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44 Results Found

  • Article
  • Open Access
5 Citations
2,710 Views
17 Pages

Parkinson’s Disease Diagnosis Using Laplacian Score, Gaussian Process Regression and Self-Organizing Maps

  • Mehrbakhsh Nilashi,
  • Rabab Ali Abumalloh,
  • Sultan Alyami,
  • Abdullah Alghamdi and
  • Mesfer Alrizq

Parkinson’s disease (PD) is a complex degenerative brain disease that affects nerve cells in the brain responsible for body movement. Machine learning is widely used to track the progression of PD in its early stages by predicting unified Parki...

  • Article
  • Open Access
6 Citations
2,372 Views
17 Pages

29 September 2024

Abstract: Background: An important neurological disorder of Parkinson’s Disease (PD) is characterized by motor and non-motor activity of the patients. Empirical condition of the patient: PD assessment uses the Movement Disorder Society Uni...

  • Article
  • Open Access
5 Citations
4,481 Views
17 Pages

Hand Pronation–Supination Movement as a Proxy for Remotely Monitoring Gait and Posture Stability in Parkinson’s Disease

  • Yusuf Ozgur Cakmak,
  • Can Olcek,
  • Burak Ozsoy,
  • Prashanna Khwaounjoo,
  • Gunes Kiziltan,
  • Hulya Apaydin,
  • Aysegul Günduz,
  • Ozgur Oztop Cakmak,
  • Sibel Ertan and
  • Didem Gokcay
  • + 1 author

25 February 2022

The Unified Parkinson’s Disease Rating Scale (UPDRS) is a subjective Parkinson’s Disease (PD) physician scoring/monitoring system. To date, there is no single upper limb wearable/non-contact system that can be used objectively to assess a...

  • Article
  • Open Access
3 Citations
3,289 Views
10 Pages

Clinical Usefulness of Retropulsion Tests in Persons with Mild to Moderate Parkinson’s Disease

  • Beata Lindholm,
  • Erika Franzén,
  • Wojciech Duzynski,
  • Per Odin and
  • Peter Hagell

People with Parkinson’s disease (PwPD) have an increased risk for falls and near falls. They have particular difficulties with maintaining balance against an external perturbation, and several retropulsion tests exist. The Unified PD Rating Sca...

  • Article
  • Open Access
7 Citations
4,880 Views
16 Pages

A First Methodological Development and Validation of ReTap: An Open-Source UPDRS Finger Tapping Assessment Tool Based on Accelerometer-Data

  • Jeroen G. V. Habets,
  • Rachel K. Spooner,
  • Varvara Mathiopoulou,
  • Lucia K. Feldmann,
  • Johannes L. Busch,
  • Jan Roediger,
  • Bahne H. Bahners,
  • Alfons Schnitzler,
  • Esther Florin and
  • Andrea A. Kühn

31 May 2023

Bradykinesia is a cardinal hallmark of Parkinson’s disease (PD). Improvement in bradykinesia is an important signature of effective treatment. Finger tapping is commonly used to index bradykinesia, albeit these approaches largely rely on subjec...

  • Review
  • Open Access
6 Citations
7,204 Views
29 Pages

Neurological Examination via Telemedicine: An Updated Review Focusing on Movement Disorders

  • Efthalia Angelopoulou,
  • Christos Koros,
  • Evangelia Stanitsa,
  • Ioannis Stamelos,
  • Dionysia Kontaxopoulou,
  • Stella Fragkiadaki,
  • John D. Papatriantafyllou,
  • Evangelia Smaragdaki,
  • Kalliopi Vourou and
  • Sokratis G. Papageorgiou
  • + 3 authors

Patients with movement disorders such as Parkinson’s disease (PD) living in remote and underserved areas often have limited access to specialized healthcare, while the feasibility and reliability of the video-based examination remains unclear....

