Frequency modulation during song in a suboscine does not require vocal muscles
The physiology of sound production in suboscines is poorly investigated. Suboscines are thought to develop song innately unlike the closely related oscines. Comparing phonatory mechanisms might therefore provide interesting insight into the evolution of vocal learning. Here we investigate sound prod...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00223077_v99_n5_p2383_Amador |
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todo:paper_00223077_v99_n5_p2383_Amador2023-10-03T14:31:02Z Frequency modulation during song in a suboscine does not require vocal muscles Amador, A. Goller, F. Mindlin, G.B. air sac animal behavior animal experiment article bird breathing controlled study denervation frequency modulation motor control nonhuman pressure priority journal singing songbird sound vocalization algorithm animal atmospheric pressure nonlinear system physiology skeletal muscle songbird statistical analysis statistical model stereotypy Air Pressure Algorithms Animals Data Interpretation, Statistical Denervation Models, Statistical Muscle, Skeletal Nonlinear Dynamics Songbirds Stereotyped Behavior Vocalization, Animal The physiology of sound production in suboscines is poorly investigated. Suboscines are thought to develop song innately unlike the closely related oscines. Comparing phonatory mechanisms might therefore provide interesting insight into the evolution of vocal learning. Here we investigate sound production and control of sound frequency in the Great Kiskadee (Pitangus sulfuratus) by recording air sac pressure and vocalizations during spontaneously generated song. In all the songs and calls recorded, the modulations of the fundamental frequency are highly correlated to air sac pressure. To test whether this relationship reflects frequency control by changing respiratory activity or indicates synchronized vocal control, we denervated the syringeal muscles by bilateral resection of the tracheosyringeal nerve. After denervation, the strong correlation between fundamental frequency and air sac pressure patterns remained unchanged. A single linear regression relates sound frequency to air sac pressure in the intact and denervated birds. This surprising lack of control by syringeal muscles of frequency in Kiskadees, in strong contrast to songbirds, poses the question of how air sac pressure regulates sound frequency. To explore this question theoretically, we assume a nonlinear restitution force for the oscillating membrane folds in a two mