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International Parkinson and Movement Disorder Society

 

Clinical Neurophysiology Study Group

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Have questions? Contact the group's MDS Staff Liaison, Eric Johnson II at ejohnson@movementdisorders.org

Study Group Goals

  • Improve Education and Training on Clinical Neurophysiology (CNP) in Movement disorders.
  • Develop consensus-based recommendations and standardization of CNP techniques for performance of clinical diagnostic tests
  • Develop standardized tools for analysis and interpretation of CNP tests in movement disorders.

A meeting of the MDS Clinical Neurophysiology Study Group during the 2024 MDS International Congress.

Leadership

 


Francesca Morgante
Chair

Shabbir Merchant
Shabbir Merchant
Chair

Steering Committee

Kai-Hsiang Chen
Robert Chen
Marina De Koning-Tijssen
Daniel Gams Massi
Mark Hallett
Ritsuko Hanajima
Panagiotis Kassavetis

Anna Latorre
Karlo Lizarraga
Pramod Pal
Pattamon Panyakaew
Nicolas Phielipp
Petra Schwingenschuh
Aasef Shaikh
Felipe Vial Undurraga

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Published Papers

Speech and Deep Brain Stimulation in Parkinson's Disease, Essential Tremor, and Dystonia: A Systematic Review and Meta-analysis

MDS Global Survey on Work Environment, Career Advancement, and Work-Life Balance in Movement Disorders Professionals: Gender and Regional Patterns

Clinical Outcome Assessments for Functional Performance in Spastic Paresis: Systematic Review, Critique, and Recommendations

International Parkinson and Movement Disorder Society Clinical Outcome Assessments are Available in REDCap

MDSGene Systematic Review of Common Forms of Dominant Hereditary Spastic Paraplegia: Novel Insights

Update on Medical Treatments for Essential Tremor: An International Parkinson and Movement Disorder Society Evidence-Based Medicine Review

International Registry of NKX2-1-Related Disorders: Clinical, Genetic, and Imaging Perspectives

MDS PD e-Diary: A New Patient-Centered Digital Tool in Development for People with Parkinson's Disease

Complementary and Integrative Medicine for the Treatment of Tourette's Syndrome

‘What's in a Name?’ Naming Genetically Determined Movement Disorders: Gap and Controversy

Clinical and Radiological Evolution of Idiopathic Normal Pressure Hydrocephalus: A Critical Review

Assessing Digital Health Technologies for Outcome Measurement in Parkinson's Disease Drug Trials: A Systematic Review

Clinical Outcome Assessments in Parkinson's Disease: A Scoping Review of Current Rating Scales and Future Needs

Longitudinal Evaluation of an Abbreviated Patient-Reported Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) for Predicting Dopaminergic Therapy Initiation in Early Parkinson's Disease

RAB32-Linked Parkinson's Disease: Deep Phenotyping, MDSGene Literature Review, and Application of SynNeurGe Criteria

A Holistic Wellness Prescription for Parkinson's Disease: Evidence-Based Perspectives and Unmet Needs

Current Perspectives and Practices in Infection-Related Movement Disorders (IRMD): Insights from a Survey of Members of the International Parkinson and Movement Disorder Society

Progressive Supranuclear Palsy—A Global Review

The Management of Parkinson's Disease Before, During and After Pregnancy — an MDS Scientific Issues Committee Review

Validation of the Polish version of the Movement Disorder Society Non-motor Rating Scale (MDS-NMS)

Attention/Working Memory and Executive Function in Parkinson's Disease: Review, Critique, and Recommendations

Unravelling the Global Tapestry of Genetic Ataxias: Epidemiology and Genetic Testing Approaches

How Do I Diagnose Multiple System Atrophy — A Videolibrary on Clinical and Imaging Features

Neurophysiology of Atypical Parkinsonian Syndromes: A Study Group Position Paper

Definition and Classification of Dystonia

Tic-Talk: Voices on Tourette's Labelling

Diagnostic Work Up When Suspecting Early Onset Parkinson Disease (EOPD)

Genotype-Phenotype Relations for the Dystonia-Parkinsonism Genes GLB1, SLC6A3, SLC30A10, SLC39A14, and PLA2G6: MDSGene Systematic Review

Tuberculosis Related Movement Disorders: A Systematic Scoping Review Highlighting Geographic Disparities, Phenotypic Patterns, Treatment Responses, and Knowledge Gaps in Global Reporting

