Lateralization and Detection of Low-Frequency Binaural Stimuli: Specification ot the Extended Position-Variable Model

This publication is a companion to a paper which extends the position-variable model to describe and predict binaural lateralization and detection phenomena at frequencies up to 1200 Hz. The most important modification made to the model is the development of a frequency-dependent form of a function referred to as p(τ | f) that describes the relative number of binaural concidence detectors in the model as a c function of their internal delay. The function p(τ | f) is fitted to describe the lateralization of pure tones with c a fixed ITD over a range of frequencies, and to describe the ratio of N S to N S binaural detection 0 π π 0 thresholds. In this publication we summarize the discussions leading up to the particular choice of the function p(τ | f) and other related parameters that are now part of the current formulation of the position-c variable model. We also include in two appendices the complete set of equations that specify the position-variable model in its present form.