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Titolo:
A model for sound lateralization
Autore:
Aharonson, V; Furst, M;
Indirizzi:
Tel Aviv Univ, Fac Engn, Dept Elect Engn Syst, IL-69978 Tel Aviv, Israel Tel Aviv Univ Tel Aviv Israel IL-69978 n Syst, IL-69978 Tel Aviv, Israel
Titolo Testata:
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
fascicolo: 6, volume: 109, anno: 2001,
pagine: 2840 - 2851
SICI:
0001-4966(200106)109:6<2840:AMFSL>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPERIOR OLIVARY COMPLEX; INFERIOR COLLICULUS NEURONS; INTERAURAL TIME DIFFERENCES; AUDITORY-NERVE DATA; DORSAL NUCLEUS; MULTIPLE-SCLEROSIS; BINAURAL RESPONSES; BRAIN-STEM; ALBINO-RAT; LESIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
56
Recensione:
Indirizzi per estratti:
Indirizzo: Aharonson, V Tel Aviv Univ, Fac Engn, Dept Elect Engn Syst, IL-69978 Tel Aviv, Israel Tel Aviv Univ Tel Aviv Israel IL-69978 978 Tel Aviv, Israel
Citazione:
V. Aharonson e M. Furst, "A model for sound lateralization", J ACOUST SO, 109(6), 2001, pp. 2840-2851

Abstract

Recent studies of multiple sclerosis (MS) and stroke patients suggested a correlation between two patterns of abnormal performance in lateralization tasks and two sites of pontine lesions. Most patients who had lesions belowor at the superior olivary complex (SOC) perceived all interaural differences in binaural. stimuli as small, while most patients who had lesions above the SOC perceived all interaural differences as large. The two. abnormal performance patterns occurred for interaural time differences (ITD) and/or for interaural level differences (ILD). The present model proposes a multi-level hierarchical brainstem structure that estimates ITD and ILD. The first level seeks dissimilarity between the left and right inputs and a second level looks for similarity between the two sides' inputs. Each level is modeled as an ensemble of neural arrays in which each unit performs a logic orarithmetic function. The inputs are simulations of auditory nerve responses to broadband stimuli. Simulations yield good correspondence to the effectof both locations of pontine lesions on binaural performance. (C) 2001 Acoustical Society of America.

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Documento generato il 20/09/20 alle ore 07:53:50