
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
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
2021
Journal Article
Neural correlates of attentional deficits in Parkinson’s disease patients with mild cognitive impairment
Yang, Jihyun, Pourzinal, Dana, McMahon, Katie L., Byrne, Gerard J., Copland, David A., O’Sullivan, John D. and Dissanayaka, Nadeeka N. (2021). Neural correlates of attentional deficits in Parkinson’s disease patients with mild cognitive impairment. Parkinsonism and Related Disorders, 85, 17-22. doi: 10.1016/j.parkreldis.2021.02.009
2021
Conference Publication
Involvement of cerebellum during task based and resting state fMRI in Parkinson’s disease with mild cognitive impairment
Yang, J., Byrne, G., McMahon, K., Copland, D., O’Sullivan, J. and Dissanayaka, N. (2021). Involvement of cerebellum during task based and resting state fMRI in Parkinson’s disease with mild cognitive impairment. Australia Dementia Forum 2021, Online, 31 May-1 June 2021.
2021
Book Chapter
Anxiety in Parkinson’s disease
Dissanayaka, N. N. W. (2021). Anxiety in Parkinson’s disease. Anxiety in older people: clinical and research perspectives. (pp. 139-156) edited by Gerard J. Byrne and Nancy A. Pachana. Cambridge, United Kingdom: Cambridge University Press.
2021
Conference Publication
Changes in the cerebellar activity during task based and resting state fMRI in Parkinson’s disease patients with mild cognitive impairment
Yang, J., Byrne, G., McMahon, K., Copland, D., O’Sullivan, J. and Dissanayaka, N. (2021). Changes in the cerebellar activity during task based and resting state fMRI in Parkinson’s disease patients with mild cognitive impairment. MDS Virtual Congress 2021, Online, 17 - 22 September 2021. Hoboken, NJ, United States: John Wiley & Sons.
2021
Conference Publication
Systematic review of Magnetic Resonance Imaging studies exploring hippocampal correlates of episodic memory in Parkinson’s disease
Pourzinal, D., Yang, J., Bakker, A., McMahon, K. L., Byrne, G. J., Pontone, G., Mari, Z. and Dissanayaka, N. (2021). Systematic review of Magnetic Resonance Imaging studies exploring hippocampal correlates of episodic memory in Parkinson’s disease. 6th Pacific Rim Conference 2021, Melbourne, VIC, Australia, 30 Jun-3 Jul 2021.
2021
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. (2021). Semantic fluency and its associated brain activity in Parkinson’s disease with mild cognitive impairment. Australia Dementia Forum 2021, Online, 31 May-1 June 2021.
2021
Conference Publication
Investigating resting state functional connectivity in sub-phenotypes of mild cognitive impairment in Parkinson’s disease
Pourzinal, D., Yang, J.H., Byrne, G.J., O’Sullivan, J.D., McMahon, K., Copland, D.A. and Dissanayaka, N. (2021). Investigating resting state functional connectivity in sub-phenotypes of mild cognitive impairment in Parkinson’s disease. Australia Dementia Forum 2021, Online, 31 May – 1 June 2021.
2021
Conference Publication
Towards better mental health within residential aged care: formulation of a performance measurement tool to aid organisational governance
Brimelow, R., Byrne, G., Beattie, E. and Dissanayaka, N. (2021). Towards better mental health within residential aged care: formulation of a performance measurement tool to aid organisational governance. Australian Dementia Forum 2021, Online, 31 May-1 June 2021.
Funding
Current funding
Supervision
Availability
- Professor Nadeeka Dissanayaka is:
- Available for supervision
Before you email them, read our advice on how to contact 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: Professor Gerard Byrne, 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
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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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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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Doctor Philosophy
Physiologic Signal Correlates of Vigilance Related Cognitive Decline in Patients with Obstructive Sleep Apnoea
Associate Advisor
Other advisors: Dr Udantha Abeyratne
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: Professor Gerard Byrne, 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: Professor Gerard Byrne, 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
Other advisors: Professor Gerard Byrne
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2020
Doctor Philosophy
Markers and Mechanisms of Mild Cognitive Impairment in Parkinson's disease
Principal Advisor
Other advisors: Professor Gerard Byrne, Professor David Copland
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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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