A recent study sought to determine clinical, oculographic, and vestibular test characteristics of vestibular migraine. “Vestibular migraine is characterised by low velocity ictal spontaneous nystagmus, which can be horizontal, vertical, or torsional, and normal audiovestibular test results,” the researchers wrote in their conclusion.

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https://journals.sagepub.com/doi/10.1177/03331024211006042