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Chen Y, Guo Z, Wang Y, Yin H, Zhang S, Liu W. Structural and functional differences of the thalamus between drug-naïve Parkinson's disease motor subtypes. Front Neurol 2023; 14:1102927. [PMID: 37265464 PMCID: PMC10229767 DOI: 10.3389/fneur.2023.1102927] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 04/24/2023] [Indexed: 06/03/2023] Open
Abstract
Objective The thalamus is an integrative hub of motor circuits in Parkinson's disease (PD). This study aimed to investigate the alterations of structure and functional connectivity (FC) of the thalamic subregions in the tremor-dominant (TD) subtype and the postural instability and gait difficulty (PIGD) subtype in PD. Methods A total of 59 drug-naïve patients (24 TD and 35 PIGD) and 37 healthy controls were recruited. The volumes of the thalamus and the thalamic subregions were calculated using FreeSurfer. Functional connectivity (FC) analysis of the resting-state functional MRI (rsfMRI) was conducted on the thalamic subregions. Finally, the altered structure and FC were used for correlation analysis with clinical motor scores and for further motor subtypes differentiation. Results The volumes of the left posterior parietal thalamus (PPtha) in TD patients were significantly lower than those of PIGD patients. Compared with PIGD patients, TD patients exhibited higher FC between the thalamic subregions, the left middle temporal gyrus (MTG), the right dorsolateral superior frontal gyrus (SFGdl), the left middle occipital gyrus (MOG), and the right superior temporal gyrus (STG). Compared with HCs, TD patients showed higher FC between the thalamic subregions and the right SFGdl, as well as the left MOG. Compared with HCs, PIGD patients showed lower FC between the thalamic subregions and the left MTG. In addition, the altered FC was closely related to clinical symptoms and performed high-discriminative power in differentiating the motor subtypes. Conclusion Increased FC between the thalamic subregions and the sensory cortices in TD patients may indicate a better compensatory capacity for impairment of sensory information integration than that in PIGD patients. The altered FC between the thalamus and the MTG was a potential biomarker for the distinction of the PD motor subtypes.
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van der Lijn I, de Haan GA, van der Feen FE, Vrijling AC, Stellingwerf C, Fuermaier AB, Langenberg P, van Laar T, Heutink J. Reading Difficulties in Parkinson's Disease: A Stepped Care Model for Neurovisual Rehabilitation. JOURNAL OF PARKINSON'S DISEASE 2023; 13:1225-1237. [PMID: 37781818 PMCID: PMC10657659 DOI: 10.3233/jpd-230124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/08/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND People with Parkinson's disease (PD) frequently experience reading difficulties. Little is known about what functional impairments distinguish people with PD with and without reading difficulties and how these should guide rehabilitation. OBJECTIVE To provide concrete advice for an efficient stepped care model for reading difficulties in PD, based on extensive functional assessments. METHODS This study included 74 people with PD in a neurovisual rehabilitation setting who underwent assessment of visual, visuoperceptual, and cognitive functions. Outcomes were compared between those with frequent (RD+; N = 55) and infrequent reading difficulties (RD-; N = 19). Aids and advice provided during rehabilitation were registered. RESULTS Only a few functions appeared to distinguish RD+ and RD-. Visual functions (i.e., contrast sensitivity, g = 0.76; reading acuity, g = 0.66; visual acuity, g = 0.54) and visuoperceptual functions (i.e., visual attention, g = 0.58, visual motor speed, g = 0.56) showed significant worse scores in RD+ compared to RD-. Aids and advice applied consisted mainly of optimizing refraction, improving lighting, and optimizing text size and spacing. CONCLUSION The test battery showed significant differences between RD+ and RD-on only a few tests on visual and visuoperceptual functions. The applied aids and advice matched well with these impairments. Therefore, we recommend a stepped care model, starting with a short test battery on these functions. If this battery indicates functional impairments, this can be followed by standard aids and advice to improve reading. Only in case of insufficient effect additional testing should take place.
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Affiliation(s)
- Iris van der Lijn
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, The Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, The Netherlands
| | - Gera A. de Haan
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, The Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, The Netherlands
| | - Fleur E. van der Feen
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, The Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, The Netherlands
| | - Anne C.L. Vrijling
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, The Netherlands
| | - Catharina Stellingwerf
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, The Netherlands
| | - Anselm B.M. Fuermaier
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, The Netherlands
| | - Pia Langenberg
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, The Netherlands
| | - Teus van Laar
- Department of Neurology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Joost Heutink
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, The Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, The Netherlands
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Magnante AT, Ord AS, Holland JA, Sautter SW. Neurocognitive functioning of patients with early-stage Parkinson's disease. APPLIED NEUROPSYCHOLOGY. ADULT 2022:1-12. [PMID: 35931087 DOI: 10.1080/23279095.2022.2106865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Parkinson's disease (PD) is a neurological disorder commonly associated with motor deficits. However, cognitive impairment is also common in patients with PD. Cognitive concerns in PD may affect multiple domains of neurocognition and vary across different stages of the disease. Extant research has focused mainly on cognitive deficits in middle to late stages of PD, whereas few studies have examined the unique cognitive profiles of patients with early-stage PD. This study addressed this gap in the published literature and examined neurocognitive functioning and functional capacity of patients with de novo PD, focusing on the unique pattern of cognitive deficits specific to the early stage of the disease. Results indicated that the pattern of cognitive deficits in patients with PD (n = 55; mean age = 72.93) was significantly different from healthy controls (n = 59; mean age = 71.88). Specifically, tasks related to executive functioning, attention, and verbal memory demonstrated the most pronounced deficits in patients with early-stage PD. Clinical implications of these findings are discussed.
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Affiliation(s)
- Anna Theresa Magnante
- College of Health and Behavioral Sciences, Regent University, Virginia Beach, VA, USA
| | - Anna Shirokova Ord
- College of Health and Behavioral Sciences, Regent University, Virginia Beach, VA, USA
| | - Jamie A Holland
- College of Health and Behavioral Sciences, Regent University, Virginia Beach, VA, USA
| | - Scott W Sautter
- College of Health and Behavioral Sciences, Regent University, Virginia Beach, VA, USA
- Hampton Roads Neuropsychology Inc., Virginia Beach, VA, USA
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van der Lijn I, de Haan GA, Huizinga F, van der Feen FE, Rutgers AWF, Stellingwerf C, van Laar T, Heutink J. Self-Reported Visual Complaints in People with Parkinson’s Disease: A Systematic Review. JOURNAL OF PARKINSON'S DISEASE 2022; 12:785-806. [PMID: 35001897 PMCID: PMC9108577 DOI: 10.3233/jpd-202324] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background: Scientific research increasingly focuses on visual symptoms of people with Parkinson’s disease (PD). However, this mostly involves functional measures, whereas self-reported data are equally important for guiding clinical care. Objective: This review provides an overview of the nature and prevalence of self-reported visual complaints by people with PD, compared to healthy controls. Methods: A systematic literature search was performed. Studies from three databases (PubMed, PsycInfo, and Web of Science) were screened for eligibility. Only studies that reported results of visual self-reports in people with idiopathic PD were included. Results: One hundred and thirty-nine eligible articles were analyzed. Visual complaints ranged from function-related complaints (e.g., blurred vision, double vision, increased sensitivity to light or changes in contrast sensitivity) to activity-related complaints (e.g., difficulty reading, reaching, or driving). Visual complaints were more prevalent in people with PD compared to healthy controls. The presence of visual complaints leads to a reduced quality of life (QoL). Increased prevalence and severity of visual complaints in people with PD are related to longer disease duration, higher disease severity, and off-state. Conclusion: A large proportion of people with PD have visual complaints, which negatively affect QoL. Complaints are diverse in nature, and specific and active questioning by clinicians is advised to foster timely recognition, acknowledgement, and management of these complaints.
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Affiliation(s)
- Iris van der Lijn
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| | - Gera A. de Haan
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| | - Famke Huizinga
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Department of General Practice and Elderly Care Medicine, University Medical Center Groningen, Groningen, the Netherlands
| | - Fleur E. van der Feen
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| | | | - Catherina Stellingwerf
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
| | - Teus van Laar
- Department of Neurology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Joost Heutink
- Department of Clinical and Developmental Neuropsychology, University of Groningen, Groningen, the Netherlands
- Royal Dutch Visio, Centre of Expertise for Blind and Partially Sighted People, Huizen, the Netherlands
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How far can I reach? The perception of upper body action capabilities in Parkinson's disease. Atten Percept Psychophys 2021; 83:3259-3274. [PMID: 34231163 PMCID: PMC8260152 DOI: 10.3758/s13414-021-02340-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2021] [Indexed: 11/21/2022]
Abstract
Successful interaction within the environment is contingent upon one’s ability to accurately perceive the extent over which they can successfully perform actions, known as action boundaries. Healthy young adults are accurate in estimating their action boundaries and can flexibly update them to accommodate stable changes in their action capabilities. However, there are conditions in which motor abilities are subject to variability over time such as in Parkinson’s disease (PD). PD impairs the ability to perform actions and can lead to variability in perceptual-motor experience, but the effect on the perceptions of their action boundaries remains unknown. This study investigated the influence of altered perceptual-motor experience during PD, on the perceptions of action boundaries for reaching, grasping, and aperture passing. Thirty participants with mild-to-moderate idiopathic PD and 26 healthy older adults provided estimates of their reaching, grasping, and aperture-passing ability. Participants’ estimates were compared with their actual capabilities. There was no evidence that individuals with PD’s perceptions were less accurate than those of healthy controls. Furthermore, there was some evidence for more conservative estimates than seen in young healthy adults in reaching (both groups) and aperture passing (PD group). This suggests that the ability to judge action capabilities is preserved in mild to moderate PD.
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Borm CDJM, Visser F, Werkmann M, de Graaf D, Putz D, Seppi K, Poewe W, Vlaar AMM, Hoyng C, Bloem BR, Theelen T, de Vries NM. Seeing ophthalmologic problems in Parkinson disease: Results of a visual impairment questionnaire. Neurology 2020; 94:e1539-e1547. [PMID: 32161030 PMCID: PMC7251522 DOI: 10.1212/wnl.0000000000009214] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/15/2019] [Indexed: 11/22/2022] Open
Abstract
Objective To determine the prevalence and clinical effect of ophthalmologic symptoms in patients with Parkinson disease (PD), compared with controls, using a standardized questionnaire. Methods In this observational, cross-sectional, multicenter study, 848 patients with PD and 250 healthy controls completed the Visual Impairment in Parkinson's Disease Questionnaire (VIPD-Q). The VIPD-Q addressed 4 domains according to structures: (1) ocular surface; (2) intraocular; (3) oculomotor; and (4) optic nerve. The questionnaire also assessed the effect of ophthalmologic symptoms on daily activities. Results One or more ophthalmologic symptoms were reported by 82% (95% confidence interval [CI], 80–85) of patients, compared with 48% (95% CI, 42–54) of controls (p < 0.001). Patients with PD experienced more ophthalmologic symptoms across all domains than controls (p < 0.001), as reflected by a higher VIPD-Q total score among patients (median 10 [interquartile range (IQR) 13]) than controls (median 2 [IQR 5]; p < 0.001). Ophthalmologic symptoms interfered with daily activities in 68% (95% CI, 65–71) of patients, compared with 35% (95% CI, 29–41) of controls (p < 0.001). Conclusion Patients with PD have a higher prevalence of ophthalmologic symptoms than controls. Moreover, these frequently interfere with daily activities. A screening questionnaire such as the VIPD-Q may help with identifying ophthalmologic symptoms in PD, thereby enabling more timely treatment.
