DPOAE und laterale Inhibition bei chronischem Tinnitus

Abstract

For a considerable number of tinnitus patients, efferent control of OHC activity is restricted, but this seems to be confined to a certain type of tinnitus only.

Increased contralateral suppression of otoacoustic emissions indicates a hyperresponsive medial olivocochlear system in humans with tinnitus and hyperacusis

“…Anomalous MOC function has been hypothesized, and tested for, in a variety of clinical conditions, including tinnitus, a prevalent and often disruptive condition in which sound is perceived in the absence of actual sound (Shargorodsky et al 2010;Stouffer and Tyler 1990). Despite a large number of studies, however, it remains unclear whether or not there is a relationship between MOC function and tinnitus (Attias et al 1996(Attias et al , 2005Ceranic et al 1998;Chéry-Croze et al 1993Fávero et al 2006;Fernandes and Santos 2009;Geven et al 2011Geven et al , 2012Graham and Hazell 1994;Hesse et al 2005Hesse et al , 2008Hsu et al 2013;Lalaki et al 2011;Lind 1996;Paglialonga et al 2010Paglialonga et al , 2011Riga et al 2007;Riga et al in press;Urnau and Tochetto 2012). Results differ even among the more carefully controlled studies of this issue, with some reporting reduced MOC function in tinnitus (Attias et al 1996;Riga et al 2007) and others reporting no difference compared with controls (Geven et al 2011;Lind 1996;Paglialonga et al 2010Paglialonga et al , 2011.…”