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
2026
Journal Article
Direct‐to‐home tele‐neuropsychological assessment in older adults: a systematic review
King, James M., Pourzinal, Dana, McCann, Emily, Hawes, Alexandra, Lobo, Elton H., Brooks, Deborah, Mitchell, Leander K. and Dissanayaka, Nadeeka N. (2026). Direct‐To‐Home Tele‐Neuropsychological Assessment in Older Adults: A Systematic Review. Journal of the American Geriatrics Society jgs.70683. doi: 10.1111/jgs.70683
2026
Journal Article
Neuropsychologists’ engagement with and cognitive assessment in Parkinson’s disease: a mixed methods Australian investigation
King, James M., Dissanayaka, Nadeeka N., Brooks, Deborah, Mitchell, Leander K., Sivakumaran, Kumareshan, Yang, Jihyun, Sriram, Deepa, Naismith, Sharon L., Pachana, Nancy A., Gough, Rebecca and Pourzinal, Dana (2026). Neuropsychologists’ engagement with and cognitive assessment in Parkinson’s disease: a mixed methods Australian investigation. Journal of Geriatric Psychiatry and Neurology 08919887261462186, 8919887261462186-8919887261462186. doi: 10.1177/08919887261462186
2026
Journal Article
Barriers and enablers to cognitive assessment in Parkinson's disease: A qualitative contextual inquiry
Brooks, Deborah, Shrubsole, Kirstine, Sriram, Deepa, Yang, Jihyun, Mitchell, Leander K., Worthy, Peter, Lobo, Elton, Pourzinal, Dana and Dissanayaka, Nadeeka N. (2026). Barriers and enablers to cognitive assessment in Parkinson's disease: A qualitative contextual inquiry. Journal of Parkinson’s Disease, 16 (4), 769-781. doi: 10.1177/1877718x261440707
2026
Journal Article
Identifying potential mental health indicators for long-term care: results from a participatory mapping study
Sriram, Deepa, Brimelow, Rachel, Burley, Claire, Dissanayaka, Nadeeka and Brooks, Deborah (2026). Identifying potential mental health indicators for long-term care: results from a participatory mapping study. Journal of Long-Term Care, 2026, 132-144. doi: 10.31389/jltc.448
2026
Journal Article
Implementing technology in neuropsychological assessments: a scoping review
Lobo, Elton H., Young, Dashiell, McCann, Emily, Sriram, Deepa, Mitchell, Leander K., Brooks, Deborah and Dissanayaka, Nadeeka N. (2026). Implementing technology in neuropsychological assessments: a scoping review. Journal of Medical Systems, 50 (1) 73, 1. doi: 10.1007/s10916-026-02407-z
2026
Journal Article
Recommendations to improve healthcare service provision for cognitive impairment in people with Parkinson's disease: a mixed methods study of the lived experience expert perspective
Sriram, Deepa, Pourzinal, Dana, Bailey, Daniel X., Brooks, Deborah, Shrubsole, Kirstine, Yang, Jihyun, Page, Neil, McCann, Emily, Lobo, Elton H., King, James M., Mitchell, Leander K., Pachana, Nancy A. and Dissanayaka, Nadeeka N. (2026). Recommendations to improve healthcare service provision for cognitive impairment in people with Parkinson's disease: a mixed methods study of the lived experience expert perspective. Health Expectations, 29 (2) e70530, 1-13. doi: 10.1111/hex.70530
2026
Journal Article
Best practice guidelines for the diagnosis, evaluation, and management of cognitive disorders in Parkinson's disease
Pourzinal, Dana, Brooks, Deborah, Sriram, Deepa, Mccann, Emily, King, James M., Pachana, Nancy A., Shrubsole, Kirstine, Wood, Brian, Lehn, Alexander, Marsh, Rodney, Liddle, Jacki, Mitchell, Leander K., O'Sullivan, John D., Tan, Edwin C. K., Page, Neil, Lobo, Elton H., Verreynne, Martie-Louise, Lenzen, Sabrina and Dissanayaka, Nadeeka (2026). Best practice guidelines for the diagnosis, evaluation, and management of cognitive disorders in Parkinson's disease. Age and Ageing, 55 (3) afag063. doi: 10.1093/ageing/afag063
2026
Journal Article
What can we do to enhance cognitive care in Parkinson's disease?
