Binaural processing model based on contralateral inhibition. I. Model structure

D.J. Breebaart, S.L.J.D.E. Par, van de, A.G. Kohlrausch

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

168 Citaten (Scopus)

Samenvatting

This article presents a quantitative binaural signal detection model which extends the monaural model described by Dau et al. [J. Acoust. Soc. Am. 99, 3615–3622 (1996)]. The model is divided into three stages. The first stage comprises peripheral preprocessing in the right and left monaural channels. The second stage is a binaural processor which produces a time-dependent internal representation of the binaurally presented stimuli. This stage is based on the Jeffress delay line extended with tapped attenuator lines. Through this extension, the internal representation codes both interaural time and intensity differences. In contrast to most present-day models, which are based on excitatory–excitatory interaction, the binaural interaction in the present model is based on contralateral inhibition of ipsilateral signals. The last stage, a central processor, extracts a decision variable that can be used to detect the presence of a signal in a detection task, but could also derive information about the position and the compactness of a sound source. In two accompanying articles, the model predictions are compared with data obtained with human observers in a great variety of experimental conditions
Originele taal-2Engels
Pagina's (van-tot)1074-1088
Aantal pagina's15
TijdschriftJournal of the Acoustical Society of America
Volume110
Nummer van het tijdschrift2
DOI's
StatusGepubliceerd - 2001

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