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: Prof Dissanayaka is the principal investigator (CIA) of 2 large MRFF funded (>$3.6 million) research programs focused on improving diagnosis of dementia in Parkinson's disease (PDCogniCare) and technology assisted psychotherapy in dementia (MyAnxietyCare). Her other programs include Mental Health Benchmarking Industry Tool for Residential Aged Care (MHICare), Improving Diagnosis and Treatment of Anxiety in Parkinson’s disease (IDATA-PD), Virtual reality assisted psychotherapy for aged care (VR AgedCare), Parkinson's disease (VRAPD) and dementia (Tech-CBT), Uncovering a Therapeutic Marker to Reduce the Risk of Dementia in Parkinson's disease (TRIP), and digital delium hub. She is the developer of a new Parkinson’s disease-specific anxiety inventory (PDSAI) and co-author of 5 new psychotherapy manuals including cognitive behavioural therapy and mindfulness therapy. She is first author of the top cited publication for “Anxiety in Parkinson’s disease”, an author of book chapters titled “Anxiety in Parkinson’s disease” in “Anxiety in Older People: Clinical and Research Perspectives”, and "Progressive Neurologocal Conditions and Their Impact on Psychological Well-being in Later Life". She is lead collaborator of the international working groups focused on anxiety in Parkinson’s disease and MRI in Parkinson's disease. Her publications record over the past 10 years places her in the top 10% of the Associate Professors in the relevant field of Psychology according to the Go8 Universities productivity and citations.
Grants and Awards: Prof. Dissanayaka has received continuous funding via 3 competitive fellowships (including NHMRC) and 25 competitive research grants (>90% lead investigator). Her grant record includes international awards such as the prestigious NARSAD Young Investigator International award 2018 from the United States Brain & Behaviour Research Foundation. She is also a recipient of 2 Outstanding Young Researcher Awards in 2013, 2015 & 2023, Oustanding UQCCR PhD Supervisor Award in 2020, and the Faculty of Medicine Future Leaders Award in 2021.
Supervision: Prof. Dissanayaka holds an outstanding record of supervision in disciplines of Psychology, Medicine, Biomedical Sciences, and Pharmacy, and has supervised over 100 students, >10 postdocs and 7 Research assistants. Under her primary supervision, 23 students completed research thesis (6 PhD, 8 DPsyc, 3 MPsyc and 6 Honours) and >45 Psychology Advanced Trainees within research capacity.
Community Engagement and Professional Involvement: Prof. Dissanayaka is an author of >150 conference abstracts, >50 invited seminars, and >25 media reports. She is an advocate for the Lions Medical Research Foundation, and Royal Brisbane & Woman's Hospital Foundation. Prof. Dissanayaka was a member of the UQ Low and Negligible Risk Ethics Committee, and UQCCR Career Development Committee. She is chair of the UQCCR Research Committee. She established and led the UQCCR Consumer & Communittee Involvement (CCI) Committee, and also a member of the Faculty of Medicine CCI working group. Prof. Dissanayaka was the current chair of the Dementia Centre for Research Collaboration Anxiety and Depression in Dementia Research Network, and co-chair of the Australian Dementia Network (ADNet) Early/ Mid career researcher Accelerator group. Her international recognition is supported by the leadership in Parkinson's disease MRI consortium, and Anxiety in Parkinson's disease consortium. She is a current member of the Australian Cognitive Neurosciences Society, and International Movement Disorders Society, a peer reviewer for >20 journals, and a grant reviewer for NHMRC.
Works
Search Professor Nadeeka Dissanayaka’s works on UQ eSpace
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. doi: 10.3389/fdgth.2025.1681221
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
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
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.
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, 105768. doi: 10.1016/j.jamda.2025.105768
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
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.
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.
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.
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
2025
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. (2025). Evaluating evidence for a neuropsychological toolkit to predict cognitive decline in PD: a systematic review. The Clinical Neuropsychologist, 1-28. doi: 10.1080/13854046.2025.2511966
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
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
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
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 14713012251334170, 1-19. doi: 10.1177/14713012251334170
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), 8919887251332660-361. doi: 10.1177/08919887251332660
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
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
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
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
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
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
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
Dopaminergic regulation of new word learning
Associate Advisor
Other advisors: Professor David Copland, Associate Professor Anthony Angwin
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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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: Dr 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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