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LXXVII. Evaluation of the Caloric and Rotation Tests

When asking me to deliver a paper on the "Evaluation of the Caloric and Rotation Tests," the committee wrote that "the time had come when this subject could be profitably considered in the light of experiences we had gained since the tests were first devised." I agree with the committee quite heartily. The clinical importance and scope of these tests have undergone such wide changes and such rapid growth since their inception that I feel it would serve the interests of clarity to halt for a moment, in order that we may sift the massive amount of work done and separate the chaff from the wheat. When Robert Barany first published a description of the phenomena which resulted from caloric stimulation of the ear, he was hailed by the otologic world as an epoch making discoverer. The caloric test furnished the otologists at last with a true and reliable means of determining the viability of the inner ear and so solved many a vexing problem, especially in those cases where surgical drainage of the labyrinth was contemplated. For a number of years this very important determination was the sole func-