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Yavuz B, Rusen E, Duman T, Bas B. Developments of possible clinical diagnostic methods for parkinson's disease: event-related potentials. Neurocase 2023; 29:67-74. [PMID: 38678307 DOI: 10.1080/13554794.2024.2345404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 04/15/2024] [Indexed: 04/29/2024]
Abstract
In this study, Event-Related Potential (ERP) analyzes were performed to detect cognitive impairments in PD with Deep Brain Stimulation (DBS). A total of 85 volunteers underwent ERP analysis and neuropsychological testing (NPT) to determine cognitive level. In ERP analyses, prolonged latencies were observed in PD groups. However, patients implanted with DBS showed a decrease in latencies, a decrease in symptoms and statistical improvements in both cognitive and attention skills. Considering all these data, ERP results are promising as a noninvasive method that can be used in both disease status and diagnosis of PD.
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Affiliation(s)
- Burcak Yavuz
- Vocational School of Health Services/Istanbul, Altinbas University, Turkey
| | - Emir Rusen
- Faculty of Medicine, Department of Neurology/Istanbul, Altinbas University, Turkey
| | - Tugce Duman
- Department of Neuroscience/Istanbul, Uskudar University, Turkey
| | - Berra Bas
- Department of Psychology/Istanbul, Bahcelievler MedicalPark Hospital Turkey
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2
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Großmann W. Listening with an Ageing Brain - a Cognitive Challenge. Laryngorhinootologie 2023; 102:S12-S34. [PMID: 37130528 PMCID: PMC10184676 DOI: 10.1055/a-1973-3038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Hearing impairment has been recently identified as a major modifiable risk factor for cognitive decline in later life and has been becoming of increasing scientific interest. Sensory and cognitive decline are connected by complex bottom-up and top-down processes, a sharp distinction between sensation, perception, and cognition is impossible. This review provides a comprehensive overview on the effects of healthy and pathological aging on auditory as well as cognitive functioning on speech perception and comprehension, as well as specific auditory deficits in the 2 most common neurodegenerative diseases in old age: Alzheimer disease and Parkinson syndrome. Hypotheses linking hearing loss to cognitive decline are discussed, and current knowledge on the effect of hearing rehabilitation on cognitive functioning is presented. This article provides an overview of the complex relationship between hearing and cognition in old age.
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Affiliation(s)
- Wilma Großmann
- Universitätsmedizin Rostock, Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde,Kopf- und Halschirurgie "Otto Körner"
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3
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Xu H, Gu L, Zhang S, Wu Y, Wei X, Wang C, Xu Y, Guo Y. N200 and P300 component changes in Parkinson’s disease: a meta-analysis. Neurol Sci 2022; 43:6719-6730. [DOI: 10.1007/s10072-022-06348-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 08/11/2022] [Indexed: 11/28/2022]
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Electrophysiological Evidence of Auditory and Cognitive Processing Deficits in Parkinson Disease. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6610908. [PMID: 34239927 PMCID: PMC8233099 DOI: 10.1155/2021/6610908] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 05/03/2021] [Accepted: 05/27/2021] [Indexed: 11/18/2022]
Abstract
Background Parkinson's disease (PD) patients are at increased risk for central auditory processing (CAP) deficits and cognitive dysfunction. However, behavioral assessments of CAP and cognitive processing used in a previous study by our research team found few significant differences in performance between early-stage PD patients and age-matched control subjects. The objective of this study is to use auditory event-related potentials (AERPs) to compare CAP and cognitive functions in a population of PD patients with a group of age-matched control subjects. Methods AERPs in response to tonal and speech stimuli were recorded from 35 adults who had a medical diagnosis of PD (23 males and 12 females; mean age = 66.9 ± s.d.11.2 years), and 35 age-matched control subjects who did not have PD or any other neurological disorders (31 males and 4 females; mean age = 65.4 ± s.d.12.3 years). Auditory stimuli included pure tones (500 and 1000 Hz) to elicit the P300 response and a dichotic digits paradigm to elicit the N200 processing negativity. Results Compared to control subjects, PD patients exhibited significantly longer latencies of P300 and N200 components and smaller amplitude N200 components. Latency and amplitude of the N200 component were significantly correlated with participants' age. N200 amplitude was correlated with results from the Rey Auditory Verbal Learning Test (RAVLT) of cognitive ability. Latency of the P300 and amplitude of the N200 components were significantly correlated with results from the Spatial Release From Masking (SRM) behavioral CAP assessment. Conclusions AERP assessments used in this study appear to be sensitive indicators of CAP and cognitive deficits exhibited by early-stage PD patients. While few significant differences in performance on behavioral CAP and cognitive tests were previously observed between this population of PD patients and age-matched control subjects, N200 and P300 components recorded in the present study revealed impaired neural processing by the PD group.
