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30 Results Found

  • Article
  • Open Access
90 Citations
9,871 Views
17 Pages

Wearable Sensors for Estimation of Parkinsonian Tremor Severity during Free Body Movements

  • Murtadha D. Hssayeni,
  • Joohi Jimenez-Shahed,
  • Michelle A. Burack and
  • Behnaz Ghoraani

28 September 2019

Tremor is one of the main symptoms of Parkinson’s Disease (PD) that reduces the quality of life. Tremor is measured as part of the Unified Parkinson Disease Rating Scale (UPDRS) part III. However, the assessment is based on onsite physical exam...

  • Article
  • Open Access
130 Citations
12,758 Views
17 Pages

29 September 2015

Quantitative assessment of parkinsonian tremor based on inertial sensors can provide reliable feedback on the effect of medication. In this regard, the features of parkinsonian tremor and its unique properties such as motor fluctuations and dyskinesi...

  • Article
  • Open Access
28 Citations
6,232 Views
18 Pages

Classification of Essential Tremor and Parkinson’s Tremor Based on a Low-Power Wearable Device

  • Patrick Locatelli,
  • Dario Alimonti,
  • Gianluca Traversi and
  • Valerio Re

15 October 2020

Among movement disorders, essential tremor is by far the most common, as much as eight times more prevalent than Parkinson’s disease. Although these two conditions differ in their presentation and course, clinicians do not always recognize them...

  • Review
  • Open Access
20 Citations
9,348 Views
25 Pages

Diagnosis and Treatment of Tremor in Parkinson’s Disease Using Mechanical Devices

  • Joji Fujikawa,
  • Ryoma Morigaki,
  • Nobuaki Yamamoto,
  • Hiroshi Nakanishi,
  • Teruo Oda,
  • Yuishin Izumi and
  • Yasushi Takagi

27 December 2022

Background: Parkinsonian tremors are sometimes confused with essential tremors or other conditions. Recently, researchers conducted several studies on tremor evaluation using wearable sensors and devices, which may support accurate diagnosis. Mechani...

  • Article
  • Open Access
127 Citations
13,897 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
6 Citations
6,040 Views
9 Pages

Local Vibrational Therapy for Essential Tremor Reduction: A Clinical Study

  • Silvijus Abramavičius,
  • Mantas Venslauskas,
  • Antanas Vaitkus,
  • Vaidotas Gudžiūnas,
  • Ovidijus Laucius and
  • Edgaras Stankevičius

21 October 2020

Background and objectives: tremor is an unintentional and rhythmic movement of any part of the body that is a typical symptom of Essential Tremor (ET). ET impairs the quality of life of patients and is treated with pharmacotherapy. We investigated th...

  • Review
  • Open Access
2 Citations
5,830 Views
42 Pages

Tremor: Clinical Frameworks, Network Dysfunction and Therapeutics

  • Emmanuel Ortega-Robles and
  • Oscar Arias-Carrión

Background: Tremor is a common but diagnostically challenging movement disorder due to its clinical heterogeneity and overlapping aetiologies. The 2018 consensus introduced a two-axis classification system that redefined tremor syndromes by distingui...

  • Article
  • Open Access
8 Citations
8,122 Views
15 Pages

The Rehapiano—Detecting, Measuring, and Analyzing Action Tremor Using Strain Gauges

  • Norbert Ferenčík,
  • Miroslav Jaščur,
  • Marek Bundzel and
  • Filippo Cavallo

24 January 2020

We have developed a device, the Rehapiano, for the fast and quantitative assessment of action tremor. It uses strain gauges to measure force exerted by individual fingers. This article verifies the device’s capability to measure and monitor the...

  • Article
  • Open Access
7 Citations
2,392 Views
14 Pages

19 March 2024

To date, clinical expert opinion is the gold standard diagnostic technique for Parkinson’s disease (PD), and continuous monitoring is a promising candidate marker. This study assesses the feasibility and performance of a new wearable tool for s...

