Re: High-frequency hearing in humans (David Mountain )


Subject: Re: High-frequency hearing in humans
From:    David Mountain  <dcm@xxxxxxxx>
Date:    Tue, 25 Jan 2011 10:54:27 -0500
List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>

The high frequency limit in mammals correlates with head size (species with small heads have higher limits than species with big heads). Compared to small species like mice, humans have relatively poor high frequency hearing. For a nice review, see: Heffner RS. (2004) Primate hearing from a mammalian perspective. Anat Rec A Discov Mol Cell Evol Biol. 281:1111-22. Figure 7 in this paper shows the data for many species ranging in size from mice to elephants. Although the head sizes range over two orders of magnitude, the high frequency limits only range over about 1 order of magnitude. On Tue, Jan 25, 2011 at 4:27 AM, Piotr Majdak <piotr@xxxxxxxx> wrote: > Dear list, > > I'm looking for the reasons for the good high-frequency* hearing  in humans. > > The reasons I have until now are actually the obvious ones: > * Pinna localization cues > * Interaural level cues (ILD, they actually start to work from around 2 kHz) > > What do you think: if there were no need for the ILD and pinna cues, would > there be any other reasons? > > Thanks, > > Piotr > *) say, above 8 kHz > > -- > Piotr Majdak > Psychoacoustics and Experimental Audiology > Acoustics Research Institute <http://www.kfs.oeaw.ac.at> > Austrian Academy of Sciences <http://www.oeaw.ac.at/> > Wohllebengasse 12-14, 1040 Vienna, Austria > Tel.: +43 1 51581-2511 > Fax: +43 1 51581-2530 > -- David C. Mountain, Ph.D. Professor of Biomedical Engineering Boston University 44 Cummington St. Boston, MA 02215 Email:   dcm@xxxxxxxx Website: http://www.bu.edu/hrc/research/laboratories/auditory-biophysics/ Phone:   (617) 353-4343 FAX:     (617) 353-6766 Office:  ERB 413


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