title: Extension of a binaural cross-correlation model by contralateral inhibition. II. The law of the first wave front.
abstract: This paper explains the "law of the first wave front" and related binaural phenomena on the basis of the model presented in the previous paper [Lindemann, J. Acoust. Soc. Am. 80, 1608-1622 (1986)] in which a contralateral inhibition mechanism was added to the well-known model of binaural cross correlation. In order to verify the predictions of the extended model, psychoacoustic experiments were performed with pairs of narrow-band impulses which were presented through headphones. The test signals consisted of a diotic primary sound and an "echo" with an interaural arrival-time difference. Lateralization was measured as a function of the time delay between primary sound and echo. For delays below the echo threshold, summing localization and the law of the first wave front were simulated; for delays above the echo threshold, the model predicts an influence of the primary sound on the lateralization of the echo.
mesh_terms: D001307:Auditory Perception / Q000502:physiology*; D001309:Auditory Threshold; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008433:Mathematics; D008959:Models, Neurological; D009433:Neural Inhibition; D011571:Psychoacoustics; D013016:Sound; D013017:Sound Localization / Q000502:physiology*; D013997:Time Factors