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Wang Q, Meng L, Pang J, Zhu X, Ming D. Characterization of EEG Data Revealing Relationships With Cognitive and Motor Symptoms in Parkinson's Disease: A Systematic Review. Front Aging Neurosci 2020; 12:587396. [PMID: 33240076 PMCID: PMC7683572 DOI: 10.3389/fnagi.2020.587396] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/06/2020] [Indexed: 01/08/2023] Open
Abstract
Recent research regards the electroencephalogram (EEG) as a promising method to study real-time brain dynamic changes in patients with Parkinson's disease (PD), but a deeper understanding is needed to discern coincident pathophysiology, patterns of changes, and diagnosis. This review summarized recent research on EEG characterization related to the cognitive and motor functions in PD patients and discussed its potential to be used as diagnostic biomarkers. Thirty papers out of 220 published from 2010 to 2020 were reviewed. Movement abnormalities and cognitive decline are related to changes in EEG spectrum and event-related potentials (ERPs) during typical oddball paradigms and/or combined motor tasks. Abnormalities in β and δ frequency bands are, respectively the main manifestation of dyskinesia and cognitive decline in PD. The review showed that PD patients have noteworthy changes in specific EEG characterizations, however, the underlying mechanism of the interrelation between gait and cognitive is still unclear. Understanding the specific nature of the relationship is essential for development of novel invasive clinical diagnostic and therapeutic methods.
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Affiliation(s)
- Qing Wang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Lin Meng
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Jun Pang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Xiaodong Zhu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
| | - Dong Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
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6
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Jafari Z, Kolb BE, Mohajerani MH. Auditory Dysfunction in Parkinson's Disease. Mov Disord 2020; 35:537-550. [PMID: 32052894 DOI: 10.1002/mds.28000] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/21/2020] [Accepted: 01/27/2020] [Indexed: 12/11/2022] Open
Abstract
PD is a progressive and complex neurological disorder with heterogeneous symptomatology. PD is characterized by classical motor features of parkinsonism and nonmotor symptoms and involves extensive regions of the nervous system, various neurotransmitters, and protein aggregates. Extensive evidence supports auditory dysfunction as an additional nonmotor feature of PD. Studies indicate a broad range of auditory impairments in PD, from the peripheral hearing system to the auditory brainstem and cortical areas. For instance, research demonstrates a higher occurrence of hearing loss in early-onset PD and evidence of abnormal auditory evoked potentials, event-related potentials, and habituation to novel stimuli. Electrophysiological data, such as auditory P3a, also is suggested as a sensitive measure of illness duration and severity. Improvement in auditory responses following dopaminergic therapies also indicates the presence of similar neurotransmitters (i.e., glutamate and dopamine) in the auditory system and basal ganglia. Nonetheless, hearing impairments in PD have received little attention in clinical practice so far. This review summarizes evidence of peripheral and central auditory impairments in PD and provides conclusions and directions for future empirical and clinical research. © 2020 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Zahra Jafari
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada.,Department of Basic Sciences in Rehabilitation, School of Rehabilitation Sciences, Iran University of Medical Science (IUMS), Tehran, Iran
| | - Bryan E Kolb
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada
| | - Majid H Mohajerani
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada
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Lin YQ, Cui SS, Du JJ, Li G, He YX, Zhang PC, Fu Y, Huang P, Gao C, Li BY, Chen SD. N1 and P1 Components Associate With Visuospatial-Executive and Language Functions in Normosmic Parkinson's Disease: An Event-Related Potential Study. Front Aging Neurosci 2019; 11:18. [PMID: 30804778 PMCID: PMC6370661 DOI: 10.3389/fnagi.2019.00018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 01/21/2019] [Indexed: 01/17/2023] Open
Abstract
Background: Hyposmia is one of the most important clinical markers of Parkinson's disease (PD) with a prevalence ranging from 50 to 96% of PD patients. A significant association was found between hyposmia and cognitive impairment of PD. However, there were no reports of event-related potentials (ERP) performance in PD patients with and without hyposmia for cognitive functions assessment. Purpose: The aim of our study was to compare ERP performance and its association with cognitive domains between PD with and without hyposmia. Methods: Olfactory functions were assessed by Sniffin' Sticks test-16 (SS-16). Twenty-four subjects were included in PD with hyposmia group and nineteen were in PD without hyposmia group. ERP measures were recorded during a delayed match to sample (DMS) task with Chinese characters. The parameters of ERP components including N1, N2, P1, P2, and P3 in retrieval epoch were compared between the two groups and the correlation between ERP results and MOCA item score was also analyzed. Results: No significant difference was found in ERP performance between PD with and without hyposmia. Among all participants, N1 latency was significantly negatively related to visuospatial-executive item score of Montreal Cognitive Assessment (MOCA) (r s = -0.381, P = 0.012) and P1 amplitude was positively associated with language item score of MOCA (r s = 0.302, P = 0.049). Within the normosmic group, a significant association was found between N1 latency and visuospatial-executive item score (r s = -0.619, P = 0.005) and there was also a correlation between language score and P1 amplitude (r s = 0.537, P = 0.018). In the hyposmic group, only a significant correlation was found between N1 latency and clock drawing test performance (r s = -0.413, P = 0.045) rather than visuospatial-executive item score. Furthermore, SS-16 score was not found to be significantly associated with either visuospatial-executive or language item score of MOCA. Conclusion: No significant difference was found in ERP components between PD with and without hyposmia. N1 latency and P1 amplitude were respectively associated with visuospatial-executive and language functions in the normosmic group while in the hyposmic group, only a significant correlation was found between N1 latency and clock drawing test performance rather than visuospatial-executive item score in MOCA.
