Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Functional visual loss: a systematic review and meta-analysis of epidemiology, prognosis and treatment.

Eye (London, England)·2026
Same author

ON/OFF Phenomenon in 4-Aminopyridine Therapy in Spinocerebellar Ataxia 27B: Therapeutic and Diagnostic Insights.

Movement disorders clinical practice·2026
Same author

Pain in Functional Motor Disorders: Clinical Correlates From the Italian Registry.

European journal of neurology·2026
Same author

High Prevalence and Clinical Impact of Fibromyalgia in Functional Motor Disorder.

Movement disorders clinical practice·2026
Same author

Identifying diagnostic biomarkers in functional motor disorders through multimodal behavioral, neurophysiological, and imaging assessment using explainable machine learning.

Journal of neurology·2026
Same author

DASH diet, Reduced Rank Regression Dietary Patterns and relations with kidney function in the CHRIS general population study.

BMC nephrology·2026

Related Experiment Video

Updated: Aug 13, 2025

Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography
04:06

Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography

Published on: January 12, 2024

688

Performance validity tests in nonlitigant patients with functional motor disorder.

Ilaria A Di Vico1,2, Jon Stone3, Laura Mcwhirter3

  • 1Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Verona, Italy.

European Journal of Neurology
|January 24, 2023
PubMed
Summary

Performance validity tests (PVTs) showed low failure rates in functional motor disorder (FMD) patients, comparable to healthy controls. This suggests PVTs can reliably assess FMD patients, differentiating them from simulators.

Keywords:
functional neurological disordersneuropsychological assessmentperformance validity tests

More Related Videos

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients
07:42

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Published on: December 16, 2022

3.0K
Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
10:28

Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease

Published on: July 24, 2019

15.3K

Related Experiment Videos

Last Updated: Aug 13, 2025

Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography
04:06

Author Spotlight: Enhancing Remote Rehabilitation with Virtual Reality and Electromyography

Published on: January 12, 2024

688
Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients
07:42

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Published on: December 16, 2022

3.0K
Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
10:28

Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease

Published on: July 24, 2019

15.3K

Area of Science:

  • Neuropsychology
  • Neurology
  • Psychological Assessment

Background:

  • Performance validity tests (PVTs) are crucial in neuropsychological assessments to ensure evaluation accuracy.
  • Data regarding performance validity in functional motor disorder (FMD) is limited and inconsistent.
  • This study addresses the need for clarity on PVT performance in non-litigant FMD patients.

Purpose of the Study:

  • To determine the failure rates of three PVTs in non-litigant, non-compensation-seeking FMD patients.
  • To compare FMD patients' PVT performance against healthy controls and healthy simulators.
  • To assess the clinical utility of PVTs for FMD evaluations.

Main Methods:

  • Enrolled 29 FMD patients, 29 healthy controls, and 29 healthy simulators.
  • Administered three PVTs: Coin in the Hand Test (CIH), Rey 15-Item Test (REY), and Finger Tapping Test (FTT).
  • Analyzed failure rates and compared performance across groups.

Main Results:

  • FMD patients exhibited low failure rates: 7% on CIH, 10% on REY, and 15% on FTT.
  • FMD patients' performance was statistically similar to healthy controls.
  • FMD patients' performance significantly differed from healthy simulators (p < 0.001).

Conclusions:

  • PVT performance in FMD patients ranged from 7% to 15% failure.
  • The findings support the validity of PVT use in FMD assessments.
  • A simple battery of three PVTs is proposed for routine clinical use in FMD evaluations.