  • Article
  • Open Access
22 Citations
4,458 Views
16 Pages

Clinical Disease Severity Mediates the Relationship between Stride Length and Speed and the Risk of Falling in Parkinson’s Disease

  • Yun-Ru Lai,
  • Chia-Yi Lien,
  • Chih-Cheng Huang,
  • Wei-Che Lin,
  • Yueh-Sheng Chen,
  • Chiun-Chieh Yu,
  • Ben-Chung Cheng,
  • Chia-Te Kung,
  • Chien-Feng Kung and
  • Cheng-Hsien Lu
  • + 3 authors

31 January 2022

The shuffling gait with slowed speed and reduced stride length has been considered classic clinical features in idiopathic Parkinson’s disease (PD), and the risk of falling increases as the disease progresses. This raises the possibility that c...

  • Article
  • Open Access
1 Citations
2,172 Views
12 Pages

Background and Objectives: Currently, no tool exists to predict clinical outcomes in patients with advanced Parkinson’s disease (PD) under levodopa–carbidopa intestinal gel (LCIG) treatment. The aim of this study was to develop a novel de...

  • Article
  • Open Access
14 Citations
4,100 Views
15 Pages

Improving Medication Regimen Recommendation for Parkinson’s Disease Using Sensor Technology

  • Jeremy Watts,
  • Anahita Khojandi,
  • Rama Vasudevan,
  • Fatta B. Nahab and
  • Ritesh A. Ramdhani

20 May 2021

Parkinson’s disease medication treatment planning is generally based on subjective data obtained through clinical, physician-patient interactions. The Personal KinetiGraph™ (PKG) and similar wearable sensors have shown promise in enabling objective,...

  • Article
  • Open Access
4 Citations
2,983 Views
13 Pages

(1) Background: The correlation between dysosmia with quality of life (QoL) in patients with PD was rarely reported. The study aimed to examine the effect of dysosmia on motor function and QoL in PD. (2) Methods: This cross-sectional study, performed...

  • Article
  • Open Access
6 Citations
4,383 Views
9 Pages

Relationship between Motor Estimation Error and Physical Function in Patients with Parkinson’s Disease

  • Katsuya Sakai,
  • Tsubasa Kawasaki,
  • Yumi Ikeda,
  • Keita Tominaga and
  • Kohei Kurihara

Background: Motor estimation error is an index of how accurately one’s body movement is recognized. This study determines whether motor estimation error distance is a Parkinson’s disease (PD)- or age-related disability using a two-step ta...

  • Article
  • Open Access
7 Citations
3,450 Views
17 Pages

Sensor-Based Quantification of MDS-UPDRS III Subitems in Parkinson’s Disease Using Machine Learning

  • Rene Peter Bremm,
  • Lukas Pavelka,
  • Maria Moscardo Garcia,
  • Laurent Mombaerts,
  • Rejko Krüger and
  • Frank Hertel

29 March 2024

Wearable sensors could be beneficial for the continuous quantification of upper limb motor symptoms in people with Parkinson’s disease (PD). This work evaluates the use of two inertial measurement units combined with supervised machine learning...

  • Article
  • Open Access
7 Citations
1,999 Views
7 Pages

23 September 2022

Backgrounds: We aimed to understand the association between initial vestibular function examination and postural instability (PI) development in Parkinson’s disease (PD). Methods: After screening 51 PD patients, we divided 31 patients into 2 gr...

  • Proceeding Paper
  • Open Access
3 Citations
1,657 Views
7 Pages

This preliminary study used the stacking ensemble to explore the major elements (factors) which could predict depression in patients with Parkinson’s disease and presented baseline data for developing a nomogram prognostic index for predicting...

  • Article
  • Open Access
1,575 Views
13 Pages

Non-Motor Symptoms as Markers of Disease Severity in Parkinson’s Disease: Associations Between Constipation, Depression, REM Sleep Behavior Disorder, and Motor Impairment

  • João Paulo Mota Telles,
  • Júlia Haddad Labello,
  • Lucas Camargo,
  • Carla Pastora-Sesin,
  • Anna Carolyna Gianlorenço and
  • Felipe Fregni

Background: This study aims to investigate the association between the presence and severity of non-motor symptoms (constipation, REM sleep behavior disorder [RBD], hyposmia, and depression) and the severity of motor impairment in Parkinson’s d...

