Laryngeal nerve activity during pulse emission in the CF-FM bat,Rhinolophus ferrumequinum |
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Authors: | Rudolf Rübsamen Gerd Schuller |
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Institution: | (1) Arbeitskreis Neuro- und Rezeptorphysiologie, Fachbereich Biologie der J.W. Goethe-Universität, D-6000 Frankfurt/Main, Federal Republic of Germany |
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Abstract: | Summary The activity of the external (motor) branch of the superior laryngeal nerve (SLN), innervating the cricothyroid muscle, was recorded in the greater horseshoe bat,Rhinolophus ferrumequinum. The bats were induced to change the frequency of the constant frequency (CF) component of their echolocation signals by presenting artificial signals for which they Doppler shift compensated. The data show that the SLN discharge rate and the frequency of the emitted CF are correlated in a linear manner.Abbreviations
SLN
Superior laryngeal nerve
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RLN
Recurrent laryngeal nerve
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DCS
Doppler compensation system
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CF
Constant frequency
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FM
Frequency modulation
Supported by grants of the Deutsche Forschungsgemeinschaft (DFG), Az.: Schu 390/1, /2 and SFB 45We are indebted to Dipl.-Ing. H. Zöller for providing the computer programs. We want to thank H. Hahn and A. Polotzek for technical help. |
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