The validity of the derived cochlear nerve and brainstem evoked responses of the human auditory system

It was considered that for a number of reasons, the derived response concept might not necessarily be valid when applied to the cochlear nerve and brainstem evoked responses (CBER). A statistical comparison of response measures of amplitude and latency was made between derived and non-derived responses, each representing response contributions initiated by the same locations along the cochlear partition. Relatively few statistical differences were detected. Therefore the technique of waveform summation and the production of derived response waveforms from complex responses, recorded under appropriate masking conditions, was considered to be a valid operation.