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Affiliation(s)
- Carlijn D J M Borm
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria.
| | - Femke Visser
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Mario Werkmann
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Debbie de Graaf
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Diana Putz
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Klaus Seppi
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Werner Poewe
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Annemarie M M Vlaar
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Carel Hoyng
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Bastiaan R Bloem
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Thomas Theelen
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
| | - Nienke M de Vries
- From Parkinson Centre Nijmegen (ParC), Department of Neurology, Donders Institute for Brain, Cognition and Behaviour (C.D.J.M.B., D.d.G., B.R.B., N.M.d.V.), and Department of Ophthalmology (C.H., T.T.), Radboud University Medical Centre, Nijmegen; Department of Neurology (F.V., A.M.M.V.), Onze Lieve Vrouwe Gasthuis (OLVG), Amsterdam, the Netherlands; and Departments of Neurology (M.W., K.S., W.P.) and Ophthalmology (D.P.), Medical University Innsbruck, Austria
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Salazar RD, Moon KLM, Neargarder S, Cronin-Golomb A. Spatial judgment in Parkinson's disease: Contributions of attentional and executive dysfunction. Behav Neurosci 2020; 133:350-360. [PMID: 31294590 DOI: 10.1037/bne0000329] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Spatial judgment is impaired in Parkinson's disease (PD), with previous research suggesting that disruptions in attention and executive function are likely contributors. If judgment of center places demands on frontal systems, performance on tests of attention/executive function may correlate with extent of bias in PD, and attentional disturbance may predict inconsistency in spatial judgment. The relation of spatial judgment to attention/executive function may differ for those with left-side versus right-side motor onset (LPD, RPD), reflecting effects of attentional lateralization. We assessed 42 RPD, 37 LPD, and 67 healthy control participants with a Landmark task (LM) in which a cursor moved horizontally from the right (right-LM) or left (left-LM). The task was to judge the center of the line. Participants also performed neuropsychological tests of attention and executive function. LM group differences were found on left-LM only, with both PD subgroups biased leftward of the control group (RPD p < .05; LPD p < .01; no RPD-LPD difference). For left-LM trials, extent of bias significantly correlated with performance on the cognitive tasks for PD but not for the control group. PD showed greater variability in perceived center than the control group; this variability correlated with performance on the cognitive tasks. The correlations between performance on the test of spatial judgment and the tests of attention/executive function suggest that frontal-based attentional dysfunction affects dynamic spatial judgment, both in extent of spatial bias and in consistency of response as indexed by intertrial variability. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Affiliation(s)
- Robert D Salazar
- Department of Psychological and Brain Sciences, Boston University
| | - Kathryn L M Moon
- Department of Psychological and Brain Sciences, Boston University
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Zečević I, Vaselić N. Visuomotor characteristics and differences between the tremor-dominant and akinetic-rigid type of Parkinson’s disease. APPLIED NEUROPSYCHOLOGY-ADULT 2019; 28:745-751. [DOI: 10.1080/23279095.2019.1699097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ivan Zečević
- Faculty of Philosophy, Psychology, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
| | - Nada Vaselić
- Faculty of Philosophy, Psychology, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
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Borm CDJM, Werkmann M, Visser F, Peball M, Putz D, Seppi K, Poewe W, Notting IC, Vlaar A, Theelen T, Hoyng C, Bloem BR, de Vries NM. Towards seeing the visual impairments in Parkinson's disease: protocol for a multicentre observational, cross-sectional study. BMC Neurol 2019; 19:141. [PMID: 31238904 PMCID: PMC6591947 DOI: 10.1186/s12883-019-1365-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/13/2019] [Indexed: 01/21/2023] Open
Abstract
Background Visual disorders are common in Parkinson’s disease (PD) but their exact frequency and severity are unknown. Good visual functioning is crucial for patients with PD, because of their need to compensate for loss of automated motor control and their postural instability, forcing patients to guide their movements visually. Here, we describe the study design of a cross-sectional, multi-centre study aiming to: (1) validate the Visual Impairment screening questionnaire (VIPD-Q, which aims to identify PD patients who should be referred to an ophthalmologist for further assessment); (2) study the prevalence of visual disorders in PD; (3) study the severity and clinical impact of different types of visual disorders in PD; and (4) explore treatment options for ophthalmologic disorders in PD, as a basis for future guideline development. Methods This study consists of two phases. In phase one, 750 PD patients and 250 healthy controls will be recruited to complete the VIPD-Q. In phase two, a subgroup of responders (n = 100) (with the highest and lowest scores on the VIPD-Q) will be invited for an extensive neurological and ophthalmological assessment. The in-depth ophthalmologic examination will serve as the “gold standard” for validating the VIPD-Q. Moreover, these assessments will be used to study associations between visual disorders and clinical presentation, in order to gain more insight in their clinical impact. Discussion Our study will heighten the awareness of visual problems in PD and offers a robust starting point to systematically approach this subject. In current daily practice, the association between visual problems and PD is far from obvious to both patients and clinicians. Consequently, patients may not adequately report visual problems themselves, while clinicians miss potentially treatable visual disorders. Routinely asking patients to complete a simple screening questionnaire could be an easy solution leading to timely identification of visual problems, tailored treatment, restored mobility, greater independence and improved quality of life. Trial registration Dutch Trial Registration, NL7421, Registered on 4 December 2018 – Retrospectively registered. Electronic supplementary material The online version of this article (10.1186/s12883-019-1365-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Carlijn D J M Borm
- Department of Neurology, Parkinson Center Nijmegen (ParC) Nijmegen, Donders institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, PO Box 9101, 6500, HB, Nijmegen, The Netherlands.
