Three tests for the determination of caloric nystagmus response abnormalities have been developed, based upon analysis of intrasubject normal responses, obtained by using a statistical model that provided an exact fit with clinical procedures. Normal Emits derived from interaural, stimulus temperature, and nystagmus direction responses should provide a more sensitive index of abnormality than limits based on percentage based response criteria. A retrospective examination of caloric responses from Ménière's disease patients provided preliminary support for clinical feasibility and increased sensitivity of the statistical methods advocated for clinical usage.
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