  • Article
  • Open Access
4 Citations
790 Views
11 Pages

Modeling Long-Term Health and Economic Implications of New Treatment Strategies for Parkinson’s Disease: An Individual Patient Simulation Study

  • Conor Chandler,
  • Henri Folse,
  • Peter Gal,
  • Ameya Chavan,
  • Irina Proskorovsky,
  • Conrado Franco-Villalobos,
  • Yunyang Wang and
  • Alex Ward

Background: Simulation modeling facilitates the estimation of long-term health and economic outcomes to inform healthcare decision-making. Objective: To develop a framework to simulate progression of Parkinson’s disease (PD), capturing motor and non...

  • Article
  • Open Access
14 Citations
3,852 Views
14 Pages

The rapid eye movement sleep behavior disorder (RBD) of Parkinson’s disease (PD) patients can be improved with medications such as donepezil as long as it is diagnosed with a thorough medical examination, since identifying a high-risk group of...

  • Article
  • Open Access
2 Citations
3,526 Views
11 Pages

Deterioration of Cough, Respiratory, and Vocal Cord Functions in Patients with Multiple System Atrophy

  • Takashi Asakawa,
  • Mieko Ogino,
  • Naomi Tominaga,
  • Naoto Ozaki,
  • Jin Kubo and
  • Wataru Kakuda

2 October 2023

The purpose of this study was to clarify changes in cough function in patients with multiple system atrophy (MSA). Seventeen probable patients with MSA were studied. Peak cough flow (PCF), respiratory function (percentage of vital capacity, percentag...

  • Article
  • Open Access
27 Citations
3,828 Views
8 Pages

Frequency and Determinants of Olfactory Hallucinations in Parkinson’s Disease Patients

  • Paolo Solla,
  • Carla Masala,
  • Ilenia Pinna,
  • Tommaso Ercoli,
  • Francesco Loy,
  • Gianni Orofino,
  • Laura Fadda and
  • Giovanni Defazio

Background: Olfactory dysfunctions and hallucinations are considered common nonmotor symptoms in Parkinson’s disease (PD). Visual and auditory hallucinations are well-known; however, olfactory hallucinations (OHs) are not fully investigated. The aim...

  • Article
  • Open Access
1 Citations
1,127 Views
16 Pages

Feasibility of an App-Assisted and Home-Based Video Version of the Timed Up and Go Test for Patients with Parkinson Disease: vTUG

  • Marcus Grobe-Einsler,
  • Anna Gerdes,
  • Tim Feige,
  • Vivian Maas,
  • Clare Matthews,
  • Alejandro Mendoza García,
  • Laia Comas Fages,
  • Elin Haf Davies,
  • Thomas Klockgether and
  • Björn H. Falkenburger

28 May 2025

Background: Parkinson Disease (PD) is a progressive neurodegenerative disorder. Current therapeutic trials investigate treatments that can potentially modify the disease course. Testing their efficiency requires outcome assessments that are relevant...

  • Article
  • Open Access
1,277 Views
18 Pages

29 October 2025

Background/Objectives: Parkinson’s disease (PD) affects both articulatory and phonatory subsystems, leading to characteristic speech changes known as hypokinetic dysarthria. However, few studies have jointly analyzed these subsystems within the...

  • Article
  • Open Access
691 Views
14 Pages

Functional and Structural Connectivity Correlates of Axial Symptom Outcomes After Pallidal Deep Brain Stimulation in Parkinson’s Disease

  • Gilberto Perez Rodriguez Garcia,
  • Erik Middlebrooks,
  • Shanshan Mei,
  • Takashi Tsuboi,
  • Joshua Wong,
  • Matthew Burns,
  • Coralie de Hemptinne and
  • Adolfo Ramirez-Zamora

20 November 2025

Background/Objectives: Deep brain stimulation (DBS) of the globus pallidus interna (GPi) is a safe and established therapy for management of refractory motor fluctuations and dyskinesia in Parkinson’s disease (PD). However, the relationship bet...