  • Article
  • Open Access
10 Citations
3,971 Views
16 Pages

Non-Linear Dynamical Analysis of Resting Tremor for Demand-Driven Deep Brain Stimulation

  • Carmen Camara,
  • Narayan P. Subramaniyam,
  • Kevin Warwick,
  • Lauri Parkkonen,
  • Tipu Aziz and
  • Ernesto Pereda

31 May 2019

Parkinson’s Disease (PD) is currently the second most common neurodegenerative disease. One of the most characteristic symptoms of PD is resting tremor. Local Field Potentials (LFPs) have been widely studied to investigate deviations from the t...

  • Article
  • Open Access
24 Citations
4,025 Views
37 Pages

CNN-Based Identification of Parkinson’s Disease from Continuous Speech in Noisy Environments

  • Paul Faragó,
  • Sebastian-Aurelian Ștefănigă,
  • Claudia-Georgiana Cordoș,
  • Laura-Ioana Mihăilă,
  • Sorin Hintea,
  • Ana-Sorina Peștean,
  • Michel Beyer,
  • Lăcrămioara Perju-Dumbravă and
  • Robert Radu Ileșan

Parkinson’s disease is a progressive neurodegenerative disorder caused by dopaminergic neuron degeneration. Parkinsonian speech impairment is one of the earliest presentations of the disease and, along with tremor, is suitable for pre-diagnosis...

  • Review
  • Open Access
10 Citations
6,858 Views
18 Pages

Modeling Parkinson’s Disease and Atypical Parkinsonian Syndromes Using Induced Pluripotent Stem Cells

  • Takayasu Mishima,
  • Shinsuke Fujioka,
  • Jiro Fukae,
  • Junichi Yuasa-Kawada and
  • Yoshio Tsuboi

4 December 2018

Parkinson’s disease (PD) and atypical parkinsonian syndromes are age-dependent multifactorial neurodegenerative diseases, which are clinically characterized by bradykinesia, tremor, muscle rigidity and postural instability. Although these disea...

  • Review
  • Open Access
93 Citations
14,955 Views
23 Pages

Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS): Pathophysiology and Clinical Implications

  • Ana Maria Cabal-Herrera,
  • Nattaporn Tassanakijpanich,
  • Maria Jimena Salcedo-Arellano and
  • Randi J. Hagerman

The fragile X-associated tremor/ataxia syndrome (FXTAS) is a neurodegenerative disorder seen in older premutation (55–200 CGG repeats) carriers of FMR1. The premutation has excessive levels of FMR1 mRNA that lead to toxicity and mitochondrial d...

  • Article
  • Open Access
47 Citations
9,248 Views
15 Pages

Video-Based Hand Movement Analysis of Parkinson Patients before and after Medication Using High-Frame-Rate Videos and MediaPipe

  • Gökhan Güney,
  • Talisa S. Jansen,
  • Sebastian Dill,
  • Jörg B. Schulz,
  • Manuel Dafotakis,
  • Christoph Hoog Antink and
  • Anne K. Braczynski

20 October 2022

Tremor is one of the common symptoms of Parkinson’s disease (PD). Thanks to the recent evolution of digital technologies, monitoring of PD patients’ hand movements employing contactless methods gained momentum. Objective: We aimed to quan...

  • Article
  • Open Access
1,715 Views
17 Pages

Clinical and Genetic Characteristics of Patients with Essential Tremor Who Develop Parkinson’s Disease

  • Gulseren Buyukserbetci,
  • Hilmi Bolat,
  • Ummu Serpil Sari,
  • Gizem Turan,
  • Ayla Solmaz Avcikurt and
  • Figen Esmeli

29 June 2025

Background and Objectives: Essential tremor (ET) is a common neurological disorder, typically presenting as bilateral, rhythmic, and symmetric kinetic or postural tremors. In contrast, Parkinson’s disease (PD) is a progressive neurodegenerative...

  • Review
  • Open Access
1 Citations
3,741 Views
21 Pages

Characterizing Secondary and Atypical Parkinsonisms: Defining Features and Clinical Variability

  • Iraís Viveros-Martínez,
  • Cristofer Zarate-Calderon,
  • Donají Chi-Castañeda,
  • Porfirio Carrillo,
  • Gonzalo E. Aranda-Abreu,
  • Armando J. Martínez,
  • Jorge Manzo,
  • Genaro A. Coria and
  • Luis I. García

28 November 2024

Parkinsonism is a clinical syndrome characterized by akinesia/bradykinesia, muscle rigidity, resting tremor, and postural instability. Within the group of parkinsonisms is Parkinson’s disease, also known as neurodegenerative parkinsonian syndro...