Validation of the International Parkinson and Movement Disorder Society Non-Motor Symptoms Questionnaire (MDS-NMS-Q)

Neuropsychological Tests of Memory, Visuospatial, and Language Function in Parkinson's Disease: Review, Critique, and Recommendations

Update on Treatments for Parkinson's Disease Motor Fluctuations – An International Parkinson and Movement Disorder Society Evidence-Based Medicine Review

Tic Disorders Care Gaps in Spanish-Speaking Latin America

Updated MDSGene Review on the Clinical and Genetic Spectrum of LRRK2 Variants in Parkinson's Disease

Classification and Genotype-Phenotype Relationships of GBA1 Variants: MDSGene Systematic Review

Movement Disorders after Dengue Virus Infection: A Scoping Review

Standardizing the Large-Volume "Tap Test" for Evaluating Idiopathic Normal Pressure Hydrocephalus: A Systematic Review

Diagnostic Utility of Clinical Neurophysiology in Jerky Movement Disorders: A Review from the MDS Clinical Neurophysiology Study Group

A Call for Change: Updating the Operational Definition for Dementia in Parkinson's Disease

Clinical Outcome Assessments for Spasticity: Review, Critique, and Recommendations

Environmental Risk Factors for Parkinson's Disease: A Critical Review and Policy Implications

Clinical Neurophysiology for Tremor: Common Questions in Clinical Practice

Spastic Paresis: A Treatable Movement Disorder

In-Home Remote Assessment of the MDS-UPDRS Part III: Multi-Cultural Development and Validation of a Guide for Patients

Responsive Deep Brain Stimulation: A New Hope for Controlling Stimulation-Induced Dysarthria in Essential Tremor

Movement Disorders Society Viewpoint on Biological Frameworks of Parkinson's Disease: Current Status and Future Directions

Houston, We Have AI Problem! Quality Issues with Neuroimaging-Based Artificial Intelligence in Parkinson's Disease: A Systematic Review

Research Priorities on the Role of α-Synuclein in Parkinson's Disease Pathogenesis

Diagnostic Criteria for Primary Tic Disorders: Time for Reappraisal

Unmet Need in Early-Onset Parkinson's Disease: Deep Brain Stimulation and Pregnancy

Movement Disorders in Patients with Subacute Sclerosing Panencephalitis: A Systematic Review

Genome Sequence Analyses Identify Novel Risk Loci for Multiple System Atrophy

Definition, diagnosis and classification of infection-related movement disorders: Consensus proposal

Basic Science in Movement Disorders: Fueling the Engine of Translation into Clinical Practice

The role of genetics in the treatment of dystonia with deep brain stimulation: Systematic review and Meta-analysis

ANO10-Related Spinocerebellar Ataxia: MDSGene Systematic Literature Review and a Romani Case Series

Global Perceptions and Utilization of Clinical Neurophysiology in Movement Disorders

Current opinions and practices in post-stroke movement disorders: Survey of movement disorders society members

Imaging Biomarkers in Prodromal and Earliest Phases of Parkinson's Disease[1]

Transitioning from Subtyping to Precision Medicine in Parkinson's Disease: A Purpose-Driven Approach

A Statement of the MDS on Biological Definition, Staging, and Classification of Parkinson’s Disease

Covering Basic Needs on Molecular Imaging

Predictors and Pathophysiology of Axial Postural Abnormalities in Parkinsonism: A Scoping Review

A review of movement disorders in persons living with HIV

Genetic Testing in Parkinson's Disease

International Genetic Testing and Counseling Practices for Parkinson's Disease

Defining the Riddle in Order to Solve It: There Is More Than One “Parkinson's Disease”

A Unified Framework for Evidence-Based Diagnostic Criteria Programs in Movement Disorders

Scales for Antipsychotic-Associated Movement Disorders: Systematic Review, Critique, and Recommendations

COVID19-associated new-onset movement disorders: a follow-up study

Transitional Care for Young People with Movement Disorders: Consensus-Based Recommendations from the MDS Task Force on Pediatrics

Gastrointestinal barriers to levodopa transport and absorption in Parkinson's disease

Clinical Features of Idiopathic Normal Pressure Hydrocephalus: Critical Review of Objective Finding

Telemedicine ready or not? A cross-sectional assessment of telemedicine maturity of federally funded tertiary health institutions in Nigeria