  • Article
  • Open Access
4 Citations
1,457 Views
14 Pages

The Relevance of Intraoperative Clinical and Accelerometric Measurements for Thalamotomy Outcome

  • Annemarie Smid,
  • D. L. Marinus Oterdoom,
  • Rik W. J. Pauwels,
  • Katalin Tamasi,
  • Jan Willem J. Elting,
  • Anthony R. Absalom,
  • Teus van Laar,
  • J. Marc C. van Dijk and
  • Gea Drost

10 September 2023

Thalamotomy alleviates medication-refractory tremors in patients with movement disorders such as Parkinson’s Disease (PD), Essential tremor (ET), and Holmes tremor (HT). However, limited data are available on tremor intensity during different t...

  • Article
  • Open Access
10 Citations
5,651 Views
16 Pages

Background and Objective: Dietary constituents may affect the progression of Parkinson’s disease (PD). This study aimed to assess the contribution of dietary intake of vitamins and minerals to the severity, motor and non-motor symptoms, and ris...

  • Article
  • Open Access
16 Citations
4,521 Views
17 Pages

An Explainable Spatial-Temporal Graphical Convolutional Network to Score Freezing of Gait in Parkinsonian Patients

  • Hyeokhyen Kwon,
  • Gari D. Clifford,
  • Imari Genias,
  • Doug Bernhard,
  • Christine D. Esper,
  • Stewart A. Factor and
  • J. Lucas McKay

4 February 2023

Freezing of gait (FOG) is a poorly understood heterogeneous gait disorder seen in patients with parkinsonism which contributes to significant morbidity and social isolation. FOG is currently measured with scales that are typically performed by moveme...

  • Article
  • Open Access
6 Citations
2,242 Views
10 Pages

Development and Validation of a Prediction Model for Anxiety Improvement after Deep Brain Stimulation for Parkinson Disease

  • Bowen Chang,
  • Jiaming Mei,
  • Chen Ni,
  • Chi Xiong,
  • Peng Chen,
  • Manli Jiang and
  • Chaoshi Niu

28 January 2023

Background: Parkinson’s disease (PD) represents one of the most frequently seen neurodegenerative disorders, while anxiety accounts for its non-motor symptom (NMS), and it has greatly affected the life quality of PD cases. Bilateral subthalamic...

  • Article
  • Open Access
48 Citations
5,688 Views
14 Pages

Because it is possible to delay the progression of dementia if it is detected and treated in an early stage, identifying mild cognitive impairment (MCI) is an important primary goal of dementia treatment. The objectives of this study were to develop...

  • Article
  • Open Access
1 Citations
2,376 Views
26 Pages

Predicting Cognitive Decline in Parkinson’s Disease Using Artificial Neural Networks: An Explainable AI Approach

  • Laura Colautti,
  • Monica Casella,
  • Matteo Robba,
  • Davide Marocco,
  • Michela Ponticorvo,
  • Paola Iannello,
  • Alessandro Antonietti,
  • Camillo Marra and
  • for the CPP Integrated Parkinson’s Database

Background/Objectives: The study aims to identify key cognitive and non-cognitive variables (e.g., clinical, neuroimaging, and genetic data) predicting cognitive decline in Parkinson’s disease (PD) patients using machine learning applied to a s...

  • Article
  • Open Access
2 Citations
3,938 Views
12 Pages

Assessment of Motor Dysfunction with Virtual Reality in Patients Undergoing [123I]FP-CIT SPECT/CT Brain Imaging

  • Jeanne P. Vu,
  • Ghiam Yamin,
  • Zabrina Reyes,
  • Alex Shin,
  • Alexander Young,
  • Irene Litvan,
  • Pengtao Xie and
  • Sebastian Obrzut

26 March 2021

[123I]FP-CIT SPECT has been valuable for distinguishing Parkinson disease (PD) from essential tremor. However, its performance for quantitative assessment of motor dysfunction has not been established. A virtual reality (VR) application was developed...

  • Article
  • Open Access
1 Citations
2,589 Views
19 Pages

This study presents a hybrid ensemble learning framework for the joint detection and motor severity prediction of Parkinson’s disease (PD) using biomedical voice features. The proposed architecture integrates a deep multimodal fusion model with...

