of coping styles and relationship quality. International Psychogeriatrics, 34 (7) PII S1041610221002866, 1-8. doi: 10.1017/s1041610221002866
2022
Journal Article
Phenomenology of atypical anxiety disorders in Parkinson's Disease: a systematic review
Dissanayaka, Nadeeka N., Forbes, Elana J., Perepezko, Kate, Leentjens, Albert F.G., Dobkin, Roseanne D., Dujardin, Kathy and Pontone, Gregory M. (2022). Phenomenology of atypical anxiety disorders in Parkinson's Disease: a systematic review. The American Journal of Geriatric Psychiatry, 30 (9), 1026-1050. doi: 10.1016/j.jagp.2022.02.004
2022
Conference Publication
Involving people impacted by dementia in research: Methods and insights from a psychotherapeutic intervention study
Brooks, D., Page, N., Pietsch, A., Au, T., Pacas Fronza, G., Pournizal, D., Worthy, P., Yang, J. and Dissanayaka, N. (2022). Involving people impacted by dementia in research: Methods and insights from a psychotherapeutic intervention study. Australian Dementia Research Forum 2022, Online, 30-31 May 2022.
2022
Conference Publication
Functional magnetic resonance imaging of the hippocampus as biomarker for cognitive decline in Parkinson’s disease
Pourzinal, D., Yang, J., Byrne, G.J., O’Sullivan, J.D., McMahon, K. and Dissanayaka, N. (2022). Functional magnetic resonance imaging of the hippocampus as biomarker for cognitive decline in Parkinson’s disease. UQ Faculty of Medicine HDR Student Symposium, Brisbane, QLD, Australia, 7 October 2022.
2022
Conference Publication
Update on TRIP: Therapy to reduce dementia risk in Parkinson’s disease proof of concept trial
Pourzinal, D., Bakker, A., Byrne, G.J., McMahon, K., O’Sullivan, J.D., Adam, R., Lehn, A., Copland, D., Yang, J.H., Au, T., Littleford, R., Chatfield, M., Pontone, G., Mari, Z. and Dissanayaka, N. (2022). Update on TRIP: Therapy to reduce dementia risk in Parkinson’s disease proof of concept trial. UQ Neurosciences Symposium, Brisbane, QLD Australia, 26-27 September 2022.
2022
Conference Publication
Designing a technology platform to support remote delivery of psychotherapy for people with cognitive impairment: A contextual inquiry
Worthy, P., Brooks, D., Au, T., Pacas Fronza, G., Liddle, J., Bennett, S. and Dissanayaka, N. (2022). Designing a technology platform to support remote delivery of psychotherapy for people with cognitive impairment: A contextual inquiry. Australian Dementia Research Forum 2022, Online, 30-31 May 2022.
2022
Conference Publication
Semantic fluency and its associated brain activity in Parkinson’s disease with mild cognitive impairment
Yang, J., Byrne, G., McMahon, K., Copland, D., O’Sullivan, J. and Dissanayaka, N. (2022). Semantic fluency and its associated brain activity in Parkinson’s disease with mild cognitive impairment. UQ Neuroscience Symposium, Brisbane, QLD Australia, 26-27 September 2022.
2021
Conference Publication
Psychotherapy via telehealth to reduce anxiety in persons living with cognitive impairment
Pacas Fronza, G., Mitchell, L. K., Pachana, N. A., Byrne, G., Liddle, J. and Dissanayaka, N. N. (2021). Psychotherapy via telehealth to reduce anxiety in persons living with cognitive impairment. 31st Alzheimer Europe Conference: Resilience in dementia: Moving beyond the COVID-19 pandemic, Online, 29 November – 1 December 2021.
2021
Conference Publication
Achieving person-centred mental health care within residential aged care: co-design of a performance measurement tool. Making person-centred care a reality
Brimelow, R., Brooks, D., Burley, C., Byrne, G., Beattie, E. and Dissanayaka, N. (2021). Achieving person-centred mental health care within residential aged care: co-design of a performance measurement tool. Making person-centred care a reality. DCRC Workshop 2021, Online, 19 November 2021.
2021
Conference Publication
Using N-of-1 tests to identify responders to melatonin for sleep disturbance in Parkinson’s Disease
Nikles, J., Mitchell, G. K., Smith, S. S., McGree, J. M., McDonald, S., Poli, N., Senior, H., Tan, S., Dissanyaka, N., Ritchie, A. and O'Sullivan, J. D. (2021). Using N-of-1 tests to identify responders to melatonin for sleep disturbance in Parkinson’s Disease. Australian Clinical Trials Alliance conference, Sydney, NSW, Australia, November 2021.
