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Articles
September 20, 2010

Mild cognitive impairment in Parkinson disease
A multicenter pooled analysis

September 21, 2010 issue
75 (12) 1062-1069

Abstract

Background: In studies of mild cognitive impairment (MCI) in Parkinson disease (PD), patients without dementia have reported variable prevalences and profiles of MCI, likely to be due to methodologic differences between the studies.
Objective: The objective of this study was to determine frequency and the profile of MCI in a large, multicenter cohort of well-defined patients with PD using a standardized analytic method and a common definition of MCI.
Methods: A total of 1,346 patients with PD from 8 different cohorts were included. Standardized analysis of verbal memory, visuospatial, and attentional/executive abilities was performed. Subjects were classified as having MCI if their age- and education-corrected z score on one or more cognitive domains was at least 1.5 standard deviations below the mean of either control subjects or normative data.
Results: A total of 25.8% of subjects (95% confidence interval [CI] 23.5–28.2) were classified as having MCI. Memory impairment was most common (13.3%; 11.6–15.3), followed by visuospatial (11.0%; 9.4–13.0) and attention/executive ability impairment (10.1%; 8.6–11.9). Regarding cognitive profiles, 11.3% (9.7–13.1) were classified as nonamnestic single-domain MCI, 8.9% (7.0–9.9) as amnestic single-domain, 4.8% (3.8–6.1) as amnestic multiple-domain, and 1.3% (0.9–2.1) as nonamnestic multiple-domain MCI. Having MCI was associated with older age at assessment and at disease onset, male gender, depression, more severe motor symptoms, and advanced disease stage.
Conclusions: MCI is common in patients with PD without dementia, affecting a range of cognitive domains, including memory, visual-spatial, and attention/executive abilities. Future studies of patients with PD with MCI need to determine risk factors for ongoing cognitive decline and assess interventions at a predementia stage.

