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Professor Nadeeka Dissanayaka
Professor

Nadeeka Dissanayaka

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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

141 - 160 of 316 works

2020

Conference Publication

Identification and clinical characteristics of mild cognitive impairment in Parkinson’s disease

Yang, J.H., Forbes, E., Pourzinal, D., McMahon, K., Copland, D.A., Byrne, G.J., O'Sullivan, J., Mitchell, L. and Dissanayaka, N.N. (2020). Identification and clinical characteristics of mild cognitive impairment in Parkinson’s disease. MDS Virtual Congress 2020, Online, 12-16 September 2020.

Identification and clinical characteristics of mild cognitive impairment in Parkinson’s disease

2020

Conference Publication

Investigating resting state functional connectivity in sub-phenotypes of Mild Cognitive Impairment in Parkinson’s disease

Pourzinal, D., Yang, J.H.J., Byrne, G.J., O'Sullivan, J., Mitchell, L., McMahon, K.L., Copland, D.A. and Dissanayaka, N.N. (2020). Investigating resting state functional connectivity in sub-phenotypes of Mild Cognitive Impairment in Parkinson’s disease. 5th Annual NHMRC National Institute for Dementia Research (NNIDR) Australian Dementia Forum, Adelaide, Australia, 31 May - 2 June 2020.

Investigating resting state functional connectivity in sub-phenotypes of Mild Cognitive Impairment in Parkinson’s disease

2020

Conference Publication

Identification and clinical characteristics of mild cognitive impairment in Parkinson’s disease

Yang, Ji Hyun, Forbes, Elana, Pourzinal, Dana, McMahon, Katie, Copland, David, Byrne, Gerard, O'Sullivan, John, Mitchell, Leander and Dissanayaka, Nadeeka (2020). Identification and clinical characteristics of mild cognitive impairment in Parkinson’s disease. Australian Dementia Forum, Adelaide, SA, Australia, 31 May-2 June 2020. Canberra City, ACT, Australia: NHMRC National Institute for Dementia Research (NNIDR).

Identification and clinical characteristics of mild cognitive impairment in Parkinson’s disease

2020

Journal Article

Psychosocial factors and perceived tremor disability in essential tremor

Thangavelu, Karthick, Talk, Andrew C., Clark, Gavin I. and Dissanayaka, Nadeeka N.W. (2020). Psychosocial factors and perceived tremor disability in essential tremor. Neuroscience and Biobehavioral Reviews, 108, 246-253. doi: 10.1016/j.neubiorev.2019.10.021

Psychosocial factors and perceived tremor disability in essential tremor

2020

Conference Publication

Improving diagnosis and treatment of anxiety in Parkinson’s disease: IDATA-PD study update

Dissanayaka, N.N,, Byrne, G.J., Mitchell, L.K., O’Sullivan, J.D., Padmassini, A., White, E.X., Yang, J.H.J., Forbes, E., Thangavelu, K., Au, T., Lehn, A., Adams, R. and Pachana, N.A. (2020). Improving diagnosis and treatment of anxiety in Parkinson’s disease: IDATA-PD study update. MDS Virtual Congress 2020, Online, 12-16 September 2020.

Improving diagnosis and treatment of anxiety in Parkinson’s disease: IDATA-PD study update

2020

Conference Publication

Improving identification and Treatmentf depression and anxiety in dementia: an integrated approach

Dissanayaka, Nadeeka (2020). Improving identification and Treatmentf depression and anxiety in dementia: an integrated approach. 5th Annual NHMRC National Institute for Dementia Research (NNIDR) Australian Dementia Forum, Adelaide, Australia, 31 May-2 June 2020.

Improving identification and Treatmentf depression and anxiety in dementia: an integrated approach

2020

Conference Publication

Emotional inhibition in Parkinson’s disease: a HD-EEG ERP study

Su, P., Hennessy, D., Au, T. R., Angwin, A. J., Iyer, K., Yang, J. H., Copland, D. A., O'Sullivan, J. D. and Dissanayaka, N. N. (2020). Emotional inhibition in Parkinson’s disease: a HD-EEG ERP study. Herston Health Precinct Symposium 2020, Brisbane, QLD Australia, 7-11 December 2020.

