Interaural phase coding in auditory midbrain

Influence of dynamic stimulus features

M. W. Spitzer, Malcolm Semple

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)721-724
Number of pages4
JournalScience
Volume254
Issue number5032
StatePublished - 1991

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Mesencephalon
Cues
Sound Localization
Inferior Colliculi
Gerbillinae
Ear
Cats

ASJC Scopus subject areas

  • General

Cite this

Spitzer, M. W., & Semple, M. (1991). Interaural phase coding in auditory midbrain: Influence of dynamic stimulus features. Science, 254(5032), 721-724.

Interaural phase coding in auditory midbrain : Influence of dynamic stimulus features. / Spitzer, M. W.; Semple, Malcolm.

In: Science, Vol. 254, No. 5032, 1991, p. 721-724.

Research output: Contribution to journalArticle

Spitzer, MW & Semple, M 1991, 'Interaural phase coding in auditory midbrain: Influence of dynamic stimulus features', Science, vol. 254, no. 5032, pp. 721-724.
Spitzer, M. W. ; Semple, Malcolm. / Interaural phase coding in auditory midbrain : Influence of dynamic stimulus features. In: Science. 1991 ; Vol. 254, No. 5032. pp. 721-724.
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