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Peripheral Vestibular
Left-beating peripheral spontaneous nystagmus
Right peripheral vestibular hypofunction
Live animation
Fast-phase: ← left-beating horizontal · ↺ left-torsional (CCW)
Gaze directionprimary
← 40° LEFTPRIMARY40° RIGHT →
Slide to test Alexander's law (peripheral), gaze-evoked patterns, or the null zone (congenital).
Position-over-time tracing
Live strip-chart. Horizontal, vertical, and torsional channels.
In a sentence
Mirror of the right-beating variant. Beats AWAY from the affected (right) ear; suppressed by fixation.
Clinical pearls
- ◆Head impulse test abnormal toward the right.
- ◆Intensity ↑ on leftward gaze (Alexander's law).
Common associations
- Right vestibular neuritis
- Right labyrinthitis
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