Subject: Re: HC selectivity ... was Re: Physiological models of cochlea activity - alternatives to the travelling wave From: Martin Braun <nombraun@xxxxxxxx> Date: Mon, 1 Oct 2007 21:00:30 +0200 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Erik Larsen wrote: > Perhaps Martin meant that nobody has been able to measure BM motion below > 60 dB with dysfunctional outer hair cells? But that wouldn't be a proof > there is no motion. In fact, it would be difficult to understand why there > wouldn't be any motion below 60 dB, however small. For many years now, the measurement sensitivity for BM excursions has been well below 1 nanometer. Now, if BM motion is < 1 nm at 60 dB, how big then can it be at 0 dB? Please do the maths, and then come back. You can be sure that all readers of this thread will tremendously enjoy that figure. Martin --------------------------------------------------------------------- Martin Braun Neuroscience of Music S-671 95 Klässbol Sweden web site: http://w1.570.telia.com/~u57011259/index.htm