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Affiliation(s)
- Yi-Qi Lin
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shi-Shuang Cui
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Juan-Juan Du
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Gen Li
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi-Xi He
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ping-Chen Zhang
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Fu
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pei Huang
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Gao
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin-Yin Li
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sheng-Di Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Merola A, Sturchio A, Hacker S, Serna S, Vizcarra JA, Marsili L, Fasano A, Espay AJ. Technology-based assessment of motor and nonmotor phenomena in Parkinson disease. Expert Rev Neurother 2018; 18:825-845. [PMID: 30269610 DOI: 10.1080/14737175.2018.1530593] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
INTRODUCTION The increasing development and availability of portable and wearable technologies is rapidly expanding the field of technology-based objective measures (TOMs) in neurological disorders, including Parkinson disease (PD). Substantial challenges remain in the recognition of disease phenomena relevant to patients and clinicians, as well as in the identification of the most appropriate devices to carry out these measurements. Areas covered: The authors systematically reviewed PubMed for studies employing technology as outcome measures in the assessment of PD-associated motor and nonmotor abnormalities. Expert commentary: TOMs minimize intra- and inter-rater variability in clinical assessments of motor and nonmotor phenomena in PD, improving the accuracy of clinical endpoints. Critical unmet needs for the integration of TOMs into clinical and research practice are the identification and validation of relevant endpoints for individual patients, the capture of motor and nonmotor activities from an ecologically valid environment, the integration of various sensor data into an open-access, common-language platforms, and the definition of a regulatory pathway for approval of TOMs. The current lack of multidomain, multisensor, smart technologies to measure in real time a wide scope of relevant changes remain a significant limitation for the integration of technology into the assessment of PD motor and nonmotor functional disability.
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Affiliation(s)
- Aristide Merola
- a James J and Joan A Gardner Family Center for Parkinson's Disease and Movement Disorders, Department of Neurology , University of Cincinnati , Cincinnati , OH , USA
| | - Andrea Sturchio
- a James J and Joan A Gardner Family Center for Parkinson's Disease and Movement Disorders, Department of Neurology , University of Cincinnati , Cincinnati , OH , USA
| | - Stephanie Hacker
- a James J and Joan A Gardner Family Center for Parkinson's Disease and Movement Disorders, Department of Neurology , University of Cincinnati , Cincinnati , OH , USA
| | - Santiago Serna
- a James J and Joan A Gardner Family Center for Parkinson's Disease and Movement Disorders, Department of Neurology , University of Cincinnati , Cincinnati , OH , USA
| | - Joaquin A Vizcarra
- a James J and Joan A Gardner Family Center for Parkinson's Disease and Movement Disorders, Department of Neurology , University of Cincinnati , Cincinnati , OH , USA
| | - Luca Marsili
- a James J and Joan A Gardner Family Center for Parkinson's Disease and Movement Disorders, Department of Neurology , University of Cincinnati , Cincinnati , OH , USA
| | - Alfonso Fasano
- b Edmond J. Safra Program in Parkinson's disease and the Morton and Gloria Shulman Movement Disorders Clinic , Toronto Western Hospital, University of Toronto; Krembil Brain Institute , Toronto , ON , Canada
| | - Alberto J Espay
- a James J and Joan A Gardner Family Center for Parkinson's Disease and Movement Disorders, Department of Neurology , University of Cincinnati , Cincinnati , OH , USA
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Di Iorio W, Ciarimboli A, Ferriero G, Feleppa M, Baratto L, Matarazzo G, Gentile G, Masiero S, Sale P. Action Observation in People with Parkinson's Disease. A Motor⁻Cognitive Combined Approach for Motor Rehabilitation. A Preliminary Report. Diseases 2018; 6:E58. [PMID: 29973489 PMCID: PMC6164477 DOI: 10.3390/diseases6030058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 06/29/2018] [Accepted: 07/01/2018] [Indexed: 01/15/2023] Open
Abstract
The aim of this study was to assess the role of Action Observation (AO) to improve balance, gait, reduce falls, and to investigate the changes in P300 pattern. Five cognitively intact People with Parkinson’s disease (PwP) were enrolled in this prospective, quasi-experimental study to undergo a rehabilitation program of AO for gait and balance recovery of 60 min, three times a week for four weeks. The statistical analysis showed significant improvements for Unified Parkinson’s Disease Rating Scale (UPDRS) motor section III p = 0.0082, Short form 12-items Healthy Survey (SF-12) Mental Composite Score (MCS) p = 0.0007, Freezing of gait Questionnaire (FOG-Q) p = 0.0030, The 39-items Parkinson’s Disease Questionnaire (PDQ-39) p = 0.100, and for P300ld p = 0.0077. In conclusion, AO reveals to be a safe and feasible paradigm of rehabilitative exercise in cognitively preserved PwP.
