Understanding the Role of Variability in Motor Control and Learning: Towards an Accessible Protocol for Analysis.

The scientific literature highlights the significance of human motor variability in understanding motor control, learning, and neurological disorders. Visuomotor tasks in laboratory settings offer a controlled platform for studying motor variability, but the specialized equipment used for these task...

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Published in:Perceptual & Motor Skills Vol. 133; no. 3; pp. 661 - 680
Main Authors: Caballero, Carla, Barbado, David, Rodríguez, Óscar, Moreno, Francisco J.
Format: Article
Published: Sage Publications Inc. Jun2026
Subjects:
Online Access:View this record in EBSCOhost
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      dt: Jun2026
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          Caballero, Carla
          Barbado, David
          Rodríguez, Óscar
          Moreno, Francisco J.
        affil:
          Department of Sport Sciences, Sports Research Centre, Miguel Hernandez University of Elche, Elche, Spain
          Neurosciences Research Group, Alicante Institute for Health and Biomedical Research (ISABIAL), Alicante, Spain
      su:
        Spain
        Motor ability
        Cross-sectional method
        Task performance
        Home environment
        Analysis of variance
        Medical protocols
        In vitro studies
        Repeated measures design
        Pearson correlation (Statistics)
        T-test (Statistics)
        Data analysis
        Research funding
        Time series analysis
        Descriptive statistics
        Psychology of movement
        Mice (Computers)
        Statistical reliability
        Statistics
        Intraclass correlation
        Comparative studies
        Data analysis software
        Home rehabilitation
      sug:
        subj:
          Motor ability
          Cross-sectional method
          Task performance
          Home environment
          Analysis of variance
          Spain
          Computer and peripheral equipment manufacturing
          Computer Terminal and Other Computer Peripheral Equipment Manufacturing
          Medical protocols
          In vitro studies
          Repeated measures design
          Pearson correlation (Statistics)
          T-test (Statistics)
          Data analysis
          Research funding
          Time series analysis
          Descriptive statistics
          Psychology of movement
          Mice (Computers)
          Statistical reliability
          Statistics
          Intraclass correlation
          Comparative studies
          Data analysis software
          Home rehabilitation
      keyword:
        motor variability assessment
        moused-based task
        reliability
        robustness
        motor variability assessment
        moused-based task
        reliability
        robustness
      ab: The scientific literature highlights the significance of human motor variability in understanding motor control, learning, and neurological disorders. Visuomotor tasks in laboratory settings offer a controlled platform for studying motor variability, but the specialized equipment used for these tasks limits their accessibility and generalizability. Thus, this study aimed to develop an accessible, standardized mouse-based task for home-based assessment of motor variability characteristics. Two protocols were conducted: (1) comparing the mouse-based task to a well-established force-sensor lab task (N = 10), and (2) assessing the mouse-based task across various computer setups (N = 31). Results demonstrated high reliability and accuracy of both tasks for the following measures of motor variability: fuzzy entropy and detrended fluctuation analysis (DFA). The mouse-based task exhibited slightly superior absolute reliability, suggesting potential sensitivity advantages for detecting longitudinal changes in motor control. While sampling frequency influenced nonlinear outputs, it did not significantly affect reliability, leading to the choice of 20 Hz for optimal parameter estimation. Correlation analyses revealed that although participants showed different performance during the mouse- and force-sensor-based tasks, their long-term movement adjustment strategies (assessed using the DFA) were similar. In addition, the robustness analysis showed that computer hardware can influence observed variability, with screen size being a key factor. Larger screens may increase error sensitivity and affect variability structure. Overall, the findings highlight the potential of the mouse-based task for home-based motor variability assessment, emphasizing its reliability, accuracy, and adaptability across various computer setups.
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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