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Professor Nadeeka Dissanayaka
Professor

Nadeeka Dissanayaka

Email: 

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

Qualifications

  • Bachelor (Honours) of Science (Advanced), The University of Queensland
  • Doctor of Philosophy, The University of Queensland

Research interests

  • New diagnostic methods to identify anxiety in dementia and Parkinson's disease

  • Neuroimaging (EEG and fMRI) and psychophysiological markers

  • New psychological treatments using innovative technologies such as telehealth, virtual reality and mobile phones

  • Novel psychosocial interventions in residential aged care facilities

  • 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

316 works between 2004 and 2026

21 - 40 of 316 works

2025

Conference Publication

Developing Recommendations for Best Practice Guidelines for Cognitive Evaluation in Parkinson’s Disease: Insights from Lived Experience Experts

Sriram, Deepa, Pourzinal, Dana, Bailey, Daniel X., Brooks, Deborah, McCann, Emily and Dissanayaka, Nadeeka (2025). Developing Recommendations for Best Practice Guidelines for Cognitive Evaluation in Parkinson’s Disease: Insights from Lived Experience Experts. International Neuropsychological Society and the Australasian Society for the Study of Brain Impairment 7th Pacific Rim Conference, Brisbane, QLD Australia, 2-5 July 2025.

Developing Recommendations for Best Practice Guidelines for Cognitive Evaluation in Parkinson’s Disease: Insights from Lived Experience Experts

2025

Conference Publication

Harmonising neuropsychological assessments to identify cognitive impairment in Parkinson's disease: A systematic review and critique

McCann, Emily, Pourzinal, Dana, Brooks, Deborah, Sriram, Deepa, Mitchell, Leander K., Pachana, Nancy A., King, James and Dissanayaka, Nadeeka (2025). Harmonising neuropsychological assessments to identify cognitive impairment in Parkinson's disease: A systematic review and critique. 7th Pacific Rim Conference, Brisbane, QLD Australia, 2-5 July 2025.

Harmonising neuropsychological assessments to identify cognitive impairment in Parkinson's disease: A systematic review and critique

2025

Journal Article

Diagnosis, evaluation, and management of cognitive disorders in Parkinson's disease: consensus recommendations from a modified Delphi process

Pourzinal, Dana, Brooks, Deborah, Sriram, Deepa, Mitchell, Leander K., Pachana, Nancy A., Shrubsole, Kirstine, Wood, Brian, O'Sullivan, John D., Marsh, Rodney, Lehn, Alexander, Liddle, Jacki, Tan, Edwin C. K., Halford, W. Kim, Page, Neil and Dissanayaka, Nadeeka N. (2025). Diagnosis, evaluation, and management of cognitive disorders in Parkinson's disease: consensus recommendations from a modified Delphi process. Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring, 17 (3) e70152, 1-13. doi: 10.1002/dad2.70152

Diagnosis, evaluation, and management of cognitive disorders in Parkinson's disease: consensus recommendations from a modified Delphi process

2025

Journal Article

Diagnosis, evaluation and management of cognitive disorders in Parkinson’s disease: a systematic review

Pourzinal, Dana, Elgey, Charlotte, Bailey, Daniel X., Yang, Jihyun, Lehn, Alexander, Tinson, Helen, Liddle, Jacki, Brooks, Deborah, Naismith, Sharon L., Shrubsole, Kirstine, Marsh, Rodney, Mitchell, Leander K., Pachana, Nancy A., King, James and Dissanayaka, Nadeeka N. (2025). Diagnosis, evaluation and management of cognitive disorders in Parkinson’s disease: a systematic review. International Psychogeriatrics 100081, 1-10. doi: 10.1016/j.inpsyc.2025.100081

Diagnosis, evaluation and management of cognitive disorders in Parkinson’s disease: a systematic review

2025

Journal Article

Psychological distress and productivity loss: a longitudinal analysis of Australian working adults