| | - Mario Werkmann
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Femke Visser
- Department of Neurology, Onze Lieve Vrouw Gasthuis (OLVG), Amsterdam, The Netherlands
| | - Marina Peball
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Diana Putz
- Department of ophthalmology, Medical University Innsbruck, Innsbruck, Austria
| | - Klaus Seppi
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Werner Poewe
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Irene C Notting
- Department of Ophthalmology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Annemarie Vlaar
- Department of Neurology, Onze Lieve Vrouw Gasthuis (OLVG), Amsterdam, The Netherlands
| | - Thomas Theelen
- Radboud University Medical Centre, Department of Ophthalmology, Nijmegen, The Netherlands
| | - Carel Hoyng
- Radboud University Medical Centre, Department of Ophthalmology, Nijmegen, The Netherlands
| | - Bastiaan R Bloem
- Department of Neurology, Parkinson Center Nijmegen (ParC) Nijmegen, Donders institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, PO Box 9101, 6500, HB, Nijmegen, The Netherlands
| | - Nienke M de Vries
- Department of Neurology, Parkinson Center Nijmegen (ParC) Nijmegen, Donders institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, PO Box 9101, 6500, HB, Nijmegen, The Netherlands
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The Dual-Tasking Overload on Functional Mobility Is Related to Specific Cognitive Domains in Different Subtypes of Parkinson's Disease. TOPICS IN GERIATRIC REHABILITATION 2019. [DOI: 10.1097/tgr.0000000000000220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Guo L, Normando EM, Shah PA, De Groef L, Cordeiro MF. Oculo-visual abnormalities in Parkinson's disease: Possible value as biomarkers. Mov Disord 2018; 33:1390-1406. [DOI: 10.1002/mds.27454] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 05/16/2018] [Accepted: 05/18/2018] [Indexed: 12/16/2022] Open
Affiliation(s)
- Li Guo
- Glaucoma and Retinal Degenerative Disease Research Group, Institute of Ophthalmology; University College London; London UK
| | - Eduardo M. Normando
- Glaucoma and Retinal Degenerative Disease Research Group, Institute of Ophthalmology; University College London; London UK
- Western Eye Hospital, Imperial College Healthcare National Health Service Trust; London UK
- Imperial College Ophthalmology Research Group, Department of Surgery and Cancer, Imperial College London; London UK
| | - Parth Arvind Shah
- Glaucoma and Retinal Degenerative Disease Research Group, Institute of Ophthalmology; University College London; London UK
| | - Lies De Groef
- Glaucoma and Retinal Degenerative Disease Research Group, Institute of Ophthalmology; University College London; London UK
- Neural Circuit Development and Regeneration Research Group, Department of Biology; University of Leuven; Leuven Belgium
| | - M. Francesca Cordeiro
- Glaucoma and Retinal Degenerative Disease Research Group, Institute of Ophthalmology; University College London; London UK
- Western Eye Hospital, Imperial College Healthcare National Health Service Trust; London UK
- Imperial College Ophthalmology Research Group, Department of Surgery and Cancer, Imperial College London; London UK
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12
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Szymkowicz SM, Dotson VM, Jones JD, Okun MS, Bowers D. Symptom Dimensions of Depression and Apathy and Their Relationship With Cognition in Parkinson's Disease. J Int Neuropsychol Soc 2018; 24:269-282. [PMID: 29032789 PMCID: PMC5820218 DOI: 10.1017/s1355617717001011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Both depression and apathy, alone and in combination, have been shown to negatively affect cognition in patients with Parkinson's disease (PD). However, the influence of specific symptom dimensions of depression and apathy on cognition is not well understood. The current study investigated the relationship between symptom dimensions of depression and apathy, based on factors identified in Kirsch-Darrow et al. (2011), and memory and executive function in PD. METHODS A sample of 138 non-demented individuals with PD (mean age=64.51±7.43 years) underwent neuropsychological testing and completed the Beck Depression Inventory, 2nd Edition, and Apathy Scale. Separate hierarchical regression models examined the relationship between symptom dimensions of depression and apathy ("pure" depressive symptoms, "pure" apathy, loss of interest/pleasure [anhedonia], and somatic symptoms) and three cognitive domain composites: immediate verbal memory, delayed verbal memory, and executive function. RESULTS After adjusting for general cognitive status and the influence of the other symptom dimensions, "pure" depressive symptoms were negatively associated with the delayed verbal memory composite (p<.034) and somatic symptoms were positively associated with the executive function composite (p<.026). No symptom dimensions were significantly related to the immediate verbal memory composite. CONCLUSIONS Findings suggest that specific mood symptoms are associated with delayed verbal memory and executive function performance in non-demented patients with PD. Further research is needed to better understand possible mechanisms through which specific symptom dimensions of depression and apathy are associated with cognition in PD. (JINS, 2018, 24, 269-282).
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Affiliation(s)
- Sarah M. Szymkowicz
- Department of Clinical & Health Psychology, College of Public Health & Health Professions, University of Florida, Gainesville, FL, USA
| | - Vonetta M. Dotson
- Department of Clinical & Health Psychology, College of Public Health & Health Professions, University of Florida, Gainesville, FL, USA
- Department of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Jacob D. Jones
- Department of Psychiatry & Biobehavioral Sciences, David Geffen School of Medicine, University of California - Los Angeles, Los Angeles, CA, USA
| | - Michael S. Okun
- Department of Neurology, College of Medicine, University of Florida, Gainesville, FL, USA
- Center for Movement Disorders & Neurorestoration, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Dawn Bowers
- Department of Clinical & Health Psychology, College of Public Health & Health Professions, University of Florida, Gainesville, FL, USA
- Department of Neurology, College of Medicine, University of Florida, Gainesville, FL, USA
- Center for Movement Disorders & Neurorestoration, College of Medicine, University of Florida, Gainesville, FL, USA
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13
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Mu J, Chaudhuri KR, Bielza C, de Pedro-Cuesta J, Larrañaga P, Martinez-Martin P. Parkinson's Disease Subtypes Identified from Cluster Analysis of Motor and Non-motor Symptoms. Front Aging Neurosci 2017; 9:301. [PMID: 28979203 PMCID: PMC5611404 DOI: 10.3389/fnagi.2017.00301] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 09/01/2017] [Indexed: 12/22/2022] Open
Abstract
Parkinson's disease is now considered a complex, multi-peptide, central, and peripheral nervous system disorder with considerable clinical heterogeneity. Non-motor symptoms play a key role in the trajectory of Parkinson's disease, from prodromal premotor to end stages. To understand the clinical heterogeneity of Parkinson's disease, this study used cluster analysis to search for subtypes from a large, multi-center, international, and well-characterized cohort of Parkinson's disease patients across all motor stages, using a combination of cardinal motor features (bradykinesia, rigidity, tremor, axial signs) and, for the first time, specific validated rater-based non-motor symptom scales. Two independent international cohort studies were used: (a) the validation study of the Non-Motor Symptoms Scale (n = 411) and (b) baseline data from the global Non-Motor International Longitudinal Study (n = 540). k-means cluster analyses were performed on the non-motor and motor domains (domains clustering) and the 30 individual non-motor symptoms alone (symptoms clustering), and hierarchical agglomerative clustering was performed to group symptoms together. Four clusters are identified from the domains clustering supporting previous studies: mild, non-motor dominant, motor-dominant, and severe. In addition, six new smaller clusters are identified from the symptoms clustering, each characterized by clinically-relevant non-motor symptoms. The clusters identified in this study present statistical confirmation of the increasingly important role of non-motor symptoms (NMS) in Parkinson's disease heterogeneity and take steps toward subtype-specific treatment packages.
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Affiliation(s)
- Jesse Mu
- Department of Computer Science, Boston CollegeChestnut Hill, MA, United States
| | - Kallol R Chaudhuri
- Department of Basic and Clinical Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, King's College LondonLondon, United Kingdom
| | - Concha Bielza
- Computational Intelligence Group, Department of Artificial Intelligence, Universidad Politécnica de MadridMadrid, Spain
| | | | - Pedro Larrañaga
- Computational Intelligence Group, Department of Artificial Intelligence, Universidad Politécnica de MadridMadrid, Spain
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14
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Radder DL, Sturkenboom IH, van Nimwegen M, Keus SH, Bloem BR, de Vries NM. Physical therapy and occupational therapy in Parkinson's disease. Int J Neurosci 2017; 127:930-943. [DOI: 10.1080/00207454.2016.1275617] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Danique L.M. Radder
- Department of Neurology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Ingrid H. Sturkenboom
- Department of Rehabilitation-Occupational Therapy, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Marlies van Nimwegen
- Department of Neurology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Samyra H. Keus
- Department of Neurology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Bastiaan R. Bloem
- Department of Neurology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Nienke M. de Vries
- Department of Neurology, Radboud University Medical Center, Nijmegen, the Netherlands
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15
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Weil RS, Schrag AE, Warren JD, Crutch SJ, Lees AJ, Morris HR. Visual dysfunction in Parkinson's disease. Brain 2016; 139:2827-2843. [PMID: 27412389 PMCID: PMC5091042 DOI: 10.1093/brain/aww175] [Citation(s) in RCA: 240] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 05/23/2016] [Accepted: 06/05/2016] [Indexed: 01/09/2023] Open
Abstract
Patients with Parkinson's disease have a number of specific visual disturbances. These include changes in colour vision and contrast sensitivity and difficulties with complex visual tasks such as mental rotation and emotion recognition. We review changes in visual function at each stage of visual processing from retinal deficits, including contrast sensitivity and colour vision deficits to higher cortical processing impairments such as object and motion processing and neglect. We consider changes in visual function in patients with common Parkinson's disease-associated genetic mutations including GBA and LRRK2 . We discuss the association between visual deficits and clinical features of Parkinson's disease such as rapid eye movement sleep behavioural disorder and the postural instability and gait disorder phenotype. We review the link between abnormal visual function and visual hallucinations, considering current models for mechanisms of visual hallucinations. Finally, we discuss the role of visuo-perceptual testing as a biomarker of disease and predictor of dementia in Parkinson's disease.
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Affiliation(s)
- Rimona S. Weil
- 1 Institute of Neurology, University College London, London, UK
- 2 National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
- 3 Department of Clinical Neurosciences, Royal Free Hospital NHS Trust, London, UK
| | - Anette E. Schrag
- 1 Institute of Neurology, University College London, London, UK
- 2 National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - Jason D. Warren
- 2 National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
- 4 Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Sebastian J. Crutch
- 4 Dementia Research Centre, UCL Institute of Neurology, University College London, London, UK
| | - Andrew J. Lees
- 1 Institute of Neurology, University College London, London, UK
- 2 National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - Huw R. Morris
- 1 Institute of Neurology, University College London, London, UK
- 2 National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
- 3 Department of Clinical Neurosciences, Royal Free Hospital NHS Trust, London, UK
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16
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Jaywant A, Shiffrar M, Roy S, Cronin-Golomb A. Impaired perception of biological motion in Parkinson's disease. Neuropsychology 2016; 30:720-30. [PMID: 26949927 DOI: 10.1037/neu0000276] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE We examined biological motion perception in Parkinson's disease (PD). Biological motion perception is related to one's own motor function and depends on the integrity of brain areas affected in PD, including posterior superior temporal sulcus. If deficits in biological motion perception exist, they may be specific to perceiving natural/fast walking patterns that individuals with PD can no longer perform, and may correlate with disease-related motor dysfunction. METHOD Twenty-six nondemented individuals with PD and 24 control participants viewed videos of point-light walkers and scrambled versions that served as foils, and indicated whether each video depicted a human walking. Point-light walkers varied by gait type (natural, parkinsonian) and speed (0.5, 1.0, 1.5 m/s). Participants also completed control tasks (object motion, coherent motion perception), a contrast sensitivity assessment, and a walking assessment. RESULTS The PD group demonstrated significantly less sensitivity to biological motion than the control group (p < .001, Cohen's d = 1.22), regardless of stimulus gait type or speed, with a less substantial deficit in object motion perception (p = .02, Cohen's d = .68). There was no group difference in coherent motion perception. Although individuals with PD had slower walking speed and shorter stride length than control participants, gait parameters did not correlate with biological motion perception. Contrast sensitivity and coherent motion perception also did not correlate with biological motion perception. CONCLUSION PD leads to a deficit in perceiving biological motion, which is independent of gait dysfunction and low-level vision changes, and may therefore arise from difficulty perceptually integrating form and motion cues in posterior superior temporal sulcus. (PsycINFO Database Record
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Affiliation(s)
- Abhishek Jaywant
- Department of Psychological and Brain Sciences, Boston University
| | - Maggie Shiffrar
- Office of Research & Graduate Studies, California State University Northridge
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17
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Norton DJ, Jaywant A, Gallart-Palau X, Cronin-Golomb A. Normal discrimination of spatial frequency and contrast across visual hemifields in left-onset Parkinson's disease: evidence against perceptual hemifield biases. Vision Res 2014; 107:94-100. [PMID: 25498374 DOI: 10.1016/j.visres.2014.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 11/26/2014] [Accepted: 12/02/2014] [Indexed: 10/24/2022]
Abstract
Individuals with Parkinson's disease (PD) with symptom onset on the left side of the body (LPD) show a mild type of left-sided visuospatial neglect, whereas those with right-onset (RPD) generally do not. The functional mechanisms underlying these observations are unknown. Two hypotheses are that the representation of left-space in LPD is either compressed or reduced in salience. We tested these hypotheses psychophysically. Participants were 31 non-demented adults with PD (15 LPD, 16 RPD) and 17 normal control adults (NC). The spatial compression hypothesis was tested by showing two sinusoidal gratings, side by side. One grating's spatial frequency (SF) was varied across trials, following a staircase procedure, whereas the comparison grating was held at a constant SF. While fixating on a central target, participants estimated the point at which they perceived the two gratings to be equal in SF. The reduced salience hypothesis was tested in a similar way, but by manipulating the contrast of the test grating rather than its SF. There were no significant differences between groups in the degree of bias across hemifields for SF discrimination or for contrast discrimination. Results did not support either the spatial compression hypothesis or the reduced salience hypothesis. Instead, they suggest that at this perceptual level, LPD do not have a systematically biased way of representing space in the left hemifield that differs from healthy individuals, nor do they perceive stimuli on the left as less salient than stimuli on the right. Neglect-like syndrome in LPD instead presumably arises from dysfunction of higher-order attention.
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Affiliation(s)
- Daniel J Norton
- Department of Psychological and Brain Sciences, Boston University, USA
| | - Abhishek Jaywant
- Department of Psychological and Brain Sciences, Boston University, USA
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18
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Murray LL, Rutledge S. Reading comprehension in Parkinson's disease. AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2014; 23:S246-S258. [PMID: 24686432 DOI: 10.1044/2014_ajslp-13-0087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
PURPOSE Although individuals with Parkinson's disease (PD) self-report reading problems and experience difficulties in cognitive-linguistic functions that support discourse-level reading, prior research has primarily focused on sentence-level processing and auditory comprehension. Accordingly, the authors investigated the presence and nature of reading comprehension in PD, hypothesizing that (a) individuals with PD would display impaired accuracy and/or speed on reading comprehension tests and (b) reading performances would be correlated with cognitive test results. METHOD Eleven adults with PD and 9 age- and education-matched control participants completed tests that evaluated reading comprehension; general language and cognitive abilities; and aspects of attention, memory, and executive functioning. RESULT The PD group obtained significantly lower scores on several, but not all, reading comprehension, language, and cognitive measures. Memory, language, and disease severity were significantly correlated with reading comprehension for the PD group. CONCLUSION Individuals in the early stages of PD without dementia or broad cognitive deficits can display reading comprehension difficulties, particularly for high- versus basic-level reading tasks. These reading difficulties are most closely related to memory, high-level language, and PD symptom severity status. The findings warrant additional research to delineate further the types and nature of reading comprehension impairments experienced by individuals with PD.
