Relation between Temporary Threshold Shift and Peripheral Circulatory Effects of Sound

It has long been known that there are relations between hearing and the function of various organs of the human body (1, 2, 4, 9, 10). Lawrence (8) discussed the possibilities of inducing temporary threshold shift (TTS). His results show that TTS occurs not only with noise but also with changes in the nervous processes within the cochlear nerve that are influenced by other factors than noise. From other authors, too, we know relationships between the hearing organ and some other extraaural functions. But when looking up the literature for quantitative relations of TTS and certain physiological functions we failed in finding exact results.