High- and low-side suppression likely arise from different cochlear mechanisms.

Evidence

Schmiedt and colleagues often found complete absence of high-side 2TS, with sparing of low-side 2TS, even in cochlear regions with up to 60 % outer-hair-cell loss; suggesting potentially different mechanisms for lowand high-side suppression. Our 2TS data are in broad agreement with these earlier findings: HI chinchillas had elevated high-side 2TS thresholds, but retained sensitivity to low-side suppressors. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3816