Synapse
⌘+K
Synapse
PulseExploreClubsResearchersJournals
Instagram
HomeClubsExplore
January 1, 2009Journal of Motor BehaviorOpen Access

Sensitivity of Smoothness Measures to Movement Duration, Amplitude, and Arrests

View Full Paper
Ask AI
Bookmark
Share

Authors

NHNeville HoganInstitute of Cognitive and Brain SciencesDSDagmar SternadNortheastern University

Discussion

Loading...

Member takes

Overview

Methodological study reveals that dimensionless jerk reliably quantifies sensory-motor coordination, indicating that dimensional measures produce misleading assessments due to duration sensitivity.

Key Points

  • To evaluate how different mathematical formulations of jerk-based smoothness measures respond to variations in movement duration, amplitude, and arrests in sensory-motor assessment.
  • Examined the mathematical properties and scaling factors of dimensional and dimensionless jerk-based metrics used to quantify motor coordination.
  • Assessed the sensitivity of each metric to changes in movement duration and amplitude.
  • Jerk-based measures that retain physical dimensions vary counterintuitively with movement smoothness due to confounding effects of movement duration and amplitude.
  • Dimensionless jerk-based measures reliably and accurately quantify deviations from smooth, coordinated sensory-motor performance across varying task scales.

Cite This Study

Hogan et al. (2009) studied this question.

synapsesocial.com/papers/69db2b6934ded318bb6849aahttps://doi.org/10.3200/35-09-004-rc
View Full Paper
Ask AI
Bookmark
Share

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Measurement properties of movement smoothness metrics for upper limb reaching movements in people with moderate to severe subacute stroke2024 · 13 citations
  2. 2Evaluating upper limb movement smoothness metrics derived from markerless 3D motion tracking in children with neurological disorders2026
  3. 3Keeping It Smooth: The Role of Haptic Feedback in Shaping Motor Performance2026
  4. 4Movement smoothness at term-equivalent age is associated with motor developmental delay in preterm infants2025
  5. 5Aesthetic judgment of apparent motion: effects of movement smoothness, synchrony, and shape2026