ArticleJournal of neurophysiology2018
Sensorimotor control of the trunk in sitting sway referencing.
Article in Journal of neurophysiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Identification Method for Seated Balance Control Based on Horizontal Support-Surface Sway and Dual Force-Platform Measurements.Sensors (Basel, Switzerland) · 2026Article
- Vestibular Precision at the Level of Perception, Eye Movements, Posture, and Neurons.Neuroscience · 2021Review
- Postural mechanisms in moderate-to-severe cerebral palsy.Journal of neurophysiology · 2021Article
- The role of vestibular cues in postural sway.Journal of neurophysiology · 2021Article
- Human manual control precision depends on vestibular sensory precision and gravitational magnitude.Journal of neurophysiology · 2018Article
- Two-segment aging of vestibular perceptual thresholds: motion-specific links to quiet-stance postural sway.Frontiers in neurologyArticle
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Authors and funding
6 authors.
Funding
Abstract
We developed a sway-referenced system for sitting to highlight the role of vestibular and visual contributions to trunk control. Motor control was investigated by measuring trunk kinematics in the frontal plane while manipulating visual availability and introducing a concurrent cognitive task. We examined motor learning on three timescales (within the same trial, minutes), within the same test session (1 h), and between sessions (1 wk). Posture sway was analyzed through time-based measures [root mean square (RMS) sway and RMS velocity], frequency-based measures (amplitude spectra), and parameterized feedback modeling. We found that posture differed in both magnitude and frequency distribution during sway referencing compared with quiet sitting. Modeling indicated that sway referencing caused greater uncertainty/noise in sensory feedback and motor outputs. Sway referencing was also associated with lower active stiffness and damping model parameters. The influence of vision and a cognitive task was more apparent during sway referencing compared with quiet sitting. Short-term learning was reflected by reduced RMS velocity in quiet sitting immediately following sway referencing. Longer term learning was evident from one week to the next, with a 23% decrease in RMS sway and 9% decrease in RMS velocity. These changes occurred predominantly during cognitive tests at lower frequencies and were associated with lower sensory noise and higher stiffness and integral gains in the model. With the findings taken together, the sitting sway-referenced test elicited neural changes consistent with optimal integration and sensory reweighting, similar to standing, and should be a valuable tool to closely examine sensorimotor control of the trunk. NEW & NOTEWORTHY We developed the first sway-referenced system for sitting to highlight the role of vestibular and visual contributions to trunk control. A parametric feedback model explained sensorimotor control and motor learning in the task with and between two test sessions. The sitting sway-referenced test elicited neural changes consistent with optimal integration and sensory reweighting, similar to standing, and should be a valuable tool to closely examine sensorimotor control of the trunk.
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