Document Detail


Experiments on the mechanism of underwater hearing.
MedLine Citation:
PMID:  21888565     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Conclusion: The findings suggest that underwater sound perception is realized by the middle ear rather than by bone conduction, at least in shallow water conditions. Objective: To prove whether underwater sound perception is effected by bone conduction or by conduction via the middle ear. Methods: Five divers, breathing through snorkels, were tested in a swimming pool, to determine whether a sound was louder when the acoustic source placed was in front of the head in comparison with a lateral application facing the ear region. The second experiment investigated whether sound perception is influenced by ear protection plugs in underwater conditions. Also, the effect of a 5 mm thick neoprene hood was determined, with and without an additional perforation in the ear region. Results: Sounds were louder when applied from a position laterally facing the ear, louder without than with a protection plug, louder without than with a neoprene hood on, and louder when the neoprene hood had a perforation in the region of the ear than with an intact hood.
Authors:
Hans Wilhelm Pau; Mareike Warkentin; Olaf Specht; Helga Krentz; Anne Herrmann; Karsten Ehrt
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-5
Journal Detail:
Title:  Acta oto-laryngologica     Volume:  -     ISSN:  1651-2251     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370354     Medline TA:  Acta Otolaryngol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery.
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