  • Article
  • Open Access
128 Citations
13,905 Views
14 Pages

Automatic Classification of Tremor Severity in Parkinson’s Disease Using a Wearable Device

  • Hyoseon Jeon,
  • Woongwoo Lee,
  • Hyeyoung Park,
  • Hong Ji Lee,
  • Sang Kyong Kim,
  • Han Byul Kim,
  • Beomseok Jeon and
  • Kwang Suk Park

9 September 2017

Although there is clinical demand for new technology that can accurately measure Parkinsonian tremors, automatic scoring of Parkinsonian tremors using machine-learning approaches has not yet been employed. This study aims to fill this gap by proposin...

  • Article
  • Open Access
491 Views
14 Pages

Background: Double-support percentage (DS%) is often interpreted as a proxy for dynamic gait stability, yet its biomechanical meaning is confounded by its strong inverse coupling with walking speed. This distinction is critical in Parkinson’s d...

  • Article
  • Open Access
6 Citations
2,043 Views
12 Pages

Background: Current research on the prediction of movement complications associated with levodopa therapy in Parkinson’s disease (PD) is limited. levodopa-induced dyskinesia (LID) is a movement complication that seriously affects the life quali...

  • Article
  • Open Access
18 Citations
3,017 Views
17 Pages

24 January 2023

Sleep disturbances are the most prevalent non-motor symptoms in the preclinical stage of Parkinson’s disease (PD). Adenosine, glial-derived neurotrophic factor (GDNF), and associated neurotransmitters are crucial in the control of sleep arousal...

  • Article
  • Open Access
7 Citations
3,036 Views
10 Pages

Precision Balance Assessment in Parkinson’s Disease: Utilizing Vision-Based 3D Pose Tracking for Pull Test Analysis

  • Nina Ellrich,
  • Kasimir Niermeyer,
  • Daniela Peto,
  • Julian Decker,
  • Urban M. Fietzek,
  • Sabrina Katzdobler,
  • Günter U. Höglinger,
  • Klaus Jahn,
  • Andreas Zwergal and
  • Max Wuehr

6 June 2024

Postural instability is a common complication in advanced Parkinson’s disease (PD) associated with recurrent falls and fall-related injuries. The test of retropulsion, consisting of a rapid balance perturbation by a pull in the backward directi...

  • Article
  • Open Access
1,920 Views
16 Pages

29 May 2025

Parkinson’s disease (PD) is the second-most common neurodegenerative disease. With more than 20,000 new diagnosed cases each year, PD affects millions of individuals worldwide and is most prevalent in the elderly population. The current clinica...

  • Brief Report
  • Open Access
7 Citations
3,903 Views
9 Pages

GABAA Receptor Benzodiazepine Binding Sites and Motor Impairments in Parkinson’s Disease

  • Nicolaas I. Bohnen,
  • Jaimie Barr,
  • Robert Vangel,
  • Stiven Roytman,
  • Rebecca Paalanen,
  • Kirk A. Frey,
  • Peter J. H. Scott and
  • Prabesh Kanel

12 December 2023

Flumazenil is an allosteric modulator of the γ-aminobutyric acid-A receptor (GABAAR) benzodiazepine binding site that could normalize neuronal signaling and improve motor impairments in Parkinson’s disease (PD). Little is known about how...

  • Review
  • Open Access
1 Citations
5,118 Views
19 Pages

Deep Brain Stimulation for Parkinson’s Disease—A Narrative Review

  • Rafał Wójcik,
  • Anna Dębska,
  • Karol Zaczkowski,
  • Bartosz Szmyd,
  • Małgorzata Podstawka,
  • Ernest J. Bobeff,
  • Michał Piotrowski,
  • Paweł Ratajczyk,
  • Dariusz J. Jaskólski and
  • Karol Wiśniewski

Deep brain stimulation (DBS) is an established neurosurgical treatment for Parkinson’s disease (PD), mainly targeting motor symptoms resistant to pharmacological therapy. This review examines strategies to optimize DBS using advanced anatomical...