Using Movement Disorder Society Unified Parkinson's Disease Rating Scale Parts 2 and 3 Simultaneously: Combining the Patient Voice with Clinician Ratings

Expanded and Independent Spanish validation of the MDS- Non Motor Rating Scale

The Unified Multiple System Atrophy Rating Scale: Status, Critique, and Recommendations

Comparative Effectiveness of Device-Aided Therapies on Quality of Life and Off-Time in Advanced Parkinson's Disease: A Systematic Review and Bayesian Network Meta-analysis

Telemedicine in the Management of Parkinson's Disease: Achievements, Challenges, and Future Perspectives

It Is as It Was: MDS-UPDRS Part III Scores Cannot Be Combined with Other Parts to Give a Valid Sum

Effects of Levodopa-Carbidopa Intestinal Gel Compared with Optimized Medical Treatment on Nonmotor Symptoms in Advanced Parkinson's Disease: INSIGHTS Study

18F-PI-2620 Tau PET Improves the Imaging Diagnosis of Progressive Supranuclear Palsy

Measurement Properties of Clinical Scales Rating the Severity of Blepharospasm: A Multicenter Observational Study

Why do 'OFF' periods still occur during continuous drug delivery in Parkinson's disease?

Rating Scales for Medication Adherence in Parkinson's Disease: A Systematic Review for Critique and Recommendations

Gaps, Controversies, and Proposed Roadmap for Research in Poststroke Movement Disorders

Movement Disorder Society Unified Parkinson's Disease Rating Scale Motor Examination Retains Its 2-Domain Profile in Both On and Off States

Patient-Reported Symptoms in the Global Multiple System Atrophy Registry

Movement disorders in COVID-19 times: impact on care in movement disorders and Parkinson disease

Measurement Properties of Clinical Scales Rating the Severity of Blepharospasm: A Multicenter Observational Study

Movement Disorder Society Unified Parkinson's Disease Rating Scale Motor Examination Retains Its 2-Domain Profile in Both On and Off States

Age Cutoff for Early-Onset Parkinson's Disease: Recommendations from the International Parkinson and Movement Disorder Society Task Force on Early Onset Parkinson's Disease

Long-Duration Progressive Supranuclear Palsy: Clinical Course and Pathological Underpinnings

Spotlight on non-motor symptoms and Covid-19

Recommendations for Virtual Administration of the PSP Rating Scale

Resolving Missing Data from the Movement Disorder Society Unified Parkinson's Disease Rating Scale: Implications for Telemedicine

EAN/MDS Guideline on the Treatment of Parkinson's Disease: I. Invasive Therapies

The Movement Disorder Society Criteria for the Diagnosis of Multiple System Atrophy

Are Virtual Objective Assessments of Fall-Risk Feasible and Safe for People with Parkinson's Disease?

Validation of the Thai Version of the Movement Disorder Society-Sponsored Revision

Surveying Global Availability of Parkinson's Disease Treatment

Crossing the Virtual Chasm: Practical Considerations for Rethinking Curriculum, Competency, and Culture in the Virtual Care Era

Virtual exam for Parkinson's disease enables frequent and reliable remote measurements of motor function

Nomenclature of Genetic Movement Disorders: Recommendations of the International Parkinson and Movement Disorder Society Task Force – An Update

Does Ethnicity Influence Recruitment into Clinical Trials of Parkinson's Disease?

A Modified Progressive Supranuclear Palsy Rating Scale for Virtual Assessments

Remote measurement and home monitoring of tremor

Task Force Consensus on Nosology and Cut-Off Values for Axial Postural Abnormalities in Parkinsonism

Papers

Research Priorities for Gait and Balance Disturbances in Parkinson’s Disease

Wellness, sexual health, and nonmotor Parkinson's

Tau deposition patterns are associated with functional connectivity in primary tauopathies

Necessity and feasibility of remote tele-programming of deep brain stimulation systems in Parkinson's disease

Provider Experience with Teleneurology in an Academic Neurology Department

Validation of the Arabic Version of the Movement Disorder Society-Unified Parkinson's Disease Rating Scale

Addressing the challenges of clinical research for freezing of gait in Parkinson’s disease

Discussion of Research Priorities for Gait Disorders in Parkinson’s Disease

An Evidence-Based Review on Treatments for Huntington's Disease

The Movement Disorders task force review of dysautonomia rating scales in Parkinson’s disease with regard to symptoms of orthostatic hypotension

