ArticleNeurology2016
Objective, computerized video-based rating of blepharospasm severity.
Abstract readValidation Study
In one paragraph
Article in Neurology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 23% of its field
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Computer Vision Technologies in Movement Disorders: A Systematic Review.Movement disorders clinical practice · 2025Pooled it
- An Exploratory, Randomized, Double-Blind Clinical Trial of Dipraglurant for Blepharospasm.Movement disorders : official journal of the Movement Disorder Society · 2024Trial
- Smartphone video-based early diagnosis of blepharospasm using dual cross-attention modeling enhanced by facial pose estimation.NPJ digital medicine · 2025Article
- Motor assessment of X-linked dystonia parkinsonism via machine-learning-based analysis of wearable sensor data.Scientific reports · 2024Article
- Interrater reliability of motor severity scales for hemifacial spasm.Journal of neural transmission (Vienna, Austria : 1996) · 2023Article
- Quantitative evaluation of blinking in blepharospasm using electrooculogram-integrated smart eyeglasses.Scientific reports · 2023Article
- Hold that pose: capturing cervical dystonia's head deviation severity from video.Annals of clinical and translational neurology · 2022Article
- New modalities and directions for dystonia care.Journal of neural transmission (Vienna, Austria : 1996) · 2021Review
- The Dystonia Coalition: A Multicenter Network for Clinical and Translational Studies.Frontiers in neurology · 2021Review
- Sensorimotor simulation and emotion processing: Impairing facial action increases semantic retrieval demands.Cognitive, affective & behavioral neuroscience · 2017Article
- A Dynamic Circuit Hypothesis for the Pathogenesis of Blepharospasm.Frontiers in computational neuroscience · 2017Article
- Facial artificial intelligence in ophthalmology and medicine: fundamental and transformative applications.Therapeutic advances in ophthalmologyReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 6 institutions in 2 countries.
David A PetersonFrom the Computational Neurobiology Laboratory (D.A.P., T.J.S.) and Howard Hughes Medical Institute (T.J.S.), Salk Institute for Biological Studies; Institute for Neural Computation (D.A.P., G.C.L., M.S.B., T.J.S.), Kavli Institute for Brain and Mind (D.A.P., T.J.S.), Machine Perception Laboratory (G.C.L., M.S.B.), and Division of Biological Sciences (T.J.S.), University of California, San Diego, La Jolla; Sobell Department of Motor Neuroscience and Movement Disorders (A.M.), National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, UK; Departments of Neurology, Radiology, and Anatomy and Neurobiology, and Programs in Physical Therapy and Occupational Therapy (J.S.P.), Washington University School of Medicine, St. Louis, MO; Departments of Neurology, Human Genetics, and Pediatrics (H.A.J.), Emory University, Atlanta, GA; and Human Motor Control Section (M.H.), National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD. dap@salk.edu.
Gwen C LittlewortFrom the Computational Neurobiology Laboratory (D.A.P., T.J.S.) and Howard Hughes Medical Institute (T.J.S.), Salk Institute for Biological Studies; Institute for Neural Computation (D.A.P., G.C.L., M.S.B., T.J.S.), Kavli Institute for Brain and Mind (D.A.P., T.J.S.), Machine Perception Laboratory (G.C.L., M.S.B.), and Division of Biological Sciences (T.J.S.), University of California, San Diego, La Jolla; Sobell Department of Motor Neuroscience and Movement Disorders (A.M.), National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, UK; Departments of Neurology, Radiology, and Anatomy and Neurobiology, and Programs in Physical Therapy and Occupational Therapy (J.S.P.), Washington University School of Medicine, St. Louis, MO; Departments of Neurology, Human Genetics, and Pediatrics (H.A.J.), Emory University, Atlanta, GA; and Human Motor Control Section (M.H.), National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD.
Marian S BartlettFrom the Computational Neurobiology Laboratory (D.A.P., T.J.S.) and Howard Hughes Medical Institute (T.J.S.), Salk Institute for Biological Studies; Institute for Neural Computation (D.A.P., G.C.L., M.S.B., T.J.S.), Kavli Institute for Brain and Mind (D.A.P., T.J.S.), Machine Perception Laboratory (G.C.L., M.S.B.), and Division of Biological Sciences (T.J.S.), University of California, San Diego, La Jolla; Sobell Department of Motor Neuroscience and Movement Disorders (A.M.), National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, UK; Departments of Neurology, Radiology, and Anatomy and Neurobiology, and Programs in Physical Therapy and Occupational Therapy (J.S.P.), Washington University School of Medicine, St. Louis, MO; Departments of Neurology, Human Genetics, and Pediatrics (H.A.J.), Emory University, Atlanta, GA; and Human Motor Control Section (M.H.), National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD.
