Models for diotic and dichotic detection (Davidson et al. 2009)


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Accession:126636
Several psychophysical models for masked detection were evaluated using reproducible noises. The data were hit and false-alarm rates from three psychophysical studies of detection of 500-Hz tones in reproducible noise under diotic (N0S0) and dichotic (N0Spi) conditions with four stimulus bandwidths (50, 100, 115, and 2900 Hz). Diotic data were best predicted by an energy-based multiple-detector model that linearly combined stimulus energies at the outputs of several critical-band filters. The tone-plus-noise trials in the dichotic data were best predicted by models that linearly combined either the average values or the standard deviations of interaural time and level differences; however, these models offered no predictions for noise-alone responses. ...". The Breebart et al. 2001 and the Dau et al. 1996 models are supplied at the Carney lab web site.
Reference:
1 . Davidson SA, Gilkey RH, Colburn HS, Carney LH (2009) An evaluation of models for diotic and dichotic detection in reproducible noises. J Acoust Soc Am 126:1906-25 [PubMed]
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Cell Type(s): Auditory nerve;
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