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Phys Rev Lett ; 116(2): 028101, 2016 Jan 15.
Article in English | MEDLINE | ID: mdl-26824568

ABSTRACT

In internally coupled ears, displacement of one eardrum creates pressure waves that propagate through air-filled passages in the skull and cause displacement of the opposing eardrum, and conversely. By modeling the membrane, passages, and propagating pressure waves, we show that internally coupled ears generate unique amplitude and temporal cues for sound localization. The magnitudes of both these cues are directionally dependent. The tympanic fundamental frequency segregates a low-frequency regime with constant time-difference magnification from a high-frequency domain with considerable amplitude magnification.


Subject(s)
Ear/physiology , Models, Biological , Sound Localization/physiology , Tympanic Membrane/physiology , Animals , Cues , Hearing/physiology , Models, Anatomic , Skull/anatomy & histology , Skull/physiology , Vibration
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