Brainstem electrical responses (BSER) to 60‐dB‐SL click in noise high passed at various cutoff frequencies separated by 1/2‐octave steps were recorded in normal‐hearing adult subjects. By applying a derived response technique, narrow‐band contributions to the BSER from specific portions of the basilar membrane were revealed. Latencies and amplitudes of the various waves in the derived BSER were recorded. Results indicate that nearly the whole cochlear partition can contribute to the brainstem response. The shifts in latency of waves I, III, and V and amplitude changes of waves I and III as a function of CF appear to be fully comparable to those of the AP. In contrast, the amplitude behavior of wave V as a function of CF is different from waves I and III depending upon the frequency range. The discrepency in the behavior of wave V with respect to the earlier waves suggests some sort of neural reorganization at the level where wave V is generated. The fact that there are contributions to the brainstem response from apical portions of the cochlea opens the possibility for extending the brainstem technique in assessing the higher cochlear turn function.
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April 1978
April 01 1978
Analysis of the click‐evoked brainstem potentials in man using high‐pass noise masking
M. Don;
M. Don
Ear Research Institute, 256 South Lake Street, Los Angeles, California 90057
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J. J. Eggermont
J. J. Eggermont
Ear Research Institute, 256 South Lake Street, Los Angeles, California 90057
Search for other works by this author on:
M. Don
J. J. Eggermont
Ear Research Institute, 256 South Lake Street, Los Angeles, California 90057
J. Acoust. Soc. Am. 63, 1084–1092 (1978)
Citation
M. Don, J. J. Eggermont; Analysis of the click‐evoked brainstem potentials in man using high‐pass noise masking. J. Acoust. Soc. Am. 1 April 1978; 63 (4): 1084–1092. https://doi.org/10.1121/1.381816
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