Question on paper by Recio et al. ("reinifrosch@xxxxxxxx" )


Subject: Question on paper by Recio et al.
From:    "reinifrosch@xxxxxxxx"  <reinifrosch@xxxxxxxx>
Date:    Sat, 20 Oct 2007 13:59:14 +0000
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

Hello ! I just have succeeded in answering the question on the paper by Recio et al. myself -- by reading the paper. A. Recio et al. (1998), "Basilar-membrane responses to clicks ...", JASA 103: 1972-1989. In Section I.A. it says: "The hole allowed direct visualization of the basilar membrane and placement on it of a few glass microbeads (10-30 micro-m in diameter), which served as reflecting targets for the laser beam." On the chinchilla BM, one octave corresponds to about delta-x_b = 2.3 mm; so the frequency ratio of the two active peaks observed in Figs. 9 and 10, 9.0 kHz / 8.1 kHz = 1.111 , corresponds to about delta-x_b = 0.35 mm. Possible reason for different heights of those two active peaks: different glass-microbead diameters. Reinhart Frosch. Reinhart Frosch, Dr. phil. nat., r. PSI and ETH Zurich, Sommerhaldenstr. 5B, CH-5200 Brugg. Phone: 0041 56 441 77 72. Mobile: 0041 79 754 30 32. E-mail: reinifrosch@xxxxxxxx .


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