Re: animal sound localization ("Daniel J. Tollin" )

Subject: Re: animal sound localization From: "Daniel J. Tollin" <Daniel.Tollin@xxxxxxxx> Date: Wed, 31 Oct 2007 08:43:23 -0600 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY> This is a multi-part message in MIME format. ------_=_NextPart_001_01C81BCC.63E92D61 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Hi, Barn owls have 2-3 times poorer spatial acuity in elevation than in azimuth (Bala, A. D. S, M.W. Spitzer, T. T. Takahashi. 2007. Auditory spatial acuity approximates the resolving power of space-specific neurons. PLOS One, 2(8), e675) Note that the Bala et al paper is free online at the PLOS website. =20 Are you interested in absolute localization (i.e., identifying the source location) or acuity (discriminating between two locations)? You refer to both in your question. Absolute localization and acuity are two different psychophysical measures of localization abilities, but they need not be correlated (e.g., sounds yielding good acuity may not be localized accurately). See: Heffner H.E., Heffner R.S., Tollin D.J., Populin L.C., Moore J.M., Ruhland J.L., Yin T.C.T. (2005) The sound-localization ability of cats. J Neurophysiol. 94: 3653-3655 http://jn.physiology.org/cgi/content/full/94/5/3653 =20 Daniel J. Tollin, PhD Assistant Professor =20 University of Colorado Health Sciences Center Department of Physiology and Biophysics/Mail Stop 8307 Research Complex 1-N, Rm 7120 12800 East 19th Ave PO Box 6511 Aurora, CO 80045 =20 =20 =20 =20 =20 ________________________________ From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx On Behalf Of Chris Clark Sent: Wednesday, October 31, 2007 8:07 AM To: AUDITORY@xxxxxxxx Subject: Re: animal sound localization =20 Bats! owls are passive locators - so be sure you differentiate between these two mechanisms. ... and you are asking about scientific examples of such. FYI - There are observations of large whales doing things - like counter-calling over long distances and then joining up - that seem to have an explanation in this domain. Some of these have been scientifically validated by playback experiments, but these are not able to test vertical acuity. Whales also find food resources through either active or passive acoustic localization in 3-space. chris At 04:38 PM 10/30/2007, D.W. Smith wrote: Tyto alba, the barn owl. -----Original Message----- From: AUDITORY - Research in Auditory Perception [ mailto:AUDITORY@xxxxxxxx <mailto:AUDITORY@xxxxxxxx> ] On Behalf Of Brian Keith Branstetter Sent: Tuesday, October 30, 2007 4:25 PM To: AUDITORY@xxxxxxxx Subject: animal sound localization Hello. Are there any examples of an animal (besides a dolphin) who can localize sound sources in the vertical plane with the same (or similar or better) acuity as the horizontal plane? Are there any references to such a finding? Thank you in advance. Brian Branstetter NRC postdoc US Navy marine mammal program=20 Dr. Christopher W. Clark, I.P. Johnson Director Bioacoustics Research Program, Cornell Laboratory of Ornithology Senior Scientist, Department of Neurobiology and Behavior Cornell University=20 159 Sapsucker Woods Rd. Ithaca, NY 14850 Phone:607-254-2408 FAX:607-254-2460 website:http://www.birds.cornell.edu/brp/ ------_=_NextPart_001_01C81BCC.63E92D61 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:st1=3D"urn:schemas-microsoft-com:office:smarttags" = xmlns=3D"http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3DContent-Type content=3D"text/html; = charset=3Dus-ascii"> <meta name=3DGenerator content=3D"Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" = name=3D"place"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"PlaceName"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"PlaceType"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"address"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"Street"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"City"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"State"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"country-region"/> <o:SmartTagType = namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"PostalCode"/>  <style>  </style> </head> <body lang=3DEN-US link=3Dblue vlink=3Dblue> <div class=3DSection1> Hi,<o:p></o:p>   Barn owls have 2-3 times = poorer spatial acuity in elevation than in azimuth (Bala, A. D. S, M.W. = Spitzer,  T. T. Takahashi.  