A direct approach for the design of chirp stimuli used for the recording of auditory brainstem responses

摘要: A recent study evaluates auditory brainstem responses (ABRs) evoked by chirps of different durations (sweeping rates) [Elberling et al. (2010). J. Acoust. Soc. Am. 128, 215–223]. The demonstrates that shorter are most efficient at higher levels stimulation whereas longer lower levels. Mechanisms other than the traveling wave delay, in particular, upward spread excitation and changes cochlear-neural delay with level, suggested to be responsible for these findings. As a consequence, models based on estimates insufficient design chirp stimuli, another model direct approach is therefore proposed. uses ABR-latencies from normal-hearing subjects response octave-band over wide range constructed decomposing broad-band chirp, constitute subset chirp. compensations proposed similar those found previous experimental study, which thus verifies results model.