Keramat, Syed Afroz, Comans, Tracy, Pearce, Alison, Basri, Rabeya, Hashmi, Rubayyat and Dissanayaka, Nadeeka N. (2025). Psychological distress and productivity loss: a longitudinal analysis of Australian working adults. The European Journal of Health Economics, 26 (8), 1-22. doi: 10.1007/s10198-025-01764-9

Psychological distress and productivity loss: a longitudinal analysis of Australian working adults

2025

Journal Article

Deterioration of health-related quality of life: the hidden health burden of informal caregiving

Keramat, Syed Afroz, Sarker, Prianka Maria, Comans, Tracy, Brooks, Deborah and Dissanayaka, Nadeeka N. (2025). Deterioration of health-related quality of life: the hidden health burden of informal caregiving. The European Journal of Health Economics, 26 (8), 1-24. doi: 10.1007/s10198-025-01776-5

Deterioration of health-related quality of life: the hidden health burden of informal caregiving

2025

Journal Article

"We have a behaviour support plan, let's have a mental health support plan": Perspectives of staff, residents and family carers on understanding, responding to and promoting the mental health of residents within long-term care

Brooks, Deborah, Sriram, Deepa, Burley, Claire V., Brimelow, Rachel and Dissanayaka, Nadeeka N. (2025). "We have a behaviour support plan, let's have a mental health support plan": Perspectives of staff, residents and family carers on understanding, responding to and promoting the mental health of residents within long-term care. Dementia, 25 (3) 14713012251334170, 1-19. doi: 10.1177/14713012251334170

"We have a behaviour support plan, let's have a mental health support plan": Perspectives of staff, residents and family carers on understanding, responding to and promoting the mental health of residents within long-term care

2025

Journal Article

Development and validation of the Parkinson’s Disease Specific Anxiety Inventory (PDSAI)

Dissanayaka, Nadeeka N., Pourzinal, Dana, Byrne, Gerard, Pachana, Nancy A., O’Sullivan, John D., White, Elizabeth, Au, Tiffany, Yang, Jihyun, Interian, Alejandro, Rodriguez, Kailyn and Dobkin, Roseanne D. (2025). Development and validation of the Parkinson’s Disease Specific Anxiety Inventory (PDSAI). Journal of Geriatric Psychiatry and Neurology, 38 (5), 353-361. doi: 10.1177/08919887251332660

Development and validation of the Parkinson’s Disease Specific Anxiety Inventory (PDSAI)

2025

Journal Article

Pilot implementation of an electronic diagnostic support tool (AiD‐DST) designed to identify the cause(s) of delirium

Leong, Elizabeth, Chang, Stephane, Yearwood, Kristi, Eeles, Eamonn, Yerkovich, Stephanie, Ling, Carolina, Teodorczuk, Andrew and Dissanayaka, Nadeeka (2025). Pilot implementation of an electronic diagnostic support tool (AiD‐DST) designed to identify the cause(s) of delirium. Australasian Journal on Ageing, 44 (1) e70000, 1-7. doi: 10.1111/ajag.70000

Pilot implementation of an electronic diagnostic support tool (AiD‐DST) designed to identify the cause(s) of delirium

2025

Journal Article

The estimation of health state utility values for psychological distress in Australia: implications for future economic evaluations

Keramat, Syed Afroz, Comans, Tracy, Basri, Rabeya, Bailey, Daniel, Brooks, Deborah and Dissanayaka, Nadeeka N. (2025). The estimation of health state utility values for psychological distress in Australia: implications for future economic evaluations. Value in Health, 28 (3), 368-378. doi: 10.1016/j.jval.2024.12.002

The estimation of health state utility values for psychological distress in Australia: implications for future economic evaluations

2025

Journal Article

Telehealth cognitive behavior therapy to reduce anxiety in people living with cognitive impairment: a randomized feasibility pilot study

Pacas Fronza, Gabriela, Mitchell, Leander K., Pachana, Nancy A., Byrne, Gerard J., Liddle, Jacki, Yang, Jihyun, Brooks, Deborah, Au, Tiffany, Pourzinal, Dana, Worthy, Peter, Comans, Tracy, Beattie, Elizabeth, Bennett, Sally, Russell, Trevor and Dissanayaka, Nadeeka N. (2025). Telehealth cognitive behavior therapy to reduce anxiety in people living with cognitive impairment: a randomized feasibility pilot study. Clinical Gerontologist, 48 (4), 684-698. doi: 10.1080/07317115.2024.2336187

