Does reduction in cochlear gain explain the overshoot effect?

2011 ◽  
Vol 129 (4) ◽  
pp. 2593-2593
Author(s):  
Mark Fletcher ◽  
Jessica de Boer ◽  
Katrin Krumbholz
Keyword(s):  
Cochlear Gain

The Speed of Auditory Low-Side Suppression

2005 ◽  
Vol 93 (1) ◽  
pp. 201-209 ◽  
Author(s):  
Marcel van der Heijden ◽  
Philip X. Joris
Keyword(s):  
Traveling Wave ◽  
Auditory Nerve ◽  
Control Mechanism ◽  
Gain Control ◽  
Auditory Stimuli ◽  
Integration Time ◽  
The Difference ◽  
Cochlear Gain ◽  
Millisecond Accuracy ◽  
Group Delays

The nonlinear cochlear phenomenon of two-tone suppression is known to be very fast, but precisely how fast is unknown. We studied the timing of low-side suppression in the auditory nerve of the cat using multitone complexes as auditory stimuli. An evalution of the group delays of the responses to these complexes allowed us to measure the timing of the responses with sub-millisecond accuracy for a large number of fibers with characteristic frequencies (CFs) between 2 and 40 kHz. In particular, we measured the delays with which the same below-CF tone complexes affected the response either as an excitor (when presented alone) or as a suppressor (when combined with a CF probe). For CFs <10 kHz, we found that the delay of suppression was larger than the delay of excitation by several hundred microseconds. The difference between the delay of suppression and that of excitation decreased with increasing CF, becoming negligible for CFs >15 kHz. The results are analyzed in terms of traveling-wave delays and a purported cochlear gain control. The data suggest that suppression originates from a gain-control mechanism with an integration time in the order of two cycles of CF.

Is Overshoot Caused by an Efferent Reduction in Cochlear Gain?

2013 ◽  
pp. 65-72 ◽  
Author(s):  
Mark Fletcher ◽  
Jessica de Boer ◽  
Katrin Krumbholz
Keyword(s):  
Cochlear Gain

Behavioral explorations of cochlear gain reduction

2014 ◽  
Vol 135 (4) ◽  
pp. 2384-2384
Author(s):  
Elizabeth A. Strickland ◽  
Elin Roverud ◽  
Kristina DeRoy Milvae
Keyword(s):  
Gain Reduction ◽  
Cochlear Gain

scholarly journals Suprathreshold Psychoacoustics and Envelope-Following Response Relations: Normal-Hearing, Synaptopathy and Cochlear Gain Loss

2018 ◽  
Vol 104 (5) ◽  
pp. 800-803 ◽  
Author(s):  
Sarah Verhulst ◽  
Frauke Ernst ◽  
Markus Garrett ◽  
Viacheslav Vasilkov
Keyword(s):  
Normal Hearing ◽  
Envelope Following Response ◽  
Cochlear Gain ◽  
Gain Loss

The Role of the Medial Olivocochlear Reflex in Psychophysical Masking and Intensity Resolution in Humans: A Review

2021 ◽  
Author(s):  
Skyler G. Jennings
Keyword(s):  
Otoacoustic Emissions ◽  
Acoustic Stimulation ◽  
Forward Masking ◽  
Frequency Resolution ◽  
Vestibular Neurectomy ◽  
Contralateral Acoustic Stimulation ◽  
Cochlear Gain ◽  
Medial Olivocochlear ◽  
Intensity Resolution

This review addresses the putative role of the medial olivocochlear (MOC) reflex on psychophysical masking and intensity resolution in humans. A framework for interpreting psychophysical results in terms of the expected influenced of the MOC reflex is introduced. This framework is used to review the effects of a precursor or contralateral acoustic stimulation on 1) simultaneous masking of brief tones, 2) behavioral estimates of cochlear gain and frequency resolution in forward masking, 3) the build-up and decay of forward masking, and 4) measures of intensity resolution. Support, or lack thereof, for a role of the MOC reflex in psychophysical perception is discussed in terms of studies on estimates of MOC strength from otoacoustic emissions and the effects of resection of the olivocochlear bundle in patients with vestibular neurectomy. Novel, innovative approaches are needed to resolve the dissatisfying conclusion that current results are unable to definitively confirm or refute the role of the MOC reflex in masking and intensity resolution.

A summary of behavioral measures of cochlear gain and gain reduction in listeners with normal hearing or minimal cochlear hearing loss

2021 ◽  
Vol 149 (4) ◽  
pp. A106-A106
Author(s):  
Elizabeth A. Strickland ◽  
Miranda Skaggs ◽  
Anna Hopkins ◽  
Nicole Mielnicki ◽  
William B. Salloom ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Normal Hearing ◽  
Behavioral Measures ◽  
Cochlear Hearing Loss ◽  
Gain Reduction ◽  
Cochlear Gain
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