Related Experiment Videos
Rating scale for psychogenic movement disorders: scale development and clinimetric testing
Vanessa K Hinson1, Esther Cubo, Cynthia L Comella
1Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina, USA. hinsonvk@musc.edu
Summary
A new scale effectively assesses psychogenic movement disorders (PMDs), rating phenomena, function, and body regions. This reliable tool aids in evaluating PMD severity and treatment effectiveness.
Area of Science:
- Neurology
- Clinical Assessment
- Psychiatry
Background:
- Psychogenic movement disorders (PMDs) are disabling conditions lacking standardized assessment tools.
- Effective treatment development for PMDs requires reliable methods to measure disease severity.
- No established scale previously existed for evaluating PMDs.
Purpose of the Study:
- To develop and validate a clinimetric scale for assessing psychogenic movement disorders (PMDs).
- To provide a tool for measuring PMD severity and tracking treatment efficacy.
Main Methods:
- Developed the PMD scale rating 10 phenomena, 2 functions (gait, speech), and 14 body regions.
- Assessed interrater reliability using kappa coefficients, Kendall's concordance, and Spearman correlations with 88 patient videos.
- Evaluated scale validity and responsiveness to neuropsychiatric interventions.
Main Results:
- The PMD scale captured a wide range of phenomena, functions, and affected body regions in patients.
- Demonstrated excellent interrater reliability for phenomenon presence (kappa: 0.63-0.86) and high concordance for scores (0.91-0.93).
- The scale proved responsive to changes following neuropsychiatric interventions.
Conclusions:
- The developed PMD scale reliably assesses complex movements in psychogenic movement disorders.
- This scale serves as a valuable tool for clinical assessment and evaluating intervention efficacy in PMDs.