Antonella MacerolloFrom the Computational Neurobiology Laboratory (D.A.P., T.J.S.) and Howard Hughes Medical Institute (T.J.S.), Salk Institute for Biological Studies; Institute for Neural Computation (D.A.P., G.C.L., M.S.B., T.J.S.), Kavli Institute for Brain and Mind (D.A.P., T.J.S.), Machine Perception Laboratory (G.C.L., M.S.B.), and Division of Biological Sciences (T.J.S.), University of California, San Diego, La Jolla; Sobell Department of Motor Neuroscience and Movement Disorders (A.M.), National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, UK; Departments of Neurology, Radiology, and Anatomy and Neurobiology, and Programs in Physical Therapy and Occupational Therapy (J.S.P.), Washington University School of Medicine, St. Louis, MO; Departments of Neurology, Human Genetics, and Pediatrics (H.A.J.), Emory University, Atlanta, GA; and Human Motor Control Section (M.H.), National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD.
Joel S PerlmutterFrom the Computational Neurobiology Laboratory (D.A.P., T.J.S.) and Howard Hughes Medical Institute (T.J.S.), Salk Institute for Biological Studies; Institute for Neural Computation (D.A.P., G.C.L., M.S.B., T.J.S.), Kavli Institute for Brain and Mind (D.A.P., T.J.S.), Machine Perception Laboratory (G.C.L., M.S.B.), and Division of Biological Sciences (T.J.S.), University of California, San Diego, La Jolla; Sobell Department of Motor Neuroscience and Movement Disorders (A.M.), National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, UK; Departments of Neurology, Radiology, and Anatomy and Neurobiology, and Programs in Physical Therapy and Occupational Therapy (J.S.P.), Washington University School of Medicine, St. Louis, MO; Departments of Neurology, Human Genetics, and Pediatrics (H.A.J.), Emory University, Atlanta, GA; and Human Motor Control Section (M.H.), National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD.
H A JinnahFrom the Computational Neurobiology Laboratory (D.A.P., T.J.S.) and Howard Hughes Medical Institute (T.J.S.), Salk Institute for Biological Studies; Institute for Neural Computation (D.A.P., G.C.L., M.S.B., T.J.S.), Kavli Institute for Brain and Mind (D.A.P., T.J.S.), Machine Perception Laboratory (G.C.L., M.S.B.), and Division of Biological Sciences (T.J.S.), University of California, San Diego, La Jolla; Sobell Department of Motor Neuroscience and Movement Disorders (A.M.), National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, UK; Departments of Neurology, Radiology, and Anatomy and Neurobiology, and Programs in Physical Therapy and Occupational Therapy (J.S.P.), Washington University School of Medicine, St. Louis, MO; Departments of Neurology, Human Genetics, and Pediatrics (H.A.J.), Emory University, Atlanta, GA; and Human Motor Control Section (M.H.), National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD.
Mark HallettFrom the Computational Neurobiology Laboratory (D.A.P., T.J.S.) and Howard Hughes Medical Institute (T.J.S.), Salk Institute for Biological Studies; Institute for Neural Computation (D.A.P., G.C.L., M.S.B., T.J.S.), Kavli Institute for Brain and Mind (D.A.P., T.J.S.), Machine Perception Laboratory (G.C.L., M.S.B.), and Division of Biological Sciences (T.J.S.), University of California, San Diego, La Jolla; Sobell Department of Motor Neuroscience and Movement Disorders (A.M.), National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, UK; Departments of Neurology, Radiology, and Anatomy and Neurobiology, and Programs in Physical Therapy and Occupational Therapy (J.S.P.), Washington University School of Medicine, St. Louis, MO; Departments of Neurology, Human Genetics, and Pediatrics (H.A.J.), Emory University, Atlanta, GA; and Human Motor Control Section (M.H.), National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD.
Terrence J SejnowskiFrom the Computational Neurobiology Laboratory (D.A.P., T.J.S.) and Howard Hughes Medical Institute (T.J.S.), Salk Institute for Biological Studies; Institute for Neural Computation (D.A.P., G.C.L., M.S.B., T.J.S.), Kavli Institute for Brain and Mind (D.A.P., T.J.S.), Machine Perception Laboratory (G.C.L., M.S.B.), and Division of Biological Sciences (T.J.S.), University of California, San Diego, La Jolla; Sobell Department of Motor Neuroscience and Movement Disorders (A.M.), National Hospital of Neurology and Neurosurgery, Institute of Neurology, University College London, UK; Departments of Neurology, Radiology, and Anatomy and Neurobiology, and Programs in Physical Therapy and Occupational Therapy (J.S.P.), Washington University School of Medicine, St. Louis, MO; Departments of Neurology, Human Genetics, and Pediatrics (H.A.J.), Emory University, Atlanta, GA; and Human Motor Control Section (M.H.), National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD.