Emotional inhibition in Parkinson’s disease: a HD-EEG ERP study

2020

Conference Publication

How do staff report and manage perceived behaviours of concern with Residential Aged Care?; An evaluation of eHealth system report logs

Brimelow, R., Byrne, G.J., Beattie, E. and Dissanayaka, N. (2020). How do staff report and manage perceived behaviours of concern with Residential Aged Care?; An evaluation of eHealth system report logs. 5th Annual NHMRC National Institute for Dementia Research (NNIDR) Australian Dementia Forum, Adelaide, Australia, 31 May - 2 June 2020.

How do staff report and manage perceived behaviours of concern with Residential Aged Care?; An evaluation of eHealth system report logs

2020

Conference Publication

Virtual Reality Assisted Psychotherapy for Anxiety in Dementia

Pacas Fronza, G. and Dissanayaka, N. (2020). Virtual Reality Assisted Psychotherapy for Anxiety in Dementia. 5th Annual NHMRC National Institute for Dementia Research (NNIDR) Australian Dementia Forum, Adelaide, Australia, 31 May - 2 June 2020.

Virtual Reality Assisted Psychotherapy for Anxiety in Dementia

2020

Conference Publication

Anxiety is associated with verbal memory impairment in Parkinson’s disease

Forbes, E. J., Byrne, G. J., Yang, J. H., O'Sullivan, J., Copland, D. A., McMahon, K. L., Mitchell, L. M. and Dissanayaka, N. N. (2020). Anxiety is associated with verbal memory impairment in Parkinson’s disease. Australian Dementia Forum, Adelaide, SA, Australia, 31 May – 2 June 2020. Canberra, ACT, Australia: NHMRC National Institute for Dementia Research (NNIDR).

Anxiety is associated with verbal memory impairment in Parkinson’s disease

2020

Conference Publication

Neural correlates of semantic fluency deficits in Parkinson's Disease with mild cognitive impairment

Yang, J., Copland, D., McMahon, K., Byrne, G., O'Sullivan, J. and Dissanayaka, N.N. (2020). Neural correlates of semantic fluency deficits in Parkinson's Disease with mild cognitive impairment. MDS Virtual Congress 2020, Online, 12-16 September 2020.

Neural correlates of semantic fluency deficits in Parkinson's Disease with mild cognitive impairment

2020

Conference Publication

Anxiety is associated with verbal memory impairment in Parkinson’s disease

Forbes, E., Byrne, G.J., Yang, J.H.J., O'Sullivan, J., Copland, D.A., McMahon, K.L., Mitchell, L.K. and Dissanayaka, N.N. (2020). Anxiety is associated with verbal memory impairment in Parkinson’s disease. 53rd Australian Association of Gerontology (AAG) Conference, Online, 18-20 November 2020.

Anxiety is associated with verbal memory impairment in Parkinson’s disease

2020

Conference Publication

Tele-CBT: Telehealth videoconference assisted psychotherapy for anxiety in people with cognitive impairment

Pacas Fronza, G., Mitchell, L.K., Pachana, N.A., Byrne, G.J., Wuthrich, V. and Dissanayaka, N.N. (2020). Tele-CBT: Telehealth videoconference assisted psychotherapy for anxiety in people with cognitive impairment. Macquarie University BioNetwork 3rd Annual Research Symposium on Dementia, Online, 14-15 September 2020.