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REFERENCES

1.
Janvin CC, Larsen JP, Aarsland D, Hugdahl K. Subtypes of mild cognitive impairment in Parkinson's disease: progression to dementia. Mov Disord 2006;21:1343–1349.
2.
Williams-Gray CH, Foltynie T, Brayne CE, Robbins TW, Barker RA. Evolution of cognitive dysfunction in an incident Parkinson's disease cohort. Brain 2007;130:1787–1798.
3.
Williams-Gray CH, Evans JR, Goris A, et al. The distinct cognitive syndromes of Parkinson's disease: 5 year follow-up of the CamPaIGN cohort. Brain 2009;132:2958–2969.
4.
Janvin C, Aarsland D, Larsen JP, Hugdahl K. Neuropsychological profile of patients with Parkinson's disease without dementia. Dement Geriatr Cogn Disord 2003;15:126–131.
5.
Alves G, Muller B, Herlofson K, et al. Incidence of Parkinson's disease in Norway: the Norwegian ParkWest study. J Neurol Neurosurg Psychiatry 2009;80:851–857.
6.
Levy G, Jacobs DM, Tang MX, et al. Memory and executive function impairment predict dementia in Parkinson's disease. Mov Disord 2002;17:1221–1226.
7.
Allcock LM, Kenny RA, Mosimann UP, et al. Orthostatic hypotension in Parkinson's disease: association with cognitive decline? Int J Geriatr Psychiatry 2006;21:778–783.
8.
Weintraub D, Moberg PJ, Culbertson WC, Duda JE, Katz IR, Stern MB. Dimensions of executive function in Parkinson's disease. Dement Geriatr Cogn Disord 2005;20:140–144.
9.
Pagonabarraga J, Kulisevsky J, Llebaria G, Garcia-Sanchez C, Pascual-Sedano B, Gironell A. Parkinson's disease-cognitive rating scale: a new cognitive scale specific for Parkinson's disease. Mov Disord 2008;23:998–1005.
10.
Llebaria G, Pagonabarraga J, Kulisevsky J, et al. Cut-off score of the Mattis Dementia Rating Scale for screening dementia in Parkinson's disease. Mov Disord 2008;23:1546–1550.
11.
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders: DSM-IV (Text Revision). Washington, DC: American Psychiatric Association; 2000.
12.
Emre M, Aarsland D, Brown R, et al. Clinical diagnostic criteria for dementia associated with Parkinson's disease. Mov Disord 2007;22:1689–1707.
13.
Folstein MF, Folstein SE, McHugh PR. “Mini-mental state”: a practical method for grading the cognitive state of patients for the clinician. J Psychiatr Res 1975;12:189–198.
14.
Allcock LM, Ullyart K, Kenny RA, Burn DJ. Frequency of orthostatic hypotension in a community based cohort of patients with Parkinson's disease. J Neurol Neurosurg Psychiatry 2004;75:1470–1471.
15.
Dubois B, Burn D, Goetz C, et al. Diagnostic procedures for Parkinson's disease dementia: recommendations from the movement disorder society task force. Mov Disord 2007;22:2314–2324.
16.
Schrag A, Barone P, Brown RG, et al. Depression rating scales in Parkinson's disease: critique and recommendations. Mov Disord 2007;22:1077–1092.
17.
Mattis S. Dementia Rating Scale. In: Bellak L, Karasu TB, eds. Geriatric Psychiatry: A Handbook for Psychiatrists and Primary Care Physicians. New York: Grune and Stratton; 1976.
18.
Aarsland D, Bronnick K, Larsen JP, Tysnes OB, Alves G. Cognitive impairment in incident, untreated Parkinson disease: the Norwegian ParkWest study. Neurology 2009;72:1121–1126.
19.
Winblad B, Palmer K, Kivipelto M, et al. Mild cognitive impairment: beyond controversies, towards a consensus: report of the International Working Group on Mild Cognitive Impairment. J Intern Med 2004;256:240–246.
20.
Troster AI. Neuropsychological characteristics of dementia with Lewy bodies and Parkinson's disease with dementia: differentiation, early detection, and implications for “mild cognitive impairment” and biomarkers. Neuropsychol Rev 2008;18:103–119.
21.
Dubois B. Is PD-MCI a useful concept? Mov Disord 2007;22:1215–1216.
22.
Weintraub D, Moberg PJ, Culbertson WC, Duda JE, Stern MB. Evidence for impaired encoding and retrieval memory profiles in Parkinson disease. Cogn Behav Neurol 2004;17:195–200.
23.
Whittington CJ, Podd J, Stewart-Williams S. Memory deficits in Parkinson's disease. J Clin Exp Neuropsychol 2006;28:738–754.
24.
Kulisevsky J, Pagonabarraga J. Cognitive impairment in Parkinson's disease: tools for diagnosis and assessment. Mov Disord 2009;24:1103–1110.
25.
Santangelo G, Trojano L, Vitale C, et al. A neuropsychological longitudinal study in Parkinson's patients with and without hallucinations. Mov Disord 2007;22:2418–2425.
26.
Petersen RC, Smith GE, Waring SC, Ivnik RJ, Tangalos EG, Kokmen E. Mild cognitive impairment: clinical characterization and outcome. Arch Neurol 1999;56:303–308.
27.
Caviness JN, Driver-Dunckley E, Connor DJ, et al. Defining mild cognitive impairment in Parkinson's disease. Mov Disord 2007;22:1272–1277.
28.
Aarsland D, Ballard C, Walker Z, et al. Memantine in patients with Parkinson's disease dementia or dementia with Lewy bodies: a double-blind, placebo-controlled, multicentre trial. Lancet Neurol 2009;8:613–618.
29.
Emre M, Aarsland D, Albanese A, et al. Rivastigmine for dementia associated with Parkinson's disease. N Engl J Med 2004;351:2509–2518.
30.
Hughes AJ, Daniel SE, Kilford L, Lees AJ. Accuracy of clinical diagnosis of idiopathic Parkinson's disease: a clinico-pathological study of 100 cases. J Neurol Neurosurg Psychiatry 1992;55:181–184.
31.
Gelb DJ, Oliver E, Gilman S. Diagnostic criteria for Parkinson disease. Arch Neurol 1999;56:33–39.
32.
Larsen JP, Dupont E, Tandberg E. Clinical diagnosis of Parkinson's disease: proposal of diagnostic subgroups classified at different levels of confidence. Acta Neurol Scand 1994;89:242–251.

