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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

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

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

Telehealth Cognitive Behavior Therapy to Reduce Anxiety in People Living with Cognitive Impairment: A Randomized Feasibility Pilot Study

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

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

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

Levetiracetam for the treatment of mild cognitive impairment in Parkinson's disease: a double-blind controlled proof-of-concept trial protocol

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

Longitudinal follow up of data‐driven cognitive subtypes in Parkinson's disease

2023

Journal Article

Global assessment, cognitive profile, and characteristics of mild cognitive impairment in Parkinson's disease

Yang, Jihyun, Pourzinal, Dana, Byrne, Gerard J., McMahon, Katie L., Copland, David A., O’Sullivan, John D., Mitchell, Leander and Dissanayaka, Nadeeka N. (2023). Global assessment, cognitive profile, and characteristics of mild cognitive impairment in Parkinson's disease. International Journal of Geriatric Psychiatry, 38 (6) e5955, e5955. doi: 10.1002/gps.5955

Global assessment, cognitive profile, and characteristics of mild cognitive impairment in Parkinson's disease

2022

Journal Article

Systematic review of data‐driven cognitive subtypes in Parkinson’s disease

Pourzinal, Dana, Yang, Jihyun, Lawson, Rachael A., McMahon, Katie L., Byrne, Gerard J. and Dissanayaka, Nadeeka N. (2022). Systematic review of data‐driven cognitive subtypes in Parkinson’s disease. European Journal of Neurology, 29 (11), 3395-3417. doi: 10.1111/ene.15481

Systematic review of data‐driven cognitive subtypes in Parkinson’s disease

2022

Journal Article

Semantic fluency deficits and associated brain activity in Parkinson’s disease with mild cognitive impairment

Yang, Jihyun, McMahon, Katie L., Copland, David A., Pourzinal, Dana, Byrne, Gerard J., Angwin, Anthony J., O’Sullivan, John D. and Dissanayaka, Nadeeka N (2022). Semantic fluency deficits and associated brain activity in Parkinson’s disease with mild cognitive impairment. Brain Imaging and Behavior, 16 (6), 1-12. doi: 10.1007/s11682-022-00698-7

Semantic fluency deficits and associated brain activity in Parkinson’s disease with mild cognitive impairment

2022

Journal Article

The Attention Network Test in Parkinson and Lewy body disease: a systematic review

Yang, Jihyun, Pourzinal, Dana, Rheinberger, Toby, Copland, David A., McMahon, Katie L., Byrne, Gerard J. and Dissanayaka, Nadeeka N. (2022). The Attention Network Test in Parkinson and Lewy body disease: a systematic review. Cognitive and Behavioral Neurology, 35 (1), 1-13. doi: 10.1097/WNN.0000000000000292

The Attention Network Test in Parkinson and Lewy body disease: a systematic review

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

Anxiety disorders are associated with verbal memory impairment in patients with Parkinson’s disease without dementia

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

Hippocampal correlates of episodic memory in Parkinson's disease: A systematic review of magnetic resonance imaging studies

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

Neural correlates of attentional deficits in Parkinson’s disease patients with mild cognitive impairment

2020

Journal Article

Identifying subtypes of mild cognitive impairment in Parkinson’s disease using cluster analysis

Pourzinal, Dana, Yang, Ji Hyun J., Byrne, Gerard J., O’Sullivan, John D., Mitchell, Leander, McMahon, Katie L., Copland, David A. and Dissanayaka, Nadeeka N. (2020). Identifying subtypes of mild cognitive impairment in Parkinson’s disease using cluster analysis. Journal of Neurology, 267 (11), 3213-3222. doi: 10.1007/s00415-020-09977-z

Identifying subtypes of mild cognitive impairment in Parkinson’s disease using cluster analysis