Telehealth cognitive behavior therapy to reduce anxiety in people living with cognitive impairment: a randomized feasibility pilot study

2024

Journal Article

Interhemispheric asynchrony of NREM EEG at the beginning and end of sleep describes evening vigilance performance in patients undergoing diagnostic polysomnography

McCloy, Karen, Duce, Brett, Dissanayaka, Nadeeka, Hukins, Craig and Abeyratne, Udantha (2024). Interhemispheric asynchrony of NREM EEG at the beginning and end of sleep describes evening vigilance performance in patients undergoing diagnostic polysomnography. Physiological Measurement, 45 (11) 115002, 1-17. doi: 10.1088/1361-6579/ad8f8f

Interhemispheric asynchrony of NREM EEG at the beginning and end of sleep describes evening vigilance performance in patients undergoing diagnostic polysomnography

2024

Journal Article

Capturing the ghost in the machine: a process for development and validation of measures of phenomenal consciousness in delirium

Eeles, Eamonn, Tran, David Duc, Ward, Sarah, Teodorczuk, Andrew, Ray, Julian, Miller, Tim and Dissanayaka, Nadeeka N. (2024). Capturing the ghost in the machine: a process for development and validation of measures of phenomenal consciousness in delirium. Age and Ageing, 53 (7) afae144. doi: 10.1093/ageing/afae144

Capturing the ghost in the machine: a process for development and validation of measures of phenomenal consciousness in delirium

2024

Journal Article

Profiling people with Parkinson's disease at risk of cognitive decline: Insights from PPMI and ICICLE‐PD data

Pourzinal, Dana, Lawson, Rachael A., Yarnall, Alison J., Williams‐Gray, Caroline H., Barker, Roger A., Yang, Jihyun, McMahon, Katie L., O'Sullivan, John D., Byrne, Gerard J. and Dissanayaka, Nadeeka N. (2024). Profiling people with Parkinson's disease at risk of cognitive decline: Insights from PPMI and ICICLE‐PD data. Alzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring, 16 (3) e12625, 1-11. doi: 10.1002/dad2.12625

Profiling people with Parkinson's disease at risk of cognitive decline: Insights from PPMI and ICICLE‐PD data

2024

Conference Publication

Enhancing utility of neuropsychological evaluation for earlier and effective diagnosis of dementia in Parkinson’s disease: PDCogniCare project

Au, T., Bailey, D., Beattie, E., Brooks, D., Broome, A., Byrne, G., Chatfield, M., Dissanayaka, N., Keramat, S.A., Lehn, A., Liddle, J., Marsh, R., Mitchell, L., Naismith, S., Nestor, S., O’Sullivan, J., Pachana, N., Pourzinal, D., Robertson, S., Shrubsole, K., Sivakumaran, K., Spooner, D., Tinson, H., Verreynne, M.L., Worthy, P. and Yang, J. (2024). Enhancing utility of neuropsychological evaluation for earlier and effective diagnosis of dementia in Parkinson’s disease: PDCogniCare project. Australian Dementia Research Forum 2024, Gold Coast, QLD Australia, 3-5 June 2024.

Enhancing utility of neuropsychological evaluation for earlier and effective diagnosis of dementia in Parkinson’s disease: PDCogniCare project

2024

Conference Publication

Neuropsychological predictors of cognitive decline in Parkinson's disease: A systematic review (PDCogniCare)

Pourzinal, D., Sivakumaran, K., Yang, J., Bailey, D.X., Mitchell, L.K., Brooks, D. and Dissanayaka, N. (2024). Neuropsychological predictors of cognitive decline in Parkinson's disease: A systematic review (PDCogniCare). Australian Dementia Research Forum 2024, Gold Coast, QLD Australia, 3-5 June 2024.

