// High-Frequency Vibration as a Vestibular Stimulus: From Jerk-Rich Physiology to Clinical Applications
研究建構工程化框架：jerk隨ω^3增長，60–100 Hz的骨傳導震動(BCV)以快速瞬變為主，Type I毛細胞、calyx及不規則傳入纖維相位鎖定，優先活化oVEMP/cVEMP/SVIN｜臨床上應將BCV視為受耳石(otolith)力學塑形的短時瞬變，而非純高頻旋轉，能解釋單側缺損、梅尼埃病與第三窗症候群的放大或異常震動反應，並有助於檢測判讀與診斷優化
// This narrative review develops an engineering-informed framework linking jerk-rich high-frequency bone-conducted vibration (BCV) to otolithic biomechanics and vestibular signal processing by combining mechanical analysis (displacement/velocity/acceleration/jerk scaling), vestibular physiology, and clinical/experimental data. Mechanical scaling shows jerk rises with ω^3, so at 60–100 Hz stimuli are dominated by rapid transients rather than steady rotation. Type I hair cells, calyx endings and irregular afferents form a high-bandwidth, transient pathway that phase-locks to these jerky stimuli, meaning BCV and high-frequency sound preferentially activate irregular otolithic and canal afferents and drive oVEMPs, cVEMPs and SVIN. Clinically, BCV should be treated as a rapid transient shaped by otolithic mechanics—not simply very high-frequency rotation—which helps explain abnormal or exaggerated vibratory responses in disorders like unilateral loss, Ménière’s disease and third-window syndromes and can improve test interpretation.
Published 2026年9月5日
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