TEMPORAL MASKING OF HUMAN AUDITORY-EVOKED BRAIN-STEM RESPONSES USING 2 SIMULTANEOUSLY PRESENTED MAXIMUM LENGTH SEQUENCES

Two simultaneously presented maximum length sequences (MLSs) were used to investigate temporal nonlinearities. Not only did the recorded aud itory evoked brain stem responses to these stimuli predictably increas e in latency and decrease in amplitude as a function of the temporal i nteractions between MLSs, but thresholds were elevated by more than 20 dB. Simultaneous MLS paradigms make it possible to investigate a numb er of nonlinearities in the auditory system efficiently. This study al so demonstrated that binaural MLS techniques can be used to assess aud itory function even in individuals with asymmetric hearing losses with out fear of crossover effects.