Abstract
Quantitative measures of the time characteristics of the headaches that have been experienced by patients with Menière's disease indicate that we are dealing with a homogeneous population of headaches. Since the majority of the patients have experienced scotomata in association with their headaches, these headaches must be of the migrainous type. Quantitative measures of the intervals separating either headaches or episodes of vertigo show the same parameters of either central tendency or dispersion. Thus there is reason to believe that there is a basically similar etiology for these two symptoms.

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