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Affiliation(s)
- Walter Di Iorio
- Rehabilitation Unit, Villa Margherita, 82100 Benevento, Italy.
| | | | - Giorgio Ferriero
- Division of Physical Medicine and Rehabilitation, Salvatore Maugeri Foundation, Scientific Institute of Lissone, IRCCS, 20851 Lissone, Italy.
| | - Michele Feleppa
- Neurological Unit and Stroke Unit, Ospedale Civile, 82100 Benevento, Italy.
| | - Luigi Baratto
- Rehabilitation Unit, Villa Margherita, 82100 Benevento, Italy.
| | | | | | - Stefano Masiero
- Department of Neuroscience, University of Padua, 35100 Padua, Italy.
| | - Patrizio Sale
- San Camillo Hospital IRCCS, 30126 Venice, Italy.
- Department of Neuroscience, University of Padua, 35100 Padua, Italy.
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Tokic K, Titlic M, Beganovic-Petrovic A, Suljic E, Romac R, Silic S. P300 Wave Changes in Patients with Parkinson's Disease. Med Arch 2018; 70:453-456. [PMID: 28210020 PMCID: PMC5292223 DOI: 10.5455/medarh.2016.70.453-456] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Introduction: Parkinson’s disease (PD) is chronic progressive neurodegenerative disease. In patients with Parkinson’s disease among other symptoms occur cognitive dysfunctions, which can be shown by P300 wave changes. Aim: The aim of this study was to demonstrate that patients with Parkinson’s disease have reduced amplitude and prolonged latency, longer than 300 ± 10 ms. Material and Methods: The study included 21 patient suffering from Parkinson’s disease. After reviewing the medical records and analyzes the inclusion and exclusion criteria, patients were subjected to the same procedure examining auditory cognitive potentials (P300 wave) and the results were analyzed and compared to reference value for healthy population. Results: We have shown that patients with Parkinson’s disease have prolonged P300 targeted and frequent stimulus latency compared to reference value for healthy population. From 21 patient 18 had a pathological P300 target stimulus amplitude, and even 20 patients had pathological P300 frequent stimulus amplitude. Conclusion: People with Parkinson’s disease have altered P300 which indicates the presence of cognitive dysfunction in these patients.
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Affiliation(s)
| | - Marina Titlic
- School of Medicine, University of Split, Split, Croatia; Department of Neurology, University Hospital Split, Split, Croatia
| | - Amira Beganovic-Petrovic
- Department of Neurology, Clinical Center of Sarajevo University, Sarajevo, Bosnia and Herzegovina
| | - Enra Suljic
- Department of Neurology, Clinical Center of Sarajevo University, Sarajevo, Bosnia and Herzegovina
| | - Rinaldo Romac
- Department of Neurology, University Hospital Split, Split, Croatia
| | - Slobodan Silic
- Department of Neurology, University Hospital Split, Split, Croatia
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11
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Yilmaz FT, Özkaynak SS, Barçin E. Contribution of auditory P300 test to the diagnosis of mild cognitive impairment in Parkinson's disease. Neurol Sci 2017; 38:2103-2109. [PMID: 28887694 DOI: 10.1007/s10072-017-3106-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 08/31/2017] [Indexed: 11/30/2022]
Abstract
Abnormalities in auditory P300 test have been observed in patients with Parkinson's disease (PD). We aimed to investigate whether or not additional electrophysiological tests assist in making the clinical diagnosis of mild cognitive impairment in Parkinson's disease (PD-MCI), and we evaluated P300 changes in patients with non-demented PD and analyzed the correlation between the cognitive features and P300 changes. Twenty patients with PD who had been diagnosed with mild cognitive impairment (PD-MCI group) according to the Movement Disorder Society (MDS) 2012 PD-MCI level II criteria, 21 patients with PD without cognitive impairment (PD-Normal group), and 20 control subjects (control group) who were neurologically normal were examined by the standard auditory oddball paradigm. The N100, P200, N200, and P300 latencies and N100-P200, P200-N200, and N200-P300 amplitudes were measured and analyzed. P300 latencies recorded from Fz, Cz, and Pz and N200 latency recorded from Fz were significantly longer in the PD-MCI group than in the PD-Normal and the control group (respectively p < 0.001, p = 0.041). P300 amplitude recorded from Fz was significantly lower in PD-MCI group than those in the other groups (p = 0.038). While P300 was obtained in all patients in the PD-Normal and the control group, it was lost in 35% of PD-MCI patients. The results show that P300 provides a diagnostic tool for detecting PDMCI. We suggest that P300 prolongation and loss of P300 potential could be used as supportive parameter in the diagnosis of PD-MCI.