Pourzinal, Dana, Brooks, Deborah, O'Sullivan, John D., Naismith, Sharon L. and Dissanayaka, Nadeeka N. (2026). What can we do to enhance cognitive care in Parkinson's disease?. Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring, 18 (1) e70276. doi: 10.1002/dad2.70276
2026
Book Chapter
Enabling Technology Engagement for People with Cognitive Impairment: A Scoping Review
Lobo, Elton H., Chen, Victoria, Pan, Yanyun, Xie, Yutong, Zhao, Hana and Dissanayaka, Nadeeka (2026). Enabling Technology Engagement for People with Cognitive Impairment: A Scoping Review. Lecture Notes in Computer Science. (pp. 244-264) Cham: Springer Nature Switzerland. doi: 10.1007/978-3-032-30414-8_16
2026
Journal Article
Evaluating evidence for a neuropsychological toolkit to predict cognitive decline in PD: a systematic review
Pourzinal, Dana, King, James, Sivakumaran, Kumareshan, Yang, Jihyun, McCann, Emily, Mitchell, Leander K., Brooks, Deborah, Lehn, Alexander, Liddle, Jacki, Pachana, Nancy A., Tinson, Helen, Shrubsole, Kirstine, Bailey, Daniel X. and Dissanayaka, Nadeeka N. (2026). Evaluating evidence for a neuropsychological toolkit to predict cognitive decline in PD: a systematic review. The Clinical Neuropsychologist, 40 (5), 1289-1316. doi: 10.1080/13854046.2025.2511966
2025
Conference Publication
Dementia care research and psychosocial factors
Brooks, Deborah, Sriram, Deepa, Brimelow, Rachel, Burley, Claire V., Wesson, Jacqueline, MacAndrew, Margaret, Morris, Thomas, Mitchell, Leander K., Pachana, Nancy, Brodaty, Henry, Beattie, Elizabeth and Dissanayaka, Nadeeka N. (2025). Dementia care research and psychosocial factors. AAIC 2025, Toronto, Canada, 27-31 July 2025. Hoboken, NJ United States: John Wiley & Sons. doi: 10.1002/alz70858_101811
2025
Conference Publication
“Do I meet the criteria for dementia…Really, where am I headed?”: Perspective of people with Parkinson's Disease on the diagnosis, evaluation and management of cognitive disorders
Sriram, Deepa, Pourzinal, Dana, Bailey, Daniel X., Brooks, Deborah and Dissanayaka, Nadeeka N. (2025). “Do I meet the criteria for dementia…Really, where am I headed?”: Perspective of people with Parkinson's Disease on the diagnosis, evaluation and management of cognitive disorders. AAIC 2025, Toronto, Canada, 27-31 July 2025. Hoboken, NJ United States: John Wiley & Sons. doi: 10.1002/alz70858_103957
2025
Conference Publication
Feasibility, acceptability, and reliable tests for direct-to-home tele-neuropsychological assessment in older adults
King, James, Pourzinal, Dana, McCann, Emily, Hawes, Alexandra and Dissanayaka, Nadeeka (2025). Feasibility, acceptability, and reliable tests for direct-to-home tele-neuropsychological assessment in older adults. Psychology and Ageing Interest Group National Conference., Brisbane, QLD Australia, 28th November 2025.
2025
Journal Article
Enhancing neuropsychological assessment clinical pathways in Parkinson's disease through the use of technology
Lobo, Elton H., Worthy, Peter, Brooks, Deborah, Shrubsole, Kirstine, Pourzinal, Dana, Sriram, Deepa, Fels, Rachel, Yang, Ji Hyun, Liddle, Jacki, Mitchell, Leander K. and Dissanayaka, Nadeeka N. (2025). Enhancing neuropsychological assessment clinical pathways in Parkinson's disease through the use of technology. Frontiers in Digital Health, 7 1681221, 1681221. doi: 10.3389/fdgth.2025.1681221
2025
Conference Publication
Improving diagnosis of dementia in Parkinson’s disease: PDCogniCare Australian Program
Dissanayaka, Nadeeka, Pourzinal, Dana, McCann, Emily, Lobo, Elton Henry Savio, Brooks, Deborah, Sriram, Deepa, Au, Tiffany, Mitchell, Leander K., Pachana, Nancy, Naismith, Sharon, Broome, Annette, Lehn, Alexander, Kelder, Anna, Liddle, Jacki, King, James, Marsh, Rodney, Robertson, Stuart, Shrubsole, Kirstine, Tinson, Helen, Verreynne, Martie-Louise, Wood, Brian, Worthy, Peter, Yang, Julia, Nestor, Peter J., Chatfield, Mark, Keramat, Syed Afroz, Tan, Edwin, Piccinini, Tomas, Beattie, Elizabeth ... O'Sullivan, John (2025). Improving diagnosis of dementia in Parkinson’s disease: PDCogniCare Australian Program. Movement Disorders International Congress, Honolulu, HI United States, 5-9 October 2025.
