Research using the model organism nematode has greatly facilitated our understanding of sensory biology, including touch, olfaction, taste, vision and proprioception. While hearing had long been considered to be restricted to vertebrates and some arthropods, we recently discovered that is capable of sensing and responding to airborne sound in a frequency and sound source-size-dependent manner. auditory sensation occurs when airborne sound physically vibrates their external cuticle (skin) to activate the sound-sensitive mechanosensory FLP/PVD neurons via nicotinic acetylcholine receptors (nAChRs), triggering aversive phonotaxis behavior. Here, we report stepwise methods to characterize these three features of auditory sensation, including sound-evoked skin vibration, neuronal activation, and behavior. This approach provides an accessible platform to investigate the cellular and molecular mechanisms underlying auditory sensation and mechanotransduction mechanisms in .
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http://dx.doi.org/10.52601/bpr.2024.240027 | DOI Listing |
Acta Otorhinolaryngol Ital
December 2024
Faculty of Medicine and Surgery, University of Enna "Kore", Enna, Italy.
Objectives: Chronic otitis media (COM) is a prevalent condition affecting auditory function. Ossiculoplasty is a known treatment strategy, but its effectiveness concerning the presence of cholesteatoma has not been extensively studied.
Methods: We conducted a multicentre study involving 153 patients diagnosed with COM without cholesteatoma (ncCOM) and with cholesteatoma (cCOM).
J Vis Exp
December 2024
Department of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health;
Single-sided deafness (SSD), where there is severe to profound hearing loss in one ear and normal hearing in the other, is a prevalent auditory condition that significantly impacts the quality of life for those affected. The ability to accurately localize sound sources is crucial for various everyday activities, including speech communication and environmental awareness. In recent years, bone conduction intervention has emerged as a promising solution for patients with SSD, offering a non-invasive alternative to traditional air conduction hearing aids.
View Article and Find Full Text PDFBiophys Rep
December 2024
Life Sciences Institute, University of Michigan, Ann Arbor 48109, USA.
Research using the model organism nematode has greatly facilitated our understanding of sensory biology, including touch, olfaction, taste, vision and proprioception. While hearing had long been considered to be restricted to vertebrates and some arthropods, we recently discovered that is capable of sensing and responding to airborne sound in a frequency and sound source-size-dependent manner. auditory sensation occurs when airborne sound physically vibrates their external cuticle (skin) to activate the sound-sensitive mechanosensory FLP/PVD neurons via nicotinic acetylcholine receptors (nAChRs), triggering aversive phonotaxis behavior.
View Article and Find Full Text PDFJ Morphol
January 2025
Department of Zoology, Denver Museum of Nature & Science, Denver, Colorado, USA.
The barn owl is a common research subject in auditory science due to its exceptional capacity for high frequency hearing and superb sound source localization capabilities. Despite longstanding interest in the auditory performance of barn owls, the function of its middle ear has attracted remarkably little attention. Here, we report the middle ear transfer function measured by laser Doppler vibrometry and direct measurements of inner ear pressures.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2025
Department of Communication Science and Disorders, University of Pittsburgh, Pittsburgh, PA 15213.
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