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19
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Jaywant A, Musto G, Neargarder S, Stavitsky Gilbert K, Cronin-Golomb A. The effect of Parkinson's disease subgroups on verbal and nonverbal fluency. J Clin Exp Neuropsychol 2014; 36:278-89. [PMID: 24533593 DOI: 10.1080/13803395.2014.889089] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Parkinson's disease (PD) leads to deficits in executive function, including verbal and nonverbal fluency, as a result of compromised frontostriatal circuits. It is unknown whether deficits in verbal and nonverbal fluency in PD are driven by certain subgroups of patients, or how strategy use may facilitate performance. PARTICIPANTS Sixty-five nondemented individuals with PD, including 36 with right-body onset (RPD; 20 with tremor as their initial symptom, 16 nontremor) and 29 with left-body onset (LPD; 14 with tremor as their initial symptom, 15 nontremor), and 52 normal control participants (NC) took part in the study. MEASUREMENTS Verbal fluency was assessed using the FAS and Animals tests. Nonverbal fluency was assessed using the Ruff Figural Fluency Test. RESULTS Both RPD and LPD were impaired in generating words and in using clustering and switching strategies on phonemic verbal fluency, whereas different patterns of impairment were found on nonverbal fluency depending on the interaction of side of onset and initial motor symptom (tremor vs. nontremor). Strategy use correlated with number of correct responses on verbal fluency in LPD, RPD, and NC. By contrast, on nonverbal fluency, strategy use correlated with correct responses for RPD and LPD, but not for NC. CONCLUSION Our findings demonstrate the importance of considering subgroups in PD and analyzing subcomponents of verbal and nonverbal fluency (correct responses, errors, and strategies), which may depend differently on the integrity of dorsolateral prefrontal cortex, inferior frontal cortex, and anterior cingulate cortex.
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Affiliation(s)
- Abhishek Jaywant
- a Department of Psychological and Brain Sciences , Boston University , Boston , MA , USA
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20
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Moustafa AA, Poletti M. Neural and behavioral substrates of subtypes of Parkinson's disease. Front Syst Neurosci 2013; 7:117. [PMID: 24399940 PMCID: PMC3872046 DOI: 10.3389/fnsys.2013.00117] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 12/05/2013] [Indexed: 01/18/2023] Open
Abstract
Parkinson’s disease (PD) is a neurological disorder, associated with rigidity, bradykinesia, and resting tremor, among other motor symptoms. In addition, patients with PD also show cognitive and psychiatric dysfunction, including dementia, mild cognitive impairment (MCI), depression, hallucinations, among others. Interestingly, the occurrence of these symptoms—motor, cognitive, and psychiatric—vary among individuals, such that a subgroup of PD patients might show some of the symptoms, but another subgroup does not. This has prompted neurologists and scientists to subtype PD patients depending on the severity of symptoms they show. Neural studies have also mapped different motor, cognitive, and psychiatric symptoms in PD to different brain networks. In this review, we discuss the neural and behavioral substrates of most common subtypes of PD patients, that are related to the occurrence of: (a) resting tremor (vs. nontremor-dominant); (b) MCI; (c) dementia; (d) impulse control disorders (ICD); (e) depression; and/or (f) hallucinations. We end by discussing the relationship among subtypes of PD subgroups, and the relationship among motor, cognitive, psychiatric factors in PD.
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Affiliation(s)
- Ahmed A Moustafa
- Department of Veterans Affairs, New Jersey Health Care System East Orange, NJ, USA ; School of Social Sciences and Psychology and Marcs Institute for Brain and Behaviour, University of Western Sydney Sydney, NSW, Australia
| | - Michele Poletti
- Department of Mental Health and Pathological Addiction, AUSL of Reggio Emilia Reggio Emilia, Italy
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21
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Miller IN, Neargarder S, Risi MM, Cronin-Golomb A. Frontal and posterior subtypes of neuropsychological deficit in Parkinson's disease. Behav Neurosci 2013; 127:175-183. [PMID: 23398433 DOI: 10.1037/a0031357] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Mild cognitive impairment in Parkinson's disease (PD) is heterogeneous in regard to affected domains. Although patterns of cognitive performance that may predict later dementia are as yet undetermined, posterior- versus frontal-type assessments show promise for differential predictive value. The present study included 70 individuals: 42 with idiopathic PD without dementia and 28 age- and education-matched healthy control adults (HC). Participants completed assessments of cognition with emphasis on tests that are sensitive to frontal and posterior deficits. PD patients were classified into cognitive subgroups and the subgroups were compared on demographic and disease variables. Individual performance across neuropsychological tests was evaluated for the PD group. Patients with PD performed more poorly than HC on several measures of cognition, and they were classified into frontal (12), posterior (3), both (10) and neither subgroups (17), the latter two in reference to frontal- and posterior-type deficits. The neither subgroup was distinguished by less motor impairment than the both subgroup, but the four subgroups did not otherwise differ on demographic or disease variables. Across patients, the tests most sensitive to cognitive impairment included measures of attention and executive functioning (frontal-type tests). Examination of individual test performance for PD revealed substantial heterogeneity across tests with respect to number and severity of deficits. The current study provides insight into which commonly used neuropsychological tests are most sensitive to cognitive deficits (strictly defined) in a nondemented, well characterized PD sample, and into the relation of cognitive subgroups to demographic and disease-specific variables.
