Abstract：
:Several studies have compared the frequency selectivity of waves I and V of the auditory brainstem response (ABR) in humans, however little is known about the frequency selectivity of the middle latency response (MLR). Simultaneous recordings of ABRs and MLRs to 60 dB peSPL 2000-Hz probe tones were obtained in the presence of 0.5, 1.0, 1.41, 2.0, 2.83 and 4.0 kHz maskers presented at 40, 60, and 80 dB SPL. ABR/MLR iso-intensity masking profiles showing the percentage of the unmasked amplitudes as a function of frequency were constructed for ABR peak V-Vn and MLR peaks Na-Pa and Nb-Pb at each masker intensity. No significant differences were found between the frequency selectivity of the ABR and MLR, and the effects of masking on the amplitudes of these responses were similar. These results are consistent with the suggestion that frequency tuning is similar up to the level of the primary auditory cortex.
journal_name
Hear Resjournal_title
Hearing researchauthors
Mackersie C,Down KE,Stapells DRdoi
10.1016/0378-5955(93)90201-bsubject
Has Abstractpub_date
1993-02-01 00:00:00pages
61-8issue
1-2eissn
0378-5955issn
1878-5891pii
0378-5955(93)90201-Bjournal_volume
65pub_type
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