| Veselka et al. reply. | |
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MedLine Citation:
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PMID: 20724992 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Replying to: U. Wittrock 466, 10.1038/nature09156 (2010)Wittrock suggests that a stylohyal-tympanic connection in laryngeally echolocating bats as the one described in our studycould transmit laryngeal vibrations to both ears. This could represent a 'local oscillator', forming part of a heterodyne-like detection system for precise target detection and localization. The essence of this exciting idea is that the externally transmitted echo (signal of interest) received by the ears would be mixed (multiplied) with an internally transmitted copy of the outgoing biosonar sound (reference signal) via vibrations of the stylohyal. The multiplicative mixing would generate two new signals-one at the sum and the other at the difference of the original inputs-and after low-pass filtering the remaining components would include a difference frequency signal that varied in its rate of amplitude modulation (AM). |
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Authors:
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Nina Veselka; David D McErlain; David W Holdsworth; Judith L Eger; Rethy K Chhem; Matthew J Mason; Kirsty L Brain; Paul A Faure; M Brock Fenton |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Nature Volume: 466 ISSN: 1476-4687 ISO Abbreviation: Nature Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0410462 Medline TA: Nature Country: England |
Other Details:
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Languages: eng Pagination: E7 Citation Subset: IM |
Affiliation:
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Department of Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario N6A 5B7, Canada. bfenton@uwo.ca. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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