Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 1 November 1991:
Vol. 254. no. 5032, pp. 721 - 724
DOI: 10.1126/science.1948053
Prev | Table of Contents | Next

Articles

Science, Vol 254, Issue 5032, 721-724
Copyright © 1991 by American Association for the Advancement of Science

articles

Interaural phase coding in auditory midbrain: influence of dynamic stimulus features

MW Spitzer and MN Semple

Department of Anatomy and Neurobiology, University of California, Irvine, CA 92717.

A laterally located sound source stimulates the two ears at slightly different times, generating interaural phase disparities (IPDs) that are used for sound localization. Under natural conditions, such interaural cues are likely to be constantly changing, or dynamic. In the inferior colliculus of gerbils and cats, the nonlinearities in the coding of dynamic interaural phase cues are demonstrated. Responses to ecologically realistic phase cues are more reflective of the change of IPD than of the absolute IPDs over which that change occurs. This observation is inconsistent with the established view that directional information is coded in terms of absolute IPD.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Representation of Dynamic Interaural Phase Difference in Auditory Cortex of Awake Rhesus Macaques.
B. H. Scott, B. J. Malone, and M. N. Semple (2009)
J Neurophysiol 101, 1781-1799
   Abstract »    Full Text »    PDF »
Psychophysical and Physiological Evidence for Fast Binaural Processing.
I. Siveke, S. D. Ewert, B. Grothe, and L. Wiegrebe (2008)
J. Neurosci. 28, 2043-2052
   Abstract »    Full Text »    PDF »
Sensitivity to Interaural Time Differences in the Inferior Colliculus with Bilateral Cochlear Implants.
Z. M. Smith and B. Delgutte (2007)
J. Neurosci. 27, 6740-6750
   Abstract »    Full Text »    PDF »
Auditory Midbrain and Nerve Responses to Sinusoidal Variations in Interaural Correlation.
P. X. Joris, B. van de Sande, A. Recio-Spinoso, and M. van der Heijden (2006)
J. Neurosci. 26, 279-289
   Abstract »    Full Text »    PDF »
GABAergic Inhibition Controls Neural Gain in Inferior Colliculus Neurons Sensitive to Interaural Time Differences.
N. J. Ingham and D. McAlpine (2005)
J. Neurosci. 25, 6187-6198
   Abstract »    Full Text »    PDF »
Dependency of the Interaural Phase Difference Sensitivities of Inferior Collicular Neurons on a Preceding Tone and Its Implications in Neural Population Coding.
S. Furukawa, K. Maki, M. Kashino, and H. Riquimaroux (2005)
J Neurophysiol 93, 3313-3326
   Abstract »    Full Text »    PDF »
Spike-Frequency Adaptation in the Inferior Colliculus.
N. J. Ingham and D. McAlpine (2004)
J Neurophysiol 91, 632-645
   Abstract »    Full Text »    PDF »
Adaptation and Inhibition Underlie Responses to Time-Varying Interaural Phase Cues in a Model of Inferior Colliculus Neurons.
A. Borisyuk, M. N. Semple, and J. Rinzel (2002)
J Neurophysiol 88, 2134-2146
   Abstract »    Full Text »    PDF »
Context-Dependent Adaptive Coding of Interaural Phase Disparity in the Auditory Cortex of Awake Macaques.
B. J. Malone, B. H. Scott, and M. N. Semple (2002)
J. Neurosci. 22, 4625-4638
   Abstract »    Full Text »    PDF »
Sound localization in callosal agenesis and early callosotomy subjects: brain reorganization and/or compensatory strategies.
N. Lessard, F. Lepore, J. Villemagne, and M. Lassonde (2002)
Brain 125, 1039-1053
   Abstract »    Full Text »    PDF »
Effects of Auditory Stimulus Context on the Representation of Frequency in the Gerbil Inferior Colliculus.
B. J. Malone and M. N. Semple (2001)
J Neurophysiol 86, 1113-1130
   Abstract »    Full Text »    PDF »
Sensitivity to Simulated Directional Sound Motion in the Rat Primary Auditory Cortex.
D. E. Doan and J. C. Saunders (1999)
J Neurophysiol 81, 2075-2087
   Abstract »    Full Text »    PDF »
Transformation of Binaural Response Properties in the Ascending Auditory Pathway: Influence of Time-Varying Interaural Phase Disparity.
M. W. Spitzer and M. N. Semple (1998)
J Neurophysiol 80, 3062-3076
   Abstract »    Full Text »    PDF »
Commissural and Lemniscal Synaptic Input to the Gerbil Inferior Colliculus.
D. R. Moore, V. C. Kotak, and D. H. Sanes (1998)
J Neurophysiol 80, 2229-2236
   Abstract »    Full Text »    PDF »
Auditory Motion Induces Directionally Dependent Receptive Field Shifts in Inferior Colliculus Neurons.
W. W. Wilson and W. E. O'Neill (1998)
J Neurophysiol 79, 2040-2062
   Abstract »    Full Text »    PDF »
Role of Synaptic Inhibition in Processing of Dynamic Binaural Level Stimuli.
D. H. Sanes, B. J. Malone, and M. N. Semple (1998)
J. Neurosci. 18, 794-803
   Abstract »    Full Text »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)