Health-related quality-of-life scales in Parkinson’s disease: Critique and recommendations

Relationship of Genotype, Phenotype, and Treatment in Dopa-Responsive Dystonia: MDSGene

Access and attitudes toward palliative care among Movement Disorders clinicians

Genotype-phenotype relations in primary familial brain calcification (PFBC)

Validation of the Finnish Version of the Unified Dyskinesia Rating Scale

Worldwide barriers to genetic testing for movement disorders

Parkinson's Disease Subtypes: Critical Appraisal and Recommendations

Genotype–Phenotype Relations for the Atypical Parkinsonism Genes: MDSGene Systematic Review

Genotype-phenotype relations for isolated dystonia genes: MDSGene systematic review

Transitional care for young people with neurological disorders: A scoping review with a focus on patients with movement disorders

The Impact of COVID‐19 on Access to Parkinson's Disease Medication

Deep Brain Stimulation Impact on Social and Occupational Functioning in Parkinson's Disease with Early Motor Complications

Review of Hereditary and Acquired Rare Choreas

Reduced oligodendrocyte exosome secretion in multiple system atrophy involves SNARE dysfunction

The Progressive Supranuclear Palsy Clinical Deficits Scale

Validation of the Movement Disorder Society Criteria for the Diagnosis of 4‐Repeat Tauopathies

Update of the MDS research criteria for prodromal Parkinson's disease

Movement Disorder Society Task Force Viewpoint: Huntington's Disease Diagnostic Categories

Update on Treatments for Nonmotor Symptoms of Parkinson’s Disease—An Evidence-Based Medicine Review

How to apply the Movement Disorder Society criteria for diagnosis of progressive supranuclear palsy

A roadmap for implementation of patient‐centered digital outcome measures in Parkinson's disease obtained using mobile health technologies

Scales to assess impulsive and compulsive behaviors in Parkinson's disease: Critique and recommendations

Nomenclature of Genetically Determined Myoclonus Syndromes: Recommendations of the International Parkinson and Movement Disorder Society Task Force

Dysautonomia rating scales in Parkinson’s disease: Sialorrhea, dysphagia, and constipation - Critique and recommendations by Movement Disorders task force on rating scales for Parkinson’s disease

Pilot Study of the International Parkinson and Movement Disorder Society‐sponsored Non‐motor Rating Scale (MDS‐NMS)

The Parkinson's disease e‐diary: Developing a clinical and research tool for the digital age

Risk of Parkinson's disease dementia related to level I MDS PD‐MCI

MDSGene: Closing Data Gaps in Genotype-Phenotype Correlations of Monogenic Parkinson's Disease

Imaging markers of progression in Parkinson's disease

Detecting mild cognitive deficits in Parkinson's disease: Comparison of neuropsychological tests

Genotype-phenotype relations for the Parkinson's disease genes SNCA, LRRK2, VPS35: MDSGene systematic review

Apathy and anhedonia rating scales in Parkinson’s disease: Critique and recommendations

Clinical rating scales for urinary symptoms in Parkinson disease: Critique and recommendations

Missing data in the Unified Dyskinesia Rating Scale (UDysRS)

Current Concepts in Diagnosis and Treatment of Functional Neurological Disorders

Huntington's disease-like disorders in Latin America and the Caribbean

Non-motor outcomes of subthalamic stimulation in Parkinson's disease depend on location of active contacts

Short-term quality of life after subthalamic stimulation depends on non-motor symptoms in Parkinson's disease

Rating Scales and Performance-based Measures for Assessment of Functional Ability in Huntington's Disease: Critique and Recommendations

The genetic nomenclature of recessive cerebellar ataxias

Treatment of restless legs syndrome: Evidence-based review and implications for clinical practice (Revised 2017)

MDS evidence-based review of treatments for essential tremor

Quality of life in Huntington's disease: Critique and recommendations for measures assessing patient health‐related quality of life and caregiver quality of life

Genotype‐phenotype relations for the Parkinson's disease genes Parkin, PINK1, DJ1: MDSGene systematic review

Nonmotor symptoms evolution during 24 months of bilateral subthalamic stimulation in Parkinson's disease

International Parkinson and movement disorder society evidence-based medicine review: Update on treatments for the motor symptoms of Parkinson's disease

Rating scales for motor symptoms and signs in Huntington's disease: Critique and recommendations