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Affiliation(s)
| | | | - Megan M Risi
- Department of Psychology, Bridgewater State University
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Toner CK, Reese BE, Neargarder S, Riedel TM, Gilmore GC, Cronin-Golomb A. Vision-fair neuropsychological assessment in normal aging, Parkinson's disease and Alzheimer's disease. Psychol Aging 2012; 27:785-90. [PMID: 22201330 PMCID: PMC3360123 DOI: 10.1037/a0026368] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We examined performance of healthy older and younger adults and individuals with Alzheimer's disease (AD) and Parkinson's disease (PD) on digit cancellation, a task putatively sensitive to cognitive impairment, but possibly affected by visual impairment, particularly in contrast sensitivity. Critical contrast thresholds were established to create custom stimulus arrays that were proximally matched across individuals. Age- and PD-related differences in search were fully accounted for by the sensory deficit. Increased contrast benefited AD patients, but could not override cognitive impairment. We conclude that visually fair neuropsychological testing can effectively compensate for normal age- and PD-related visual changes that affect cognitive performance.
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Affiliation(s)
| | | | - Sandy Neargarder
- Department of Psychology, Boston University
- Department of Psychology, Bridgewater State University
| | - Tatiana M. Riedel
- Mandel School of Applied Social Sciences, Case Western Reserve University
| | - Grover C. Gilmore
- Mandel School of Applied Social Sciences, Case Western Reserve University
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23
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Web-based assessment of visual and visuospatial symptoms in Parkinson's disease. PARKINSONS DISEASE 2012; 2012:564812. [PMID: 22530162 PMCID: PMC3316969 DOI: 10.1155/2012/564812] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Accepted: 11/17/2011] [Indexed: 11/17/2022]
Abstract
Visual and visuospatial dysfunction is prevalent in Parkinson's disease (PD). To promote assessment of these often overlooked symptoms, we adapted the PD Vision Questionnaire for Internet administration. The questionnaire evaluates visual and visuospatial symptoms, impairments in activities of daily living (ADLs), and motor symptoms. PD participants of mild to moderate motor severity (n = 24) and healthy control participants (HC, n = 23) completed the questionnaire in paper and web-based formats. Reliability was assessed by comparing responses across formats. Construct validity was evaluated by reference to performance on measures of vision, visuospatial cognition, ADLs, and motor symptoms. The web-based format showed excellent reliability with respect to the paper format for both groups (all P′s < 0.001; HC completing the visual and visuospatial section only). Demonstrating the construct validity of the web-based questionnaire, self-rated ADL and visual and visuospatial functioning were significantly associated with performance on objective measures of these abilities (all P′s < 0.01). The findings indicate that web-based administration may be a reliable and valid method of assessing visual and visuospatial and ADL functioning in PD.
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Laudate TM, Neargarder S, Dunne TE, Sullivan KD, Joshi P, Gilmore GC, Riedel TM, Cronin-Golomb A. Bingo! Externally supported performance intervention for deficient visual search in normal aging, Parkinson's disease, and Alzheimer's disease. NEUROPSYCHOLOGY, DEVELOPMENT, AND COGNITION. SECTION B, AGING, NEUROPSYCHOLOGY AND COGNITION 2011; 19:102-21. [PMID: 22066941 PMCID: PMC3275685 DOI: 10.1080/13825585.2011.621930] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
External support may improve task performance regardless of an individual's ability to compensate for cognitive deficits through internally generated mechanisms. We investigated if performance of a complex, familiar visual search task (the game of bingo) could be enhanced in groups with suboptimal vision by providing external support through manipulation of task stimuli. Participants were 19 younger adults, 14 individuals with probable Alzheimer's disease (AD), 13 AD-matched healthy adults, 17 non-demented individuals with Parkinson's disease (PD), and 20 PD-matched healthy adults. We varied stimulus contrast, size, and visual complexity during game play. The externally supported performance interventions of increased stimulus size and decreased complexity resulted in improvements in performance by all groups. AD also obtained benefit from increasing contrast, presumably by compensating for their contrast sensitivity deficit. The general finding of improved performance across healthy and afflicted groups suggests the value of visual support as an easy-to-apply intervention to enhance cognitive performance.
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Affiliation(s)
| | - Sandy Neargarder
- Department of Psychology, Boston University, Boston, MA, 02215 USA
- Department of Psychology, Bridgewater State University, Bridgewater, MA, 02325 USA
| | - Tracy E. Dunne
- Department of Psychology, Boston University, Boston, MA, 02215 USA
| | | | - Pallavi Joshi
- Department of Psychology, Boston University, Boston, MA, 02215 USA
| | - Grover C. Gilmore
- Department of Psychology, Case Western Reserve University, Cleveland, OH, 44106 USA
| | - Tatiana M. Riedel
- Department of Psychology, Case Western Reserve University, Cleveland, OH, 44106 USA
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