Abstract
By using a specially designed high-frequency masking technique as proposed by Teas et al. (1962) the derived AP curves from the human cochlea are established in response to our “standard” click at the intensities 95 and 75 dB p.e. SPL. The derived AP represents neural activities in response to the click used at various locations along the cochlear partition. The results support the theory that with decreasing click intensity the whole nerve AP consists of components generated more and more apically in the cochlea. Additional support is given by the results from clinical measurements of the whole nerve AP in patients with severe cochlea hearing loss. A logical interpretation of the results shows furthermore that the “N2”-component as presented in our whole nerve AP recordings consists mainly of components generated in the 1–4 kHz area of the cochlea. From the latency measurements of the individual derived AP components together with a curve which converts “frequency” into location along the basilar membrane the travelling-wave velocity in the human cochlea is calculated.