Subject: Re: 'Speak in my right ear and sing in my left' From: Martin Braun <nombraun(at)TELIA.COM> Date: Tue, 28 Sep 2004 14:18:57 +0200Richard Nance asked: > Is this "pre-processing" in the inner ear something that happens before > otoacoustic emissions kick in? I was under the impression that OAE helped to > amplify/filter. How did they control for it? Otoacoustic emissions are signs of the activity of the mechanical pre-amplifiers in the inner ear, that is signs of the motility of the outer hair cells. Evoked emissions, as statistically analyzed in the mentioned study, are today widely used in medical diagnosis as tests of the amplifiers. Such a test is like knocking on the mic to hear if the amp is plugged in and on right level. Martin ---------------------------- Martin Braun Neuroscience of Music S-671 95 Klässbol Sweden web site: http://w1.570.telia.com/~u57011259/index.htm