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Affiliation(s)
- Fikriye Tüter Yilmaz
- Department of Neurology, Antalya Training and Research Hospital, Varlık Mahallesi Kazım Karabekir Caddesi Soğuksu, 07100, Antalya, Turkey.
| | - Sehür Siber Özkaynak
- School of Medicine, Department of Neurology, Akdeniz University, Pınarbaşı Mahallesi, Akdeniz Üniversitesi Kampüsü, 07070, Antalya, Turkey
| | - Ebru Barçin
- School of Medicine, Department of Neurology, Akdeniz University, Pınarbaşı Mahallesi, Akdeniz Üniversitesi Kampüsü, 07070, Antalya, Turkey
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12
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Butler JS, Fearon C, Killane I, Waechter SM, Reilly RB, Lynch T. Motor preparation rather than decision-making differentiates Parkinson’s disease patients with and without freezing of gait. Clin Neurophysiol 2017; 128:463-471. [DOI: 10.1016/j.clinph.2016.12.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 12/04/2016] [Accepted: 12/18/2016] [Indexed: 11/28/2022]
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13
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Shalash AS, Hassan DM, Elrassas HH, Salama MM, Méndez-Hernández E, Salas-Pacheco JM, Arias-Carrión O. Auditory- and Vestibular-Evoked Potentials Correlate with Motor and Non-Motor Features of Parkinson's Disease. Front Neurol 2017; 8:55. [PMID: 28289399 PMCID: PMC5326766 DOI: 10.3389/fneur.2017.00055] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/07/2017] [Indexed: 11/13/2022] Open
Abstract
Degeneration of several brainstem nuclei has been long related to motor and non-motor symptoms (NMSs) of Parkinson's disease (PD). Nevertheless, due to technical issues, there are only a few studies that correlate that association. Brainstem auditory-evoked potential (BAEP) and vestibular-evoked myogenic potential (VEMP) responses represent a valuable tool for brainstem assessment. Here, we investigated the abnormalities of BAEPs, ocular VEMPs (oVEMPs), and cervical VEMPs (cVEMPs) in patients with PD and its correlation to the motor and NMSs. Fifteen patients diagnosed as idiopathic PD were evaluated by Unified Parkinson's Disease Rating Scale and its subscores, Hoehn and Yahr scale, Schwab and England scale, and Non-Motor Symptoms Scale. PD patients underwent pure-tone, speech audiometry, tympanometry, BAEP, oVEMPs, and cVEMPs, and compared to 15 age-matched control subjects. PD subjects showed abnormal BAEP wave morphology, prolonged absolute latencies of wave V and I-V interpeak latencies. Absent responses were the marked abnormality seen in oVEMP. Prolonged latencies with reduced amplitudes were seen in cVEMP responses. Rigidity and bradykinesia were correlated to the BAEP and cVEMP responses contralateral to the clinically more affected side. Contralateral and ipsilateral cVEMPs were significantly correlated to sleep (p = 0.03 and 0.001), perception (p = 0.03), memory/cognition (p = 0.025), and urinary scores (p = 0.03). The oVEMP responses showed significant correlations to cardiovascular (p = 0.01) and sexual dysfunctions (p = 0.013). PD is associated with BAEP and VEMP abnormalities that are correlated to the motor and some non-motor clinical characteristics. These abnormalities could be considered as potential electrophysiological biomarkers for brainstem dysfunction and its associated motor and non-motor features.
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Affiliation(s)
| | - Dalia Mohamed Hassan
- Audiology Unit, Department of Otorhinolaryngology, Ain Shams University , Cairo , Egypt
| | | | | | - Edna Méndez-Hernández
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango , Durango , Mexico
| | - José M Salas-Pacheco
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango , Durango , Mexico
| | - Oscar Arias-Carrión
- Unidad de Trastornos del Movimiento y Sueño, Hospital General Dr. Manuel Gea González , Ciudad de México , Mexico
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14
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Event-related potentials and cognition in Parkinson’s disease: An integrative review. Neurosci Biobehav Rev 2016; 71:691-714. [DOI: 10.1016/j.neubiorev.2016.08.003] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/30/2016] [Accepted: 08/02/2016] [Indexed: 12/14/2022]
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15
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Attention modulation during motor preparation in Parkinsonian freezers: A time–frequency EEG study. Clin Neurophysiol 2016; 127:3506-3515. [DOI: 10.1016/j.clinph.2016.09.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 09/02/2016] [Accepted: 09/06/2016] [Indexed: 11/19/2022]
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16
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Delgado-Alvarado M, Gago B, Navalpotro-Gomez I, Jiménez-Urbieta H, Rodriguez-Oroz MC. Biomarkers for dementia and mild cognitive impairment in Parkinson's disease. Mov Disord 2016; 31:861-81. [PMID: 27193487 DOI: 10.1002/mds.26662] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 04/15/2016] [Accepted: 04/18/2016] [Indexed: 12/27/2022] Open
Abstract
Cognitive decline is one of the most frequent and disabling nonmotor features of Parkinson's disease. Around 30% of patients with Parkinson's disease experience mild cognitive impairment, a well-established risk factor for the development of dementia. However, mild cognitive impairment in patients with Parkinson's disease is a heterogeneous entity that involves different types and extents of cognitive deficits. Because it is not currently known which type of mild cognitive impairment confers a higher risk of progression to dementia, it would be useful to define biomarkers that could identify these patients to better study disease progression and possible interventions. In this sense, the identification among patients with Parkinson's disease and mild cognitive impairment of biomarkers associated with dementia would allow the early detection of this process. This review summarizes studies from the past 25 years that have assessed the potential biomarkers of dementia and mild cognitive impairment in Parkinson's disease patients. Despite the potential importance, no biomarker has as yet been validated. However, features such as low levels of epidermal and insulin-like growth factors or uric acid in plasma/serum and of Aß in CSF, reduction of cerebral cholinergic innervation and metabolism measured by PET mainly in posterior areas, and hippocampal atrophy in MRI might be indicative of distinct deficits with a distinct risk of dementia in subgroups of patients. Longitudinal studies combining the existing techniques and new approaches are needed to identify patients at higher risk of dementia. © 2016 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Manuel Delgado-Alvarado
- Biodonostia Health Research Institute, San Sebastián, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Belén Gago
- Biodonostia Health Research Institute, San Sebastián, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Irene Navalpotro-Gomez
- Biodonostia Health Research Institute, San Sebastián, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Haritz Jiménez-Urbieta
- Biodonostia Health Research Institute, San Sebastián, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - María C Rodriguez-Oroz
- Biodonostia Health Research Institute, San Sebastián, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.,Neurology Department, University Hospital Donostia, San Sebastián, Spain.,Ikerbasque (Basque Foundation for Science), Bilbao, Spain.,Basque Center on Cognition, Brain and Language (BCBL), San Sebastián, Spain.,Physiology Department, Medical School University of Navarra, Pamplona, Spain
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Veryugina NI, Glozman GM, Vasenina EE. Event-related potentials in Parkinson’s disease. Zh Nevrol Psikhiatr Im S S Korsakova 2015. [DOI: 10.17116/jnevro20151156250-53] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Silva Lopes MD, Souza Melo AD, Nóbrega AC. Delayed latencies of auditory evoked potential P300 are associated with the severity of Parkinson's disease in older patients. ARQUIVOS DE NEURO-PSIQUIATRIA 2014; 72:296-300. [PMID: 24760094 DOI: 10.1590/0004-282x20140005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 01/07/2014] [Indexed: 11/21/2022]
Abstract
UNLABELLED Electrophysiological methods could provide important information about the neurophysiological status in Parkinson's disease (PD). OBJECTIVE To investigate the prolonged auditory P300 latency in PD and its association with the disease clinical stage. METHOD Clinical profiles of 44 patients were evaluated and those in initial and advanced stages of PD were identified. The frequency of altered latencies, median of latencies in each stage, and correlation between latencies and motor and non-motor clinical features were analyzed. Latencies were considered altered when they were more than two standard deviations from the mean of controls, per age group. RESULTS It was verified 10% of alterations in initial stages and 31% in advanced. There was correlation between latencies and non-motor clinical features. Subjects older than 65, in advanced stages, presented a significant increase of latencies. CONCLUSION There was an association between PD severity and P300 prolonged latencies among subjects 65 years old or older.
