Auditory chain reaction: Effects of sound pressure and particle motion on auditory structures in fishes.

ABSTRACT: Despite the diversity in fish auditory structures, it remains elusive how otolith morphology and swim bladder-inner ear (= otophysic) connections affect otolith motion and inner ear stimulation. A recent study visualized sound-induced otolith motion; but tank acoustics revealed a complex mixture of sound pressure and particle motion. To separate sound pressure and sound-induced particle motion, we constructed a transparent standing wave tube-like tank equipped with an inertial shaker at each end while using X-ray phase contrast imaging. Driving the shakers in phase resulted in maximised sound pressure at the tank centre, whereas particle motion was maximised when shakers were driven out of phase (180°). We studied the effects of two types of otophysic connections-i.e. the Weberian apparatu

SUBMITTER: Schulz-Mirbach T 

PROVIDER: S-EPMC7100961 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature