HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (11) Citing Articles via Google Scholar Google Scholar Articles by Tollin, D. J. Articles by Yin, T. C.T. Search for Related Content PubMed PubMed Citation Articles by Tollin, D. J. Articles by Yin, T. C.T.

Report

Spectral Cues Explain Illusory Elevation Effects With Stereo Sounds in Cats

Department of Physiology, University of Wisconsin-Madison, Madison, Wisconsin 53706

Submitted 5 February 2003; accepted in final form 1 March 2003

Mammals localize sound sources in azimuth based on two binaural cues, interaural differences in the time of arrival and level of the sounds at the ears. In contrast, the cue for elevation is based on patterns of the broadband power spectra at each ear that result from the direction-dependent acoustic filtering properties of the head and pinnae. Although the exact form of this "spectral shape" cue is unknown, most attention has been directed toward a prominent direction-dependent energy minimum, or "notch," because its location in frequency, for both humans and cats, moves predictably from low to high as a source is moved from low to high elevations. However, there is little direct evidence that these spectral notches are important elevational cues in animals other than humans. Here we demonstrate a striking illusion in the localization of sounds in elevation by cats using stimulus configurations that elicit summing localization and the precedence effect that can be explained by spectral shape cues.

This article has been cited by other articles:

				L. Hausmann, D. T. T. Plachta, M. Singheiser, S. Brill, and H. Wagner In-flight corrections in free-flying barn owls (Tyto alba) during sound localization tasks J. Exp. Biol., September 15, 2008; 211(18): 2976 - 2988. [Abstract] [Full Text] [PDF]

				J. C. Holt, A. Lysakowski, and J. M. Goldberg Mechanisms of Efferent-Mediated Responses in the Turtle Posterior Crista J. Neurosci., December 20, 2006; 26(51): 13180 - 13193. [Abstract] [Full Text] [PDF]

				L. A. J. Reiss and E. D. Young Spectral Edge Sensitivity in Neural Circuits of the Dorsal Cochlear Nucleus J. Neurosci., April 6, 2005; 25(14): 3680 - 3691. [Abstract] [Full Text] [PDF]

				D. J. Tollin, L. C. Populin, J. M. Moore, J. L. Ruhland, and T. C. T. Yin Sound-Localization Performance in the Cat: The Effect of Restraining the Head J Neurophysiol, March 1, 2005; 93(3): 1223 - 1234. [Abstract] [Full Text] [PDF]

				D. J. Tollin, L. C. Populin, and T. C. T. Yin Neural Correlates of the Precedence Effect in the Inferior Colliculus of Behaving Cats J Neurophysiol, December 1, 2004; 92(6): 3286 - 3297. [Abstract] [Full Text] [PDF]

				D. J. Tollin and T. C.T. Yin Psychophysical Investigation of an Auditory Spatial Illusion in Cats: The Precedence Effect J Neurophysiol, October 1, 2003; 90(4): 2149 - 2162. [Abstract] [Full Text] [PDF]

				J. C. Middlebrooks Hearing Phantoms. Focus on "Spectral Cues Explain Illusory Elevation Effects With Stereo Sounds in Cats" J Neurophysiol, July 1, 2003; 90(1): 1 - 1. [Full Text] [PDF]