2025
Conference Publication
The PDCogniCare Toolkit: Developing a harmonised neuropsychological toolkit specific to Parkinson’s Disease
McCann, Emily, Pourzinal, Dana, Sriram, Deepa, Mitchell, Leander K., Liddle, Jacki, Lehn, Alexander and Dissanayaka, Nadeeka (2025). The PDCogniCare Toolkit: Developing a harmonised neuropsychological toolkit specific to Parkinson’s Disease. Movement Disorders International Congress, Honolulu, HI United States, 5-9 October 2025.
2025
Conference Publication
Critical steps to enhance identification of mild cognitive impairment and dementia in Parkinson’s disease: PDCogniCare Australian Program.
Dissanayaka, Nadeeka, Pourzinal, Dana, McCann, Emily, Lobo, Elton Henry Savio, Brooks, Deborah, Sriram, Deepa, Au, Tiffany, Mitchell, Leander K., O'Sullivan, John, Naismith, Sharon, Broome, Annette, Lehn, Alexander, Kelder, Anna, Liddle, Jacki, King, James, Robertson, Stuart, Shrubsole, Kirstine, Tinson, Helen, Verreynne, Martie-Louise, Wood, Brian, Worthy, Peter, Yang, Jihuyn, Nestor, Peter, Chatfield, Mark, Keramat, Syed Afroz, Tan, Edwin, Piccinini, Tomas, Beattie, Elizabeth, Marsh, Rodney ... Pachana, Nancy (2025). Critical steps to enhance identification of mild cognitive impairment and dementia in Parkinson’s disease: PDCogniCare Australian Program.. International Psychogeriatric Association Congress, Kanazawa, Japan, 25-27 September 2025. AMSTERDAM: ELSEVIER.
2025
Journal Article
Non-pharmacological interventions to reduce behavioral and psychological symptoms of dementia
Brooks, Deborah, Mitchell, Leander K. and Dissanayaka, Nadeeka N. (2025). Non-pharmacological interventions to reduce behavioral and psychological symptoms of dementia. Advances in Psychiatry and Behavioral Health, 5 (1), 237-248. doi: 10.1016/j.ypsc.2025.03.004
2025
Journal Article
Mental health-related quality indicators for long-term care: a modified Delphi consensus study
Brooks, Deborah, Sriram, Deepa, Brimelow, Rachel, Burley, Claire, Wesson, Jacqueline, MacAndrew, Margaret, Morris, Thomas, Mitchell, Leander K., Pachana, Nancy A., Brodaty, Henry, Beattie, Elizabeth, Gray, Leonard C. and Dissanayaka, Nadeeka N. (2025). Mental health-related quality indicators for long-term care: a modified Delphi consensus study. Journal of the American Medical Directors Association, 26 (9) 105768, 1-8. doi: 10.1016/j.jamda.2025.105768
2025
Conference Publication
Enhancing utility of neuropsychological evaluation for earlier and effective diagnosis of dementia in Parkinson’s disease: PDCogniCare Project
Dissanayaka, Nadeeka, Au, Tiffany, Beattie, Elizabeth, Brooks, Deborah, Broome, Annette, Byrne, Gerard, Chatfield, Mark, Lehn, Alexander, Kelderm, Anna, Liddle, Jacki, Keramat, Syed Afroz, King, James, Lobo, Elton Henry Savio, Marsh, Rodney, McCann, Emily, Naismith, Sharon, Nestor, Peter, O'Sullivan, John, Pachana, Nancy, Piccinini, Tomas, Pourzinal, Dana, Robertson, Stuart, Shrubsole, Kirstine, Spooner, Donna, Sriram, Deepa, Tan, Edwin, Tinson, Helen, Verreynne, Martie-Louise, Wood, Brian ... Mitchell, Leander K. (2025). Enhancing utility of neuropsychological evaluation for earlier and effective diagnosis of dementia in Parkinson’s disease: PDCogniCare Project. 7th Pacific Rim Conference, Brisbane, Qld Australia, 2-5 July 2025.
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
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
Delirium in hospital. Challenging times call for digital measures.
Principal Advisor
Other advisors: Dr Peter Worthy, Professor Juha Toyras
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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, Professor Tracy Comans
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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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