2021
Conference Publication
Remote delivery of technology assisted psychotherapy for people living with dementia in the community
Pacas Fronza, G., Mitchell, L. K., Pachana, N. A., Byrne, G., Liddle, J. and Dissanayaka, N. N. (2021). Remote delivery of technology assisted psychotherapy for people living with dementia in the community. DCRC Anxiety and Depression Symposium 2021, Online, 17 September 2021. Kelvin Grove, QLD, Australia: Dementia Centre for Research Collaboration.
2021
Journal Article
Anxiety in Parkinson's Disease: a systematic review of neuroimaging studies
Perepezko, Kate, Naaz, Farah, Wagandt, Carrie, Dissanayaka, Nadeeka N., Mari, Zoltan, Nanavati, Julie, Bakker, Arnold and Pontone, Gregory M. (2021). Anxiety in Parkinson's Disease: a systematic review of neuroimaging studies. The Journal of Neuropsychiatry and Clinical Neurosciences, 33 (4), 280-294. doi: 10.1176/appi.neuropsych.20110272
2021
Journal Article
Anxiety disorders are associated with verbal memory impairment in patients with Parkinson’s disease without dementia
Dissanayaka, Nadeeka N., Forbes, Elana J., Yang, Ji Hyun J., Pourzinal, Dana, O’Sullivan, John D., Mitchell, Leander K., Copland, David A., McMahon, Katie L. and Byrne, Gerard J. (2021). Anxiety disorders are associated with verbal memory impairment in patients with Parkinson’s disease without dementia. Journal of Neurology, 269 (3), 1600-1609. doi: 10.1007/s00415-021-10736-x
2021
Journal Article
Feasibility of group-based multiple virtual reality sessions to reduce behavioral and psychological symptoms in persons living in residential aged care
Brimelow, Rachel E., Thangavelu, Karthick, Beattie, Romana and Dissanayaka, Nadeeka N. (2021). Feasibility of group-based multiple virtual reality sessions to reduce behavioral and psychological symptoms in persons living in residential aged care. Journal of the American Medical Directors Association, 23 (5), 831-837.e2. doi: 10.1016/j.jamda.2021.07.026
2021
Journal Article
Hippocampal correlates of episodic memory in Parkinson's disease: A systematic review of magnetic resonance imaging studies
Pourzinal, Dana, Yang, Ji Hyun J., Bakker, Arnold, McMahon, Katie L., Byrne, Gerard J., Pontone, Gregory M., Mari, Zoltan and Dissanayaka, Nadeeka N. (2021). Hippocampal correlates of episodic memory in Parkinson's disease: A systematic review of magnetic resonance imaging studies. Journal of Neuroscience Research, 99 (9) jnr.24863, 2097-2116. doi: 10.1002/jnr.24863
2021
Conference Publication
Therapy to reduce dementia risk in Parkinson’s disease (TRIP): Proof-of-concept protocol
Pourzinal, D., Bakker, A., Byrne, G.J., McMahon, K., O’Sullivan, J., Adam, R., Copland, D., Yang, J.H.J., Au, T., Littleford, R., Chatfield, M., Pontone, G., Mari, Z. and Dissanayaka, N. (2021). Therapy to reduce dementia risk in Parkinson’s disease (TRIP): Proof-of-concept protocol. Australia Dementia Forum 2021, Online, 31 May - 1 June 2021.
2021
Conference Publication
Telehealth psychotherapy for anxiety in older persons with cognitive impairment (Tele-CBT): a mixed methods pilot study
Pacas Fronza, G., Mitchell, L. K., Pachana, N. A., Byrne, G., Liddle, J. and Dissanayaka, N. N. (2021). Telehealth psychotherapy for anxiety in older persons with cognitive impairment (Tele-CBT): a mixed methods pilot study. Australia Dementia Forum 2021, Online, 31 May – 1 June 2021.
2021
Journal Article
Defining atypical anxiety in Parkinson's disease
Forbes, Elana J., Byrne, Gerard J., O'Sullivan, John D., Yang, Jihyun, Marsh, Rodney and Dissanayaka, Nadeeka N. (2021). Defining atypical anxiety in Parkinson's disease. Movement Disorders Clinical Practice, 8 (4), 571-581. doi: 10.1002/mdc3.13193
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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