Abstract
AbstractHuman electrocochleography is reviewed and the significance of the recorded potentials is discussed with special reference to the recording site. The response amplitude and threshold values for transtympanic AP recording are compared for various recording sites. The recorded AP amplitude varies with the inverse distance to the cochlear wall, resulting in an AP threshold increase which is nearly exponential with increasing distance from the cochlea.The click and tone-burst results arc compared with respect to frequency specificity and accordance with the subjective threshold. The Leiden method combining the promontory recording with short tone-bursts as stimuli proved to permit accurate determination of threshold for frequencies of 500 Hz and upwards, and provides detailed frequency-specific supraliminal information (e.g. about recruitment).
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