Crocodiles use both interaural level differences and interaural time differences to locate a sound source

被引：7

作者：

Papet, L. ^{[1
,2
]}

Raymond, M. ^{[1
]}

Boyer, N. ^{[1
]}

Mathevon, N. ^{[1
]}

Grimault, N. ^{[1
]}

机构：

[1] Univ Lyon 1, Equipe Cognit Audit & Psychoacoust, Ctr Rech Neurosci Lyon, CNRS,INSERM,U1028,UMR 5292, Lyon, France

[2] Univ Lyon, Equipe Neuroethol Sensorielle, Ctr Rech Neurosci Lyon, CNRS,INSERM,U1028,UMR 5292, St Etienne, France

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2020年 / 148卷 / 04期

关键词：

MINIMUM AUDIBLE ANGLE; LOCALIZATION ACUITY; AUDITORY RESPONSES; DUPLEX THEORY; LARGE MAMMALS; SENSITIVITY; UNDERWATER; HEARING; NOISE;

D O I：

10.1121/10.0001979

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

To explore how crocodilians locate a sound source, two Nile crocodiles (Crocodylus niloticus) were trained to swim towards an acoustic target. Using filtered versions of synthesized stimuli, the respective roles of interaural level differences (ILDs) and interaural time differences (ITDs), which are the two main cues providing information on sound source position, were tested. This study shows that crocodiles rely on both ILDs and ITDs to locate the spatial direction of a sound source and that their performance is lower when one of the cues is lacking.

引用

页码：EL307 / EL313

页数：7

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