TY - JOUR
T1 - Effects of the crossed acoustic reflex on distortion-product otoacoustic emissions in awake rabbits
AU - Whitehead, M. L.
AU - Martin, G. K.
AU - Lonsbury-Martin, B. L.
N1 - Funding Information:
This research was supported in part by funds from the Public Health Service (DC00313, DC00613, ES03500) and the Deafness Research Foundation. The authors thank M.J. Place, B.B. Stagner, D.J. Murray and D.L. Himes, for technical assistance, and R.J. Odutayo, for secretarial services.
PY - 1991/1
Y1 - 1991/1
N2 - Recent studies in anesthetized cats suggest that contralateral-sound stimulation acts to suppress ipsilateral neural responses via the medial olivocochlear-efferent system. Activation of this descending efferent pathway presumably influences ipsilateral outer hair cell motility and, thus, cochlear micromechanics, resulting in reduced input to auditory-nerve fibers. The principal aim of the present study was to determine if contralateral-sound stimuli influence the generation of ipsilateral distortion-product otoacoustic emissions, in the ears of awake rabbits. The results showed no effects of contralateral stimuli on these emissions that could not be attributed to the crossed acoustic middle-ear reflex. The findings further indicate that distortion-product otoacoustic emission amplitudes over a wide range of frequencies can be dramatically reduced when the middle-ear reflex is activated.
AB - Recent studies in anesthetized cats suggest that contralateral-sound stimulation acts to suppress ipsilateral neural responses via the medial olivocochlear-efferent system. Activation of this descending efferent pathway presumably influences ipsilateral outer hair cell motility and, thus, cochlear micromechanics, resulting in reduced input to auditory-nerve fibers. The principal aim of the present study was to determine if contralateral-sound stimuli influence the generation of ipsilateral distortion-product otoacoustic emissions, in the ears of awake rabbits. The results showed no effects of contralateral stimuli on these emissions that could not be attributed to the crossed acoustic middle-ear reflex. The findings further indicate that distortion-product otoacoustic emission amplitudes over a wide range of frequencies can be dramatically reduced when the middle-ear reflex is activated.
KW - Contralateral acoustic stimuli
KW - Crossed acoustic middle-ear reflex
KW - Distortion-product otoacoustic emissions
KW - Olivocochlear efferents
UR - https://www.scopus.com/pages/publications/0025958252
UR - https://www.scopus.com/pages/publications/0025958252#tab=citedBy
U2 - 10.1016/0378-5955(91)90007-V
DO - 10.1016/0378-5955(91)90007-V
M3 - Article
C2 - 2013546
SN - 0378-5955
VL - 51
SP - 55
EP - 72
JO - Hearing Research
JF - Hearing Research
IS - 1
ER -