  • Article
  • Open Access
559 Views
21 Pages

13 December 2025

Parkinson’s disease (PD) is a progressive neurodegenerative disorder whose early symptoms, especially mild tremor, are often clinically imperceptible. Early detection is crucial for initiating neuroprotective interventions to slow dopaminergic...

  • Article
  • Open Access
5 Citations
2,954 Views
17 Pages

Stacked Model-Based Classification of Parkinson’s Disease Patients Using Imaging Biomarker Data

  • Jigna Hathaliya,
  • Hetav Modi,
  • Rajesh Gupta,
  • Sudeep Tanwar,
  • Fayez Alqahtani,
  • Magdy Elghatwary,
  • Bogdan-Constantin Neagu and
  • Maria Simona Raboaca

29 July 2022

Parkinson’s disease (PSD) is a neurological disorder of the brain where nigrostriatal integrity functions lead to motor and non-motor-based symptoms. Doctors can assess the patient based on the patient’s history and symptoms; however, the symptoms ar...

  • Article
  • Open Access
3 Citations
3,640 Views
10 Pages

Acute Levodopa Challenge in Atypical Parkinsonism: Comprehensive Analysis of Individual Motor Responses

  • Lan Ye,
  • Sam Sadeghi Sani,
  • Linda Veith Sanches,
  • Lea Farina Magdalena Krey,
  • Florian Wegner,
  • Matthias Höllerhage,
  • Christoph Schrader,
  • Günter Höglinger and
  • Martin Klietz

29 September 2024

The acute levodopa challenge is widely used to distinguish Parkinson’s disease (PD) from atypical parkinsonian syndromes (APSs) such as multiple system atrophy (MSA) and progressive supranuclear palsy (PSP). In APSs, very few patients present a...

  • Article
  • Open Access
4 Citations
3,635 Views
15 Pages

The Utilization and Impact of Dopamine Transporter Imaging in Diagnosing Movement Disorders at a Tertiary Care Hospital in Greece

  • Georgia Xiromerisiou,
  • Iro Boura,
  • Eleni Barmpounaki,
  • Panagiotis Georgoulias,
  • Efthimios Dardiotis,
  • Cleanthe Spanaki and
  • Varvara Valotassiou

Background/Objectives: The introduction of dopamine transporter scan (DaTscan) in clinical diagnostics has revolutionized the way clinicians approach movement disorders, offering valuable insights into presynaptic striatal dopaminergic deficits and r...

  • Article
  • Open Access
31 Citations
3,923 Views
12 Pages

Cascaded Deep Learning Frameworks in Contribution to the Detection of Parkinson’s Disease

  • Nalini Chintalapudi,
  • Gopi Battineni,
  • Mohmmad Amran Hossain and
  • Francesco Amenta

Parkinson’s disease (PD) is a progressive neurodegenerative disorder characterized by motor impairment, as well as tremors, stiffness, and rigidity. Besides the typical motor symptomatology, some Parkinsonians experience non-motor symptoms such...

  • Article
  • Open Access
1 Citations
1,496 Views
15 Pages

A2A Adenosine Receptor Antagonists and Their Efficacy in Rat Models of Parkinson’s Disease

  • Andrea Spinaci,
  • Michela Buccioni,
  • Diego Dal Ben,
  • Beatrice Francucci,
  • Karl-Norbert Klotz,
  • Gabriella Marucci,
  • Nicola Simola,
  • Micaela Morelli,
  • Annalisa Pinna and
  • Catia Lambertucci
  • + 1 author

26 February 2025

Parkinson’s disease (PD) represents a growing challenge to global health, as it involves millions of people. The high grade of disability is due to the loss of dopaminergic neuron activity, and levodopa is the gold-standard therapy used to rest...