Tele-CBT: Telehealth videoconference assisted psychotherapy for anxiety in people with cognitive impairment

2019

Journal Article

Preliminary Research: Virtual Reality in Residential Aged Care to reduce apathy and improve mood

Brimelow, Rachel E., Dawe, Bronwyn and Dissanayaka, Nadeeka (2019). Preliminary Research: Virtual Reality in Residential Aged Care to reduce apathy and improve mood. Cyberpsychology, Behavior, and Social Networking, 23 (3), 165-170. doi: 10.1089/cyber.2019.0286

Preliminary Research: Virtual Reality in Residential Aged Care to reduce apathy and improve mood

2019

Journal Article

Report from a multidisciplinary meeting on anxiety as a non-motor manifestation of Parkinson's disease

Pontone, Gregory M., Dissanayaka, Nadeeka, Apostolova, Liana, Brown, Richard G., Dobkin, Roseanne, Dujardin, Kathy, Friedman, Joseph H., Leentjens, Albert F. G., Lenze, Eric J., Marsh, Laura, Mari, Lynda, Monchi, Oury, Richard, Irene H., Schrag, Anette, Strafella, Antonio P., Vernaleo, Beth, Weintraub, Daniel and Mari, Zoltan (2019). Report from a multidisciplinary meeting on anxiety as a non-motor manifestation of Parkinson's disease. Npj Parkinsons Disease, 5 (1) 30, 30. doi: 10.1038/s41531-019-0102-8

Report from a multidisciplinary meeting on anxiety as a non-motor manifestation of Parkinson's disease

2019

Journal Article

Factors related to sleep disturbances for individuals with Parkinson's disease: A regional perspective

Wade, Rachael, Pachana, Nancy A., Mellick, George and Dissanayaka, Nadeeka (2019). Factors related to sleep disturbances for individuals with Parkinson's disease: A regional perspective. International Psychogeriatrics, 32 (7) PII S1041610219001212, 1-12. doi: 10.1017/S1041610219001212

Factors related to sleep disturbances for individuals with Parkinson's disease: A regional perspective

2019

Journal Article

Protocol: using N-of-1 tests to identify responders to melatonin for sleep disturbance in Parkinson's disease

Nikles, J., O'Sullivan, J. D., Mitchell, G. K., Smith, S. S., McGree, J. M., Senior, H., Dissanyaka, N. and Ritchie, A. (2019). Protocol: using N-of-1 tests to identify responders to melatonin for sleep disturbance in Parkinson's disease. Contemporary Clinical Trials Communications, 15 100397, 100397. doi: 10.1016/j.conctc.2019.100397

Protocol: using N-of-1 tests to identify responders to melatonin for sleep disturbance in Parkinson's disease

2019

Journal Article

Shaping attitudes: the association between prior contact with residential aged care and resistance to enter residential aged care

Walker, Nicole, Dissanayaka, Nadeeka N., Scott, Theresa, Manchha, Asmita and Pachana, Nancy A. (2019). Shaping attitudes: the association between prior contact with residential aged care and resistance to enter residential aged care. International Journal of Older People Nursing, 14 (4) e12268, e12268. doi: 10.1111/opn.12268

Shaping attitudes: the association between prior contact with residential aged care and resistance to enter residential aged care

2019

Journal Article

The CuePed Trial: how does environmental complexity impact cue effectiveness? A comparison of tonic and phasic visual cueing in simple and complex environments in a Parkinson’s Disease population with freezing of gait

Marsh, Rodney, Cole, Michael H., Dissanayaka, Nadeeka N. W., Au, Tiffany R., Clewett, Sandra, O’Sullivan, John D. and Silburn, Peter A. (2019). The CuePed Trial: how does environmental complexity impact cue effectiveness? A comparison of tonic and phasic visual cueing in simple and complex environments in a Parkinson’s Disease population with freezing of gait. Parkinson's Disease, 2019 2478980, 1-6. doi: 10.1155/2019/2478980

The CuePed Trial: how does environmental complexity impact cue effectiveness? A comparison of tonic and phasic visual cueing in simple and complex environments in a Parkinson’s Disease population with freezing of gait

2019

Journal Article

Source activity during emotion processing and its relationship to cognitive impairment in Parkinson's disease

Iyer, Kartik K., Au, Tiffany R., Angwin, Anthony J., Copland, David A. and Dissanayaka, Nadeeka N.W. (2019). Source activity during emotion processing and its relationship to cognitive impairment in Parkinson's disease. Journal of Affective Disorders, 253, 327-335. doi: 10.1016/j.jad.2019.05.012

Source activity during emotion processing and its relationship to 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

    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

    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

    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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