2007.  Auditory spatial acuity approximates = the resolving power of space-specific neurons.  PLOS One, 2(8), = e675)  Note that the Bala et al paper is free online at the PLOS = website.<o:p></o:p> <o:p> </o:p> Are you interested in absolute localization (i.e., identifying the source location) or acuity = (discriminating between two locations)?  You refer to both in your question.  = Absolute localization and acuity are two different psychophysical measures of localization abilities, but they need not be correlated (e.g., sounds = yielding good acuity may not be localized = accurately).<o:p></o:p> See: Heffner H.E., Heffner R.S., = Tollin D.J., Populin L.C., Moore J.M., Ruhland J.L., Yin T.C.T.  (2005) = The sound-localization ability of cats. J Neurophysiol. 94: 3653-3655 <a href=3D"http://jn.physiology.org/cgi/content/full/94/5/3653">http://jn.ph= ysiology.org/cgi/content/full/94/5/3653</a><o:p></o:p> <o:p> </o:p> Daniel J. Tollin, = PhD<o:p></o:p> Assistant Professor<o:p></o:p>  <o:p></o:p> University of <st1:place w:st=3D"on"><st1:PlaceName = w:st=3D"on">Colorado</st1:PlaceName> <st1:PlaceName w:st=3D"on">Health</st1:PlaceName> <st1:PlaceName = w:st=3D"on">Sciences</st1:PlaceName> <st1:PlaceType = w:st=3D"on">Center</st1:PlaceType></st1:place><o:p></o:p></= p> Department of Physiology and Biophysics/Mail Stop = 8307<o:p></o:p> Research Complex 1-N, Rm = 7120<o:p></o:p> <st1:Street w:st=3D"on"><st1:address = w:st=3D"on">12800 = East 19th Ave</st1:address></st1:Street><o:p></o:p> <st1:address w:st=3D"on"><st1:Street = w:st=3D"on">PO = Box</st1:Street> = 6511</st1:address><o:p></o:p> <st1:place w:st=3D"on"><st1:City w:st=3D"on">Aurora</st1:Ci= ty>, <st1:State w:st=3D"on">CO</st1:State> <st1:PostalCode = w:st=3D"on">80045</st1:PostalCode></st1:place><o:p></o:p></= p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> <div> <div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'> <hr size=3D3 width=3D"100%" align=3Dcenter tabindex=3D-1> </div> From: = AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxx = On Behalf Of Chris Clark Sent: Wednesday, October = 31, 2007 8:07 AM To: = AUDITORY@xxxxxxxx Subject: Re: animal sound localization<o:p></o:p> </div> <o:p> </o:p> Bats! owls are passive locators - so be sure you differentiate between these = two mechanisms. ... and you are asking about scientific examples of such. FYI - There are observations of large = whales doing things - like counter-calling over long distances and then joining = up - that seem to have an explanation in this domain. Some of these have been scientifically validated by playback experiments, but these are not able = to test vertical acuity. Whales also find food resources through either = active or passive acoustic localization in 3-space. chris At 04:38 PM 10/30/2007, D.W. Smith wrote: <o:p></o:p> Tyto alba, the barn owl. -----Original Message----- From: AUDITORY - Research in Auditory Perception [<a href=3D"mailto:AUDITORY@xxxxxxxx" eudora=3Dautourl> mailto:AUDITORY@xxxxxxxx</a>] On Behalf Of Brian Keith = Branstetter Sent: Tuesday, October 30, 2007 4:25 PM To: AUDITORY@xxxxxxxx Subject: animal sound localization Hello. Are there any examples of an animal (besides a dolphin) who can = localize sound sources in the vertical plane with the same (or similar or = better) acuity as the horizontal plane? Are there any references to such a finding? Thank you in advance. Brian Branstetter NRC postdoc <st1:country-region w:st=3D"on"><st1:place = w:st=3D"on">US</st1:place></st1:country-region> Navy marine mammal program <o:p></o:p> </x-sigsep><x-sigsep>Dr. Christopher W. Clark, I.P. Johnson Director Bioacoustics Research Program, Cornell Laboratory of Ornithology Senior Scientist, Department of Neurobiology and Behavior Cornell University <st1:Street w:st=3D"on"><st1:address w:st=3D"on">159 Sapsucker Woods = Rd.</st1:address></st1:Street> <st1:place w:st=3D"on"><st1:City w:st=3D"on">Ithaca</st1:City>, = <st1:State w:st=3D"on">NY</st1:State> <st1:PostalCode w:st=3D"on">14850</st1:PostalCode></st1:place> Phone:607-254-2408 FAX:607-254-2460 website:http://www.birds.cornell.edu/brp/<o:p></o:p> </div> </body> </html> ------_=_NextPart_001_01C81BCC.63E92D61--

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