Temporal masking of human auditory evoked brain stem responses using two simultaneously presented maximum length sequences.
Two simultaneously presented maximum length sequences (MLSs) were used to investigate temporal nonlinearities. Not only did the recorded auditory evoked brain stem responses to these stimuli predictably increase in latency and decrease in amplitude as a function of the temporal interactions between MLSs, but thresholds were elevated by more than 20 dB. Simultaneous MLS paradigms make it possible to investigate a number of nonlinearities in the auditory system efficiently. This study also demonstrated that binaural MLS techniques can be used to assess auditory function even in individuals with asymmetric hearing losses without fear of crossover effects.
Lasky
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University of Wisconsin-Madison Medical School.
Shi
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Hecox
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KE
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D001301:Audiometry, Pure-Tone; D001306:Auditory Pathways; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006309:Hearing / Q000502:physiology*; D006311:Hearing Disorders / Q000175:diagnosis; D006801:Humans; D008297:Male; D010470:Perceptual Masking; D013997:Time Factors