Salk Institute for Biological Studies · USWashington University in St. Louis · USEmory University · USNational Hospital for Neurology and Neurosurgery · GBNational Institute of Neurological Disorders and Stroke · USUniversity College London · GB
Funding
Williams Syndrome: The Molecular Genetic CharacterizationP01HD033113 · NICHD · UNIVERSITY OF UTAH · PI HALGREN, ERIC · 1996 to 2015
$19.4MTrainingP41GM103712 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FAEDER, JAMES · 2012 to 2021
$16.3MINVESTIGATIONS OF DEMENTIA IN PARKINSON DISEASER01NS075321 · NINDS · WASHINGTON UNIVERSITY · PI CAMPBELL, MEGHAN C, PERLMUTTER, JOEL SYNES · 2011 to 2021
$8.2MMECHANISMS OF DEEP BRAIN STIMULATIONR01NS041509 · NINDS · WASHINGTON UNIVERSITY · PI PERLMUTTER, JOEL SYNES · 2001 to 2015
$6.8MTRAINING PROGRAM IN COGNITIVE NEUROSCIENCET32MH020002 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SEJNOWSKI, TERRENCE J · 1999 to 2020
$6.1MImaging Biomarkers of Neurotoxicity in WeldersR01ES021488 · NIEHS · WASHINGTON UNIVERSITY · PI Brad A Racette · 2013 to 2026
$5.3MPET PROBES FOR IMAGING THE VESICULAR ACETYLCHOLINE TRANSPORTERR01NS075527 · NINDS · WASHINGTON UNIVERSITY · PI TU, ZHUDE · 2011 to 2021
$4.9MVALIDATION OF NEUROIMAGING BIOMARKERS FOR NIGROSTRIATAL NEURONSR01NS058714 · NINDS · WASHINGTON UNIVERSITY · PI PERLMUTTER, JOEL SYNES · 2008 to 2016
$4.4MCRCNS: Integrated Empirical and Multiscale Modeling of Human Sleep SpindlesR01EB009282 · NIBIB · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SEJNOWSKI, TERRENCE J · 2008 to 2016
$3.7MEpigenetic Alterations of the Developing Brain in Animal Models of SchizophreniaR01MH094670 · NIMH · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI BEHRENS, M MARGARITA, ECKER, JOSEPH R · 2011 to 2015
$3.6MValidation of the HD-HRQOL (Huntington disease quality of life measure)R01NS077946 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CARLOZZI, NOELLE E. · 2012 to 2016
$3.2MDystonia CoalitionU54TR001456 · NCATS · EMORY UNIVERSITY · PI JINNAH, HYDER A · 2015 to 2016
$2.5MNCATS NIH HHS U54 TR001456NIA NIH HHS R01 AG050263NIBIB NIH HHS R01 EB009282NICHD NIH HHS P01 HD033113NIDA NIH HHS R01 DA030749NIEHS NIH HHS R01 ES021488NIGMS NIH HHS P41 GM103712NIGMS NIH HHS R01 GM086883NIMH NIH HHS R01 MH079076NIMH NIH HHS R01 MH094670NIMH NIH HHS T32 MH020002NINDS NIH HHS R01 NS041509NINDS NIH HHS R01 NS058714NINDS NIH HHS R01 NS059740NINDS NIH HHS R01 NS075321NINDS NIH HHS R01 NS075527NINDS NIH HHS R01 NS077946NINDS NIH HHS R01 NS077959NINDS NIH HHS R03 NS090214NINDS NIH HHS U10 NS077384
Abstract
objectiveTo compare clinical rating scales of blepharospasm severity with involuntary eye closures measured automatically from patient videos with contemporary facial expression software.
methodsWe evaluated video recordings of a standardized clinical examination from 50 patients with blepharospasm in the Dystonia Coalition's Natural History and Biorepository study. Eye closures were measured on a frame-by-frame basis with software known as the Computer Expression Recognition Toolbox (CERT). The proportion of eye closure time was compared with 3 commonly used clinical rating scales: the Burke-Fahn-Marsden Dystonia Rating Scale, Global Dystonia Rating Scale, and Jankovic Rating Scale.
resultsCERT was reliably able to find the face, and its eye closure measure was correlated with all of the clinical severity ratings (Spearman ρ = 0.56, 0.52, and 0.56 for the Burke-Fahn-Marsden Dystonia Rating Scale, Global Dystonia Rating Scale, and Jankovic Rating Scale, respectively, all p < 0.0001).
conclusionsThe results demonstrate that CERT has convergent validity with conventional clinical rating scales and can be used with video recordings to measure blepharospasm symptom severity automatically and objectively. Unlike EMG and kinematics, CERT requires only conventional video recordings and can therefore be more easily adopted for use in the clinic.
Indexed as
Severity of Illness IndexSoftwareAdultAgedBlepharospasmDystoniaFacial ExpressionFemaleHumansImage Interpretation, Computer-AssistedMaleMiddle AgedPattern Recognition, AutomatedVideo Recording
Identifiers
What OpenQuestion holds
Textmetadata
Read underepoch 390
Registered trials
None linked
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.