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Updated: Jan 13, 2026

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Self-Motion Misperception Induced by Neck Muscle Fatigue.

Fabio Massimo Botti1, Marco Guardabassi1, Chiara Occhigrossi1

  • 1Department of Medicine and Surgery, Human Physiology Section, Università Degli Studi di Perugia, Piazzale Gambuli 1, 06100 Perugia, Italy.

Audiology Research
|October 28, 2025
PubMed
Summary
This summary is machine-generated.

Neck muscle fatigue disrupts self-motion perception even with combined vestibular and proprioceptive input. This leads to inaccurate spatial orientation and misperceived slow movements, posing risks in daily activities.

Keywords:
balancemotion perceptionmuscle fatigueneck muscle proprioceptionvestibular system

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Area of Science:

  • Neuroscience
  • Human Movement Science
  • Vestibular System Research

Background:

  • Cervical proprioception alterations during neck muscle fatigue impact self-motion perception.
  • Vestibular system signals remain unaffected by neck muscle fatigue in self-motion perception.
  • Natural movements integrate both proprioceptive and vestibular inputs.

Purpose of the Study:

  • Investigate if self-motion misperception persists during neck muscle fatigue when both proprioceptive and vestibular stimulation are present.
  • Determine the combined effect of neck muscle fatigue and dual sensory input on motion perception.

Main Methods:

  • Evaluated perceptual response gain to sinusoidal head rotations (yaw) during visual target localization.
  • Assessed visual target localization error after asymmetric sinusoidal head rotations with varying velocities.
  • Utilized a stationary trunk setup with visual target localization tasks.

Main Results:

  • Neck muscle fatigue reduced perceptual response gain at low frequencies with combined stimulation.
  • Increased localization error observed after asymmetric rotations, persisting even in light conditions.
  • Moderate neck muscle fatigue significantly increased self-motion misperception.

Conclusions:

  • Neck muscle fatigue impairs spatial orientation and self-motion perception, even with vestibular activation.
  • Slow movements are inaccurately perceived under neck muscle fatigue conditions.
  • Potential risks exist in daily activities requiring precise spatial perception due to neck muscle fatigue.