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Affiliation(s)
- Marcia da Silva Lopes
- Divisão de Neurologia e Epidemiologia, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Ailton de Souza Melo
- Divisão de Neurologia e Epidemiologia, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Ana Caline Nóbrega
- Departamento de Fonoaudiologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
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Tard C, Dujardin K, Bourriez JL, Destée A, Derambure P, Defebvre L, Delval A. Attention modulates step initiation postural adjustments in Parkinson freezers. Parkinsonism Relat Disord 2013; 20:284-9. [PMID: 24405757 DOI: 10.1016/j.parkreldis.2013.11.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 09/13/2013] [Accepted: 11/27/2013] [Indexed: 11/13/2022]
Abstract
BACKGROUND In view of freezing of gait's circumstances of occurrence in Parkinson's disease, attentional resources appear to be involved in step initiation failure. Anticipatory postural adjustments (APAs) are essential because they allow unloading of the stepping leg and so create the conditions required for progression. Our main objective was to establish whether or not a change in attentional load during step initiation modulates APAs differently in patients with vs. without freezing of gait. METHODS Three groups of 15 subjects were recruited: elderly people and parkinsonian patients with or without freezing of gait. Attention was modulated before step execution by means of an auditory oddball discrimination task with event-related potential recording. The primary endpoint was the occurrence of inappropriate APAs following the attentional task, i.e. APAs not followed by a step after an intercurrent auditory stimulus. RESULTS In parkinsonian patients with freezing of gait, inappropriate APAs were recorded in 63% of the trials and were observed more frequently than in patients without freezing of gait (51%) and elderly controls (48%). Furthermore, inappropriate APAs in freezers were longer and more ample than in parkinsonian non-freezers and controls. Lastly, postural preparation was impaired in the parkinsonian patients. CONCLUSION Our results indicate that allocation of attentional resources during step preparation influences the release of APAs differently in freezers and non-freezers. Modulating attentional load is partly responsible for triggering an inappropriate motor program. This difficulty in focusing attention or resisting interference may contribute (at least in part) to the gait initiation failure observed in parkinsonian freezers.
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Affiliation(s)
- Céline Tard
- Université Lille Nord de France, UDSL, France; Troubles cognitifs dégénératifs et vasculaires, EA1046, Lille 2, France; Neurology and Movement Disorders Department, Lille University Medical Center, France
| | - Kathy Dujardin
- Université Lille Nord de France, UDSL, France; Troubles cognitifs dégénératifs et vasculaires, EA1046, Lille 2, France; Neurology and Movement Disorders Department, Lille University Medical Center, France
| | - Jean-Louis Bourriez
- Troubles cognitifs dégénératifs et vasculaires, EA1046, Lille 2, France; Clinical Neurophysiology Department, Lille University Medical Center, France
| | - Alain Destée
- Université Lille Nord de France, UDSL, France; Neurology and Movement Disorders Department, Lille University Medical Center, France
| | - Philippe Derambure
- Université Lille Nord de France, UDSL, France; Troubles cognitifs dégénératifs et vasculaires, EA1046, Lille 2, France; Clinical Neurophysiology Department, Lille University Medical Center, France
| | - Luc Defebvre
- Université Lille Nord de France, UDSL, France; Troubles cognitifs dégénératifs et vasculaires, EA1046, Lille 2, France; Neurology and Movement Disorders Department, Lille University Medical Center, France
| | - Arnaud Delval
- Université Lille Nord de France, UDSL, France; Troubles cognitifs dégénératifs et vasculaires, EA1046, Lille 2, France; Clinical Neurophysiology Department, Lille University Medical Center, France.