  • Article
  • Open Access
2 Citations
2,693 Views
11 Pages

Alzheimer’s Disease Related Biomarkers Were Associated with Amnestic Cognitive Impairment in Parkinson’s Disease: A Cross-Sectional Cohort Study

  • Xiaofan Xue,
  • Shanshan Mei,
  • Anqi Huang,
  • Zhiyue Wu,
  • Jingrong Zeng,
  • Haixia Song,
  • Jing An,
  • Lijuan Zhang,
  • Guozhen Liu and
  • Piu Chan
  • + 4 authors

Background: Cognitive impairment is common in patients with Parkinson’s disease (PD) and occurs through multiple mechanisms, including Alzheimer’s disease (AD) pathology and the involvement of α-synucleinopathies. We aimed to invest...

  • Article
  • Open Access
8 Citations
3,437 Views
12 Pages

Reduced Gray Matter Volume and Risk of Falls in Parkinson’s Disease with Dementia Patients: A Voxel-Based Morphometry Study

  • Kai-Lun Cheng,
  • Li-Han Lin,
  • Po-Cheng Chen,
  • Pi-Ling Chiang,
  • Yueh-Sheng Chen,
  • Hsiu-Ling Chen,
  • Meng-Hsiang Chen,
  • Kun-Hsien Chou,
  • Shau-Hsuan Li and
  • Wei-Che Lin
  • + 1 author

Purpose: Risk of falls is a common sequela affecting patients with Parkinson’s disease (PD). Although motor impairment and dementia are correlated with falls, associations of brain structure and cognition deficits with falls remain unclear. Mat...

  • Article
  • Open Access
2,441 Views
17 Pages

Exploring the Impact of Robotic Hand Rehabilitation on Functional Recovery in Parkinson’s Disease: A Randomized Controlled Trial

  • Loredana Raciti,
  • Desiree Latella,
  • Gianfranco Raciti,
  • Chiara Sorbera,
  • Mirjam Bonanno,
  • Laura Ciatto,
  • Giuseppe Andronaco,
  • Angelo Quartarone,
  • Giuseppe Di Lorenzo and
  • Rocco Salvatore Calabrò

Background/Objective: Parkinson’s disease (PD) is characterized by motor and cognitive impairments that significantly affect quality of life. Robotic-assisted therapies, such as the AMADEO® system, have shown potential in rehabilitating upp...

  • Article
  • Open Access
20 Citations
4,260 Views
12 Pages

Correlation between Executive Network Integrity and Sarcopenia in Patients with Parkinson’s Disease

  • Chih-Ying Lee,
  • Hsiu-Ling Chen,
  • Pei-Chin Chen,
  • Yueh-Sheng Chen,
  • Pi-Ling Chiang,
  • Cheng-Kang Wang,
  • Cheng-Hsien Lu,
  • Meng-Hsiang Chen,
  • Kun-Hsien Chou and
  • Wei-Che Lin
  • + 1 author

Background: Sarcopenia is critically associated with morbidity and mortality in the progression of Parkinson’s disease (PD). However, analyses of clinical severity and brain changes, such as white matter (WM) alterations in PD patients with sar...

  • Article
  • Open Access
6 Citations
3,402 Views
16 Pages

19 April 2025

The clinical diagnosis of Parkinson’s disease (PD) primarily relies on clinician-administered observational assessment tools, such as the Unified Parkinson’s Disease Rating Scale (UPDRS). However, these approaches are significantly influe...

  • Article
  • Open Access
909 Views
21 Pages

Multimodal Biomarker Analysis of LRRK2-Linked Parkinson’s Disease Across SAA Subtypes

  • Vivian Jiang,
  • Cody K Huang,
  • Grace Gao,
  • Kaiqi Huang,
  • Lucy Yu,
  • Chloe Chan,
  • Andrew Li and
  • Zuyi Huang

27 October 2025

The LRRK2+ SAA− cohort of Parkinson’s disease (PD), characterized by the absence of hallmark α-synuclein pathology, remains under-explored. This limits opportunities for early detection and targeted intervention. This study analyzes...