Neuropsychological predictors of cognitive decline in Parkinson's disease: A systematic review (PDCogniCare)

2024

Conference Publication

Barriers and facilitators of cognitive behavioural therapy interventions for people living with mild cognitive impairment or dementia: a systematic review

Welsh, K., Brooks, D., Mitchell, L. and Dissanayaka, N. (2024). Barriers and facilitators of cognitive behavioural therapy interventions for people living with mild cognitive impairment or dementia: a systematic review. Australian Dementia Research Forum 2024, Gold Coast, QLD Australia, 3-5 June 2024.

Barriers and facilitators of cognitive behavioural therapy interventions for people living with mild cognitive impairment or dementia: a systematic review

2024

Conference Publication

Barriers and enablers to cognitive assessment in Parkinson’s disease: perspectives of clinicians and people living with PD

Brooks, D., Worthy, P., Shrubsole, K. and Dissanayaka, N. (2024). Barriers and enablers to cognitive assessment in Parkinson’s disease: perspectives of clinicians and people living with PD. Australian Dementia Research Forum 2024, Gold Coast, QLD Australia, 3-5 June 2024.

Barriers and enablers to cognitive assessment in Parkinson’s disease: perspectives of clinicians and people living with PD

2024

Conference Publication

Technology assisted and remotely delivered anxiety psychotherapy intervention for people living with dementia and their care partners: Tech-CBT project

Au, T., Beattie, E., Bennett, S., Brooks, D., Broome, A., Byrne, G., Chatfield, M., Comans, T., Dissanayaka, N., Guy, R., Keramat, S.A., King, T., Lehn, A., Liddle, J., Mitchell, L., Oram, J., O’Sullivan, J., Pacas Fronza, G., Pachana, N., Pietsch, A., Tan, J., Welsh, K. and Worthy, P. (2024). Technology assisted and remotely delivered anxiety psychotherapy intervention for people living with dementia and their care partners: Tech-CBT project. Australian Dementia Research Forum 2024, Gold Coast, QLD Australia, 3-5 June 2024.

Technology assisted and remotely delivered anxiety psychotherapy intervention for people living with dementia and their care partners: Tech-CBT project

2024

Journal Article

Hippocampal resting‐state connectivity is associated with posterior‐cortical cognitive impairment in Parkinson's disease

Pourzinal, Dana, Yang, Jihyun, McMahon, Katie L., Copland, David A., Mitchell, Leander, O'Sullivan, John D., Byrne, Gerard J. and Dissanayaka, Nadeeka N. (2024). Hippocampal resting‐state connectivity is associated with posterior‐cortical cognitive impairment in Parkinson's disease. Brain and Behavior, 14 (3) e3454, 1-12. doi: 10.1002/brb3.3454

Hippocampal resting‐state connectivity is associated with posterior‐cortical cognitive impairment in Parkinson's disease

Funding

Current funding

  • 2023 - 2028
    Enhancing utility of neuropsychological evaluation for earlier and effective diagnosis of dementia in Parkinson's disease
    NHMRC MRFF Dementia, Ageing and Aged Care Mission
    Open grant
  • 2022 - 2026
    Neuropsychiatry in Parkinson's Disease Research Program Project 1 of 4
    Research Donation Generic
    Open grant