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Vitale C, Marcelli V, Allocca R, Santangelo G, Riccardi P, Erro R, Amboni M, Pellecchia MT, Cozzolino A, Longo K, Picillo M, Moccia M, Agosti V, Sorrentino G, Cavaliere M, Marciano E, Barone P. Hearing impairment in Parkinson's disease: expanding the nonmotor phenotype. Mov Disord 2012; 27:1530-5. [PMID: 23032708 DOI: 10.1002/mds.25149] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Revised: 07/03/2012] [Accepted: 07/17/2012] [Indexed: 11/08/2022] Open
Abstract
The objective of this study was to evaluate hearing impairment in patients affected by Parkinson's disease compared with hearing scores observed in normal age- and sex-matched controls. One hundred eighteen consecutive patients with a clinical diagnosis of Parkinson's disease were screened. Severity of motor symptoms and staging were measured with the Unified Parkinson's Disease Rating Scale (section III) and the Hoehn and Yahr scale. Audiometric evaluation consisted of a comprehensive audiologic case history and questionnaire, visual otoscopic examination, acoustic immittance measures (tympanogram and acoustic reflexes), pure tone audiometry, and measurement of brain stem auditory-evoked potentials. Healthy age- and sex-matched subjects were selected as the control group. One hundred six of 118 patients were enrolled. Pure tone audiometry revealed age-dependent high-frequency hearing loss in patients with Parkinson's disease compared with both normative values and values for healthy age- and sex-matched controls (75/106 [71%], χ(2) = 5.959, P = .02; 92/106 [86.8%] vs 60/106 [56.6%], χ(2) = 23.804, P < .001, respectively). Pure tone audiometry scores correlated with Hoehn and Yahr scale scores (P < .05). Brain stem auditory-evoked potentials were normal in all patients. Our patients with Parkinson's disease showed age-dependent peripheral, unilateral, or bilateral hearing impairment. Whether these auditory deficits are intrinsic to Parkinson's disease or secondary to a more complex impaired processing of sensorial inputs occurring over the course of illness remains to be determined. Because α-synuclein is located predominately in the efferent neuronal system within the inner ear, it could affect susceptibility to noise-induced hearing loss or presbycusis. It is feasible that the natural aging process combined with neurodegenerative changes intrinsic to Parkinson's disease might interfere with cochlear transduction mechanisms, thus anticipating presbycusis.
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Caviness JN, Lue L, Adler CH, Walker DG. Parkinson's disease dementia and potential therapeutic strategies. CNS Neurosci Ther 2011; 17:32-44. [PMID: 21199444 PMCID: PMC6493795 DOI: 10.1111/j.1755-5949.2010.00216.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Dementia in Parkinson's disease (PD-D) has only been acknowledged in the recent three decades, but research in this field has accelerated. The purpose of this review was to discuss advances in PD-D regarding biomarker correlates and potential therapeutic targets. Attention and executive dysfunction, memory deficits that improve with cueing, and visual hallucinations are characteristic in PD-D. PD-D dramatically increases the disability and misery of the disease. Current treatment for PD-D is symptomatic, modest, and only transiently effective. There is wide agreement that more effective treatment is needed, but this will require more knowledge about PD-D pathophysiology. Advances in the pathogenesis of PD have focused on the substantia nigra, which is the location from where the pathophysiology of motor symptoms primarily arises in initial stages. In contradistinction, pathology studies have suggested that cognitive decline correlates with cortical and subcortical-cortical projection pathway abnormalities. There is evidence that substantia nigra mechanisms, including protein aggregation of α-synuclein (e.g., Lewy bodies) may also play a role in cortical neuron degeneration. Other different mechanisms, such as Alzheimer's disease pathology (e.g., Aβ aggregation) may be operant for PD-D. Biomarkers of various types are being proposed for the study of PD-D as well as for objective measures of PD-D prediction and progression. Therapeutic targets are currently derived mostly from general PD neurodegeneration research rather than cortical PD neurodegeneration per se. Protein aggregation, genes that are associated with PD, oxidative stress, inflammation, and trophic factors constitute the major classes of therapeutic targets for PD-D. More research is needed on the specific aspects of cortical dysfunction and degeneration that create PD-D.
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Fogelson N, Fernandez-Del-Olmo M, Santos-Garcia D. Contextual processing deficits in Parkinson's disease: the role of the frontostriatal system. Clin Neurophysiol 2010; 122:539-545. [PMID: 20709594 DOI: 10.1016/j.clinph.2010.07.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Revised: 07/15/2010] [Accepted: 07/20/2010] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We investigated the role of the frontostriatal system in contextual processing, by examining neural correlates of local contextual processing in Parkinson's disease (PD). Local context was defined as the occurrence of a short predictive series of visual stimuli occurring before delivery of a target event. METHODS EEG was recorded in eight PD patients and eight controls. Recording blocks consisted of targets preceded by randomized sequences of standards and by sequences including a predictive sequence signaling the occurrence of a subsequent target event. Subjects pressed a button in response to targets. Peak P3b amplitude and latency were evaluated for targets after predictive and non-predictive sequences. RESULTS Behavioral and electrophysiological measures showed that controls processed predicted and random targets differentially, while PD patients processed these similarly. Reaction times were shorter for predictable than for random targets in controls but not in patients. PD patients failed to generate the expected P3b latency shift between predicted and random targets, which is observed in controls. CONCLUSIONS These findings show that predictive local context effects on target detection are altered in PD patients. SIGNIFICANCE The findings suggest a key role for the frontostriatal system in contextual processing.
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Affiliation(s)
- Noa Fogelson
- Department of Psychology, University of A Coruña, La Coruña, Spain.
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Current world literature. Trauma and rehabilitation. Curr Opin Neurol 2008; 21:762-4. [PMID: 18989123 DOI: 10.1097/wco.0b013e32831cbb85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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