Extratympanic manometry in man. Clinical and experimental investigations of the acoustic stapedius and tensor tympani contractions in normal subjects and in patients.

New ideas and inspirations for future human investigations have emerged from the experience obtained in this study. These investigations ought to be performed for both scientific and clinical reasons. It is the author's opinion that the ETM method is extremely useful and valuable. The author intends to continue the human investigations if proper conditions are available. The ETM equipment can also be further improved for scientific and special clinical investigations. For normal clinical practice a more "simplified" ETM equipment should be developed. Clinical investigations concerning the diagnosis of brain stem disorders and the selection of noise susceptible persons will be two of the primary clinical tasks.