Past funding

  • 2025 - 2026
    Enhancing Navigation and Access to Cognitive-friendly Technologh (ENACT): Developing a Roadmap for Technology Design
    auDA Community Grant
    Open grant
  • 2024 - 2026
    Improving the mental health of residents with dementia: Pilot-testing a Mental Health Care Indicator Tool within residential aged care homes
    Dementia Australia Research Foundation
    Open grant
  • 2022 - 2025
    Dementia Connect
    Prince Charles Hospital Foundation
    Open grant
  • 2022 - 2024
    Towards better mental health of people with dementia within Residential Aged Care: Co-design of a performance measurement tool to aid RAC organisational governance
    Dementia Australia Research Foundation Project Grants
    Open grant
  • 2021 - 2026
    Technology Assisted and Remotely Delivered Anxiety Psychotherapy Intervention for People living with Dementia and Their Care Partners (Tech-CBT)
    NHMRC MRFF Dementia, Ageing and Aged Care Mission
    Open grant
  • 2021
    Uncovering a novel therapeutic target to reduce dementia risk in Parkinson¿s disease (TRIP)
    Royal Brisbane and Women's Hospital Foundation
    Open grant
  • 2021 - 2022
    Uncovering a novel therapeutic target to reduce dementia risk in Parkinson's disease
    Metro North Hospital and Health Service
    Open grant
  • 2021 - 2022
    Uncovering a novel therapeutic target to reduce dementia risk in Parkinson's disease (TRIP study)
    Metro North Hospital and Health Service
    Open grant
  • 2018 - 2021
    A feasibility study of cognitive behavior therapy with virtual reality and biofeedback systems to treat anxiety in Parkinson's disease
    Brain and Behavior Research Foundation
    Open grant
  • 2018 - 2024
    Treatment of Anxiety and Depression in Dementia
    NHMRC Boosting Dementia Research Leadership Fellowship
    Open grant
  • 2018 - 2019
    Virtual reality innovation to treat anxiety in patients with cognitive impairment and Parkinson's Disease
    Metro North Hospital and Health Service
    Open grant
  • 2017 - 2018
    Anxiety and cognitive decline in Parkinson's disease
    Royal Brisbane and Women's Hospital Foundation
    Open grant
  • 2016 - 2017
    Cognitive behaviour therapy for anxiety in Parkinson's disease: outcomes for patients and caregivers
    Royal Brisbane and Women's Hospital Foundation
    Open grant
  • 2015 - 2016
    Mindfulness therapy for depression, anxiety, motor and cognitive dysfunction in Parkinson's disease
    Royal Brisbane and Women's Hospital
    Open grant
  • 2014 - 2016
    Developing a non-invasive composite measure to enhance accuracy of identifying anxiety in Parkinson's disease
    Royal Brisbane and Women's Hospital
    Open grant
  • 2013 - 2019
    Lions Medical Research Fellowship: New methods to diagnose and treat depression and anxiety in Parkinson's disease patients
    Lions Medical Research Foundation
    Open grant
  • 2013 - 2014
    Characterising anxiety in Parkinson's disease: A psycholinguistic and psychophysiology study comparing to anxious older adults
    Royal Brisbane & Women's Hospital Research Foundation
    Open grant
  • 2013 - 2015
    The effects of a wearable, freeze detecting cueing device and venlafaxine on domiciliary freezing of gait and falling in Parkinson's Disease
    Royal Brisbane and Women's Hospital
    Open grant
  • 2012 - 2013
    Cognitive sequence in Parkinson's disease: Identifying the neural substrates
    Parkinson's Queensland Inc
    Open grant
  • 2012
    Cognitive behaviour therapy to treat anxiety and depression in Parkinson's Disease
    UWA-UQ Bilateral Research Collaboration Award
    Open grant
  • 2012 - 2013
    Improving diagnostic methods of anxiety disorders in Parkinson's disease: Phase 2
    Royal Brisbane & Women's Hospital Research Foundation
    Open grant
  • 2011 - 2013
    Improving diagnostic methods of anxiety disorders in Parkinson's disease
    Royal Brisbane & Women's Hospital Research Foundation
    Open grant
  • 2011 - 2013
    Novel methods for early detection of anxiety in Parkinson's disease
    Parkinson's Queensland Inc
    Open grant

Supervision

Availability

Professor Nadeeka Dissanayaka is:
Available for supervision

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Available projects

Supervision history

Current supervision

  • Doctor Philosophy

    Delirium in hospital. Challenging times call for digital measures.

    Principal Advisor

    Other advisors: Dr Peter Worthy

  • Doctor Philosophy

    Technology-assisted telehealth psychotherapy intervention for people with dementia

    Principal Advisor

    Other advisors: Dr Leander Mitchell, Dr Deborah Brooks

  • 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

  • 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

  • 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

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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