Overview
Background
Associate Professor Nadeeka Dissanayaka is a NHMRC Boosting Dementia Research Leadership 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 an honorary research fellow at Department of Neurology, Royal Brisbane & Women’s Hospital. 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 A/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
- Associate 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: A/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: A/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: A/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: A/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. A/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. A/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
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, 115002. doi: 10.1088/1361-6579/ad8f8f
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
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 & Dementia: Diagnosis, Assessment & Disease Monitoring, 16 (3) e12625, e12625. doi: 10.1002/dad2.12625
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.
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.
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.
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.
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.
2024
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. (2024). Telehealth Cognitive Behavior Therapy to Reduce Anxiety in People Living with Cognitive Impairment: A Randomized Feasibility Pilot Study. Clinical Gerontologist, 1-15. doi: 10.1080/07317115.2024.2336187
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, e3454. doi: 10.1002/brb3.3454
2024
Journal Article
Face and content validity of a mobile delirium screening tool adapted for use in the medical setting (eDIS‐MED): Welcome to the machine
Eeles, Eamonn, Tronstad, Oystein, Teodorczuk, Andrew, Flaws, Dylan, Fraser, John F. and Dissanayaka, Nadeeka (2024). Face and content validity of a mobile delirium screening tool adapted for use in the medical setting (eDIS‐MED): Welcome to the machine. Australasian Journal on Ageing, 43 (2), 415-419. doi: 10.1111/ajag.13288
2024
Journal Article
Measuring Phenomenal Consciousness in Delirium: The New Black
Eeles, Eamonn, Teodorczuk, Andrew and Dissanayaka, Nadeeka (2024). Measuring Phenomenal Consciousness in Delirium: The New Black. Journal of Consciousness Studies, 31 (1), 31-50. doi: 10.53765/20512201.31.1.031
2024
Journal Article
Prototype development of the Mental Health benchmarking Industry Tool for residential aged Care (MHICare Tool): a protocol paper of a two-stage sequential and mixed methods codesign study
Brimelow, Rachel, Brooks, Deborah, Sriram, Deepa, Burley, Claire, Beattie, Elizabeth, Byrne, Gerard and Dissanayaka, Nadeeka (2024). Prototype development of the Mental Health benchmarking Industry Tool for residential aged Care (MHICare Tool): a protocol paper of a two-stage sequential and mixed methods codesign study. BMJ Open, 14 (2) e078493, 1-7. doi: 10.1136/bmjopen-2023-078493
2024
Journal Article
Feasibility and acceptability of a videoconferencing CBT intervention for anxiety in people with Parkinson’s Disease
Roper, Amy, Brooks, Deborah, Mitchell, Leander K., Pachana, Nancy A., Au, Tiffany R., Byrne, Gerard J., O’Sullivan, John D. and Dissanayaka, Nadeeka N. (2024). Feasibility and acceptability of a videoconferencing CBT intervention for anxiety in people with Parkinson’s Disease. Clinical Gerontologist, 1-16. doi: 10.1080/07317115.2024.2306861
2024
Conference Publication
Verbal fluency correlates with medial temporal lobe volumes in Parkinson’s disease with memory impairment
Yang, J., Pourzinal, D. and Dissanayaka, N. (2024). Verbal fluency correlates with medial temporal lobe volumes in Parkinson’s disease with memory impairment. Australian Dementia Research Forum 2024, Gold Coast, QLD Australia, 3-5 June 2024.
2024
Conference Publication
“It’s really important that we do have a voice.” Residents’ perspectives on the factors that promote and support mental health within aged care homes
Brooks, D., Burley, C., Sriram, D., Brimelow, R. and Dissanayaka, N. (2024). “It’s really important that we do have a voice.” Residents’ perspectives on the factors that promote and support mental health within aged care homes. Australian Dementia Research Forum 2024, Gold Coast, QLD Australia, 3-5 June 2024.
2023
Journal Article
A narrative review of the development and performance characteristics of electronic delirium-screening tools
Eeles, Eamonn, Tran, David Duc, Boyd, Jemima, Tronstad, Oystein, Teodorczuk, Andrew, Flaws, Dylan, Fraser, John F. and Dissanayaka, Nadeeka (2023). A narrative review of the development and performance characteristics of electronic delirium-screening tools. Australian Critical Care, 37 (4), 651-658. doi: 10.1016/j.aucc.2023.11.006
2023
Journal Article
Levetiracetam for the treatment of mild cognitive impairment in Parkinson's disease: a double-blind controlled proof-of-concept trial protocol
Dissanayaka, Nadeeka, Pourzinal, Dana, Byrne, Gerard J., Yang, Jihyun, McMahon, Katie L., Pontone, Gregory M., O'Sullivan, John D., Adam, Robert, Littleford, Roberta, Chatfield, Mark, Lehn, Alexander, Mari, Zoltan and Bakker, Arnold (2023). Levetiracetam for the treatment of mild cognitive impairment in Parkinson's disease: a double-blind controlled proof-of-concept trial protocol. Pilot and Feasibility Studies, 9 (1) 189, 189. doi: 10.1186/s40814-023-01406-y
2023
Journal Article
Optimising verbal fluency analysis in neurological patients with dysarthria: examples from Parkinson’s disease and hereditary ataxia
Li, Yanjun, Yang, Jihyun, Evans, Kristine, Wong, Jasmine Bow-Wah, Dissanayaka, Nadeeka N. and Vogel, Adam P. (2023). Optimising verbal fluency analysis in neurological patients with dysarthria: examples from Parkinson’s disease and hereditary ataxia. Journal of Clinical and Experimental Neuropsychology, 45 (5), 452-463. doi: 10.1080/13803395.2023.2249172
2023
Journal Article
Longitudinal follow up of data‐driven cognitive subtypes in Parkinson's disease
Pourzinal, Dana, Yang, Jihyun, Sivakumaran, Kumareshan, McMahon, Katie L., Mitchell, Leander, O'Sullivan, John D., Byrne, Gerard J. and Dissanayaka, Nadeeka N. (2023). Longitudinal follow up of data‐driven cognitive subtypes in Parkinson's disease. Brain and Behavior, 13 (10) e3218, e3218. doi: 10.1002/brb3.3218
Funding
Current funding
Supervision
Availability
- Associate 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
Business models and implementation roadmap for rapid translation of PDCogniCare Intervention into healthcare
Principal Advisor
Other advisors: Professor Martie-Louise Verreynne, Dr 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
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
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
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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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: Dr Theresa Scott, Professor Nancy Pachana
Media
Enquiries
Contact Associate 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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