  • Article
  • Open Access
3,142 Views
13 Pages

22 February 2021

Manganese (Mn) is a biologically essential metal, critical as a cofactor for numerous enzymes such a glutamine synthetase and kinases such as ataxia-telangiectasia mutated (ATM). Similar to other essential metals such as iron and zinc, proper levels...

  • Review
  • Open Access
178 Citations
17,500 Views
31 Pages

Parkinsonism is a progressive motor disease that affects 1.5 million Americans and is the second most common neurodegenerative disease after Alzheimer’s. Typical neuropathological features of Parkinson’s disease (PD) include degeneration of dopaminer...

  • Article
  • Open Access
1,111 Views
26 Pages

22 September 2025

Parkinson’s disease (PD) is a progressive neurodegenerative disorder that impairs motor function, often causing tremors and difficulty with movement control. A promising diagnostic method involves analyzing hand-drawn patterns, such as spirals...

  • Article
  • Open Access
2 Citations
4,390 Views
15 Pages

Pilot Study for Correlation of Heart Rate Variability and Dopamine Transporter Brain Imaging in Patients with Parkinsonian Syndrome

  • Devdutta S. Warhadpande,
  • Jiayan Huo,
  • William A. Libling,
  • Carol Stuehm,
  • Bijan Najafi,
  • Scott Sherman,
  • Hong Lei,
  • Janet Meiling Roveda and
  • Phillip H. Kuo

5 July 2022

Background: Parkinsonian syndrome (PS) is a broad category of neurodegenerative movement disorders that includes Parkinson disease, multiple system atrophy (MSA), progressive supranuclear palsy, and corticobasal degeneration. Parkinson disease (PD) i...

  • Review
  • Open Access
9 Citations
9,035 Views
12 Pages

25 March 2013

Parkinson’s disease is the second most prevalent disease of the brain. It is characterized by midbrain dopaminergic neuronal degeneration accompanied by Lewy bodies, intra-cytoplasmic neuronal inclusions that consist mainly of alpha-synuclein. The ca...

  • Review
  • Open Access
90 Citations
11,019 Views
16 Pages

Molecular Imaging of the Dopamine Transporter

  • Giovanni Palermo and
  • Roberto Ceravolo

10 August 2019

Dopamine transporter (DAT) single-photon emission tomography (SPECT) with (123)Ioflupane is a widely used diagnostic tool for patients with suspected parkinsonian syndromes, as it assists with differentiating between Parkinson’s disease (PD) or...

  • Article
  • Open Access
2 Citations
2,266 Views
20 Pages

Applying Wearable Sensors and Machine Learning to the Diagnostic Challenge of Distinguishing Parkinson’s Disease from Other Forms of Parkinsonism

  • Rana M. Khalil,
  • Lisa M. Shulman,
  • Ann L. Gruber-Baldini,
  • Stephen G. Reich,
  • Joseph M. Savitt,
  • Jeffrey M. Hausdorff,
  • Rainer von Coelln and
  • Michael P. Cummings

Background/Objectives: Parkinson’s Disease (PD) and other forms of parkinsonism share motor symptoms, including tremor, bradykinesia, and rigidity. The overlap in their clinical presentation creates a diagnostic challenge, as conventional metho...

  • Brief Report
  • Open Access
4 Citations
2,229 Views
11 Pages

Altered Cerebral Vasoreactivity on Transcranial Color-Coded Sonography Related to Akinetic-Rigid Phenotype of Parkinson’s Disease: Interim Analysis of a Cross-Sectional Study

  • Rodrigo Tavares Brisson,
  • Rita de Cássia Leite Fernandes,
  • Josevânia Fulgêncio de Lima Arruda,
  • Thiffanny Cristini Cassiano da S. M. Rocha,
  • Nathália de Góes Duarte Santos,
  • Liene Duarte Silva,
  • Marco Antônio Sales Dantas de Lima and
  • Ana Lucia Zuma de Rosso

Background: A correlation between worse functional outcomes in Parkinson’s disease (PD) patients with cerebrovascular disease (CVD) or the Akinetic-rigid phenotype has been argued in recent studies. We aimed to evaluate the association of cereb...