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Published In

Neurology®
Volume 75Number 12September 21, 2010
Pages: 1062-1069
PubMed: 20855849

Publication History

Published online: September 20, 2010
Published in print: September 21, 2010

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Keyword

  1. aMCI-MD = amnestic multiple-domain MCI; aMCI-SD = amnestic single-domain MCI; CI = confidence interval; DSM-IV = Diagnostic and Statistical Manual of Mental Disorders, 4th edition; MCI = mild cognitive impairment; MMSE = Mini-Mental State Examination; naMCI-MD = nonamnestic multiple-domain MCI; naMCI-SD = nonamnestic single-domain MCI; PD = Parkinson disease; PD-CRS = Parkinson's Disease Cognitive Rating Scale; UPDRS = Unified Parkinson's Disease Rating Scale.

Authors

Affiliations & Disclosures

D. Aarsland, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
K. Bronnick, PhD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
C. Williams-Gray, MRCP, PhD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
D. Weintraub, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
K. Marder, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
J. Kulisevsky, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
D. Burn, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
P. Barone, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
J. Pagonabarraga, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
L. Allcock, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
G. Santangelo, PhD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
T. Foltynie, PhD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
C. Janvin, PhD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
J.P. Larsen, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
R.A. Barker, MRCP, PhD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.
M. Emre, MD
From the Psychiatric Division (D.A., C.J.) and The Norwegian Centre for Movement Disorders (K.B., J.P.L.), Stavanger University Hospital, Stavanger; Division of Mental Health Services (D.A.), Akershus University Hospital, and University of Oslo, Oslo, Norway; Centre for Brain Repair (C.W.-G., R.A.B.), Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Department of Psychiatry and Neurology (D.W.), University of Pennsylvania, Philadelphia; Parkinson's Disease and Mental Illness Research, Education and Clinical Center (PADRECC and MIRECC), Philadelphia Veterans Affairs Medical Center, Philadelphia, PA; Department of Neurology (K.M.), Columbia University College of Physicians and Surgeons, New York, NY; Movement Disorders Unit (J.K., J.P.), Neurology Department, Sant Pau Hospital, Autonomous University of Barcelona and CIBERNED (Centro de Investigaciones Biomédicas en Red Enfermedades Neurodegenerativas), Barcelona, Spain; Institute for Ageing and Health (D.B., L.A.), Newcastle University, Newcastle, UK; Department of Neurological Sciences–ICD Hermitage Capodimonte (P.B., G.S.), Naples, Italy; Sobell Department of Motor Neuroscience and Movement Disorders (T.F.), Institute of Neurology, University College London, UK; and Istanbul University (M.E.), Istanbul Faculty of Medicine, Department of Neurology, Behavioural Neurology and Movement Disorders Unit, Istanbul, Turkey.

Notes

Address correspondence and reprint requests to Dr. Dag Aarsland, Stavanger University Hospital, Psychiatric Division, PO Box 8100, 4068 Stavanger, Norway [email protected]

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  3. Central treatment of neuropeptide-S attenuates cognitive dysfunction and hippocampal synaptic plasticity impairment by increasing CaMKII/GluR1 in hemiparkinsonian rats, Neuroscience, 564, (194-201), (2025).https://doi.org/10.1016/j.neuroscience.2024.11.021
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  5. An Acetylcholine M 1 Receptor–Positive Allosteric Modulator (TAK-071) in Parkinson Disease With Cognitive Impairment , JAMA Neurology, 82, 2, (152), (2025).https://doi.org/10.1001/jamaneurol.2024.4519
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  6. The Effects of Neurofeedback Training in Patients with Parkinson’s Disease, Neuromuscular Diseases - How to Recognize and Treat Them [Working Title], (2024).https://doi.org/10.5772/intechopen.1006486
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  7. Cardiovascular dysautonomia and cognitive impairment in Parkinson's disease (Review), Medicine International, 4, 6, (2024).https://doi.org/10.3892/mi.2024.194
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  8. α-Synuclein Oligomers in Skin Biopsies Predict the Worsening of Cognitive Functions in Parkinson’s Disease: A Single-Center Longitudinal Cohort Study, International Journal of Molecular Sciences, 25, 22, (12176), (2024).https://doi.org/10.3390/ijms252212176
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  9. GBA1-Associated Parkinson’s Disease Is a Distinct Entity, International Journal of Molecular Sciences, 25, 13, (7102), (2024).https://doi.org/10.3390/ijms25137102
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  10. Predicting the occurrence of mild cognitive impairment in Parkinson’s disease using structural MRI data, Frontiers in Neuroscience, 18, (2024).https://doi.org/10.3389/fnins.2024.1375395
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