Subharmonics in the solutions of a model of the song motor nuclei in songbirds

Songbirds produce their vocalizations by means of a vocal organ called syrinx. A relatively small number of parameters are cyclically changed in order to produce a song. These time-dependent parameters are generated by a set of hierarchically organized neural nuclei. In this work we use theoretical...

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Autores principales: Jercog, P.E., Trevisan, M.A., Mindlin, G.B.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03784371_v356_n1_p145_Jercog
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Sumario:Songbirds produce their vocalizations by means of a vocal organ called syrinx. A relatively small number of parameters are cyclically changed in order to produce a song. These time-dependent parameters are generated by a set of hierarchically organized neural nuclei. In this work we use theoretical tools in order to test the hypothesis that some aspects of the phrase structure in a song can be the result of the nonlinear response of some of these nuclei to a basic regular syllabic oscillation. We propose simple rate models for the activities displayed by the nuclei and inspect their dynamics. © 2005 Elsevier B.V. All rights reserved.