Global scales for cognitive screening in Parkinson's disease: Critique and recommendations

Rating scales for cognition in Huntington's disease: Critique and recommendations

Consensus Statement on the classification of tremors: From the task force on tremor of the International Parkinson and Movement Disorder Society

Treatable inherited rare movement disorders

Quality of life outcome after subthalamic stimulation in Parkinson's disease depends on age

Disability rating scales in Parkinson's disease: Critique and recommendations

Clinical diagnostic criteria for dementia associated with Parkinson's disease

Merging clinical and imaging biomarkers to tackle Parkinson's disease

Mild cognitive impairment as a risk factor for Parkinson's disease dementia

Advances in progressive supranuclear palsy: New diagnostic criteria, biomarkers, and therapeutic approaches

Which ante-mortem features predict progressive supranuclear palsy?

Radiological biomarkers for diagnosis in PSP: Where are we and where do we need to be?

Clinical diagnosis of progressive supranuclear palsy: The Movement Disorder Society criteria

Nomenclature of genetic movement disorders: Recommendations of the International Parkinson and Movement Disorder Society task force

Systematic review of severity scales and screening instruments for tics: Critique and recommendations

Rating scales for pain in Parkinson's disease: Critique and recommendations

Rating scales for behavioral symptoms in Huntington's disease: Critique and recommendations

Reply letter to Jinnah “Locus pocus” and Albanese “Complex dystonia is not a category in the new 2013 consensus classification”: Necessary evolution, no magic!

Technology in Parkinson's disease: Challenges and opportunities

Measurement instruments to assess posture, gait, and balance in Parkinson's disease: Critique and recommendations

Guidelines for the diagnosis and treatment of primary (idiopathic) dystonia

Launching the movement disorders society genetic mutation database (MDSGene)

α-synuclein genetic variability: a biomarker for dementia in Parkinson’s disease

MDS research criteria for prodromal Parkinson's disease

MDS clinical diagnostic criteria for Parkinson's disease

Proposing a Parkinson's disease-specific tremor scale from the MDS‐UPDRS

Scales to assess clinical features of progressive supranuclear palsy: MDS Task Force report

Diagnosing PD‐MCI by MDS task force criteria: How many and which neuropsychological tests?

Review of severity rating scales for the Restless Legs Syndrome: Critique and recommendations

Review of quality of life instruments for the Restless Legs Syndrome/Willis-Ekbom disease (RLS/WED)

Review of diagnostic instruments for the Restless Legs Syndrome/Willis-Ekbom disease (RLS/WED): Critique and recommendations

Diagnostic criteria for Huntington’s disease based on natural history

Huntington's disease: Natural history, biomarkers and prospects for therapeutics

Time to redefine PD? Introductory statement of the MDS Task Force on the definition of Parkinson's

Measurement of costs and scales for outcome evaluation in health economic studies of Parkinson's disease

Parkinson's disease mild cognitive impairment: Application and validation of the criteria

Task force report: Scales for screening and evaluating tremor: Critique and recommendations

Dystonia rating scales: Critique and recommendations

Fixing the broken system of genetic locus symbols: Parkinson disease and dystonia as examples

Diagnostic criteria for mild cognitive impairment in Parkinson's disease: Movement Disorder Society task force guidelines

Wearing-off scales in Parkinson’s disease: Critique and recommendations

Scales to assess sleep impairment in Parkinson’s disease: Critique and recommendations

Task force report on scales to assess dyskinesia in Parkinson's disease: Critique and recommendations

Fatigue rating scales: Critique and recommendations by the Movement Disorder Society task force on rating scales for Parkinson’s disease

Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS): Scale presentation and clinimetric testing results

Anxiety rating scales in Parkinson’s disease: Critique and recommendations

Scales to assess psychosis in Parkinson’s disease: Critiques and recommendations

Diagnostic procedures for Parkinson's disease dementia: Recommendations from the Movement Disorder Society task force

Depression rating scales in Parkinson’s disease: Critique and recommendations

Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS): Process, format and clinimetric testing plan

Movement Disorder Society Task Force report on the Hoehn and Yahr staging scale: Status and recommendations

The Unified Parkinson’s Disease Rating Scale (UPDRS): Status and recommendations


Features 

Articles and stories about the group. 
 

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New research delves into the phenomenology of tremor

March 2025

Paper provides an evidence-based background on the different tremor types and discusses neurophysiological approaches.

 

 

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