Abstract
In order to demonstrate the possibility of deriving narrowband responses, investigations using simultaneous puretone masking at frequencies of 1 and 0.5 kHz were carried out. Constant and reproducible derived responses were obtained at both masker frequencies within the following latency ranges: W6 (masker frequency 1 kHz) from 7.7 to 9.9 msec and W7 (masker frequency 0.5 kHz) from 9.2 to 11.2 msec at intensities of 70–20 dBSL. The agreement of our results with those obtained with the high-pass noise-masking technique permits us to ascribe our narrowband responses (W6, W7) to the corresponding frequency regions around 1 and 0.5 kHz along the cochlear partition. This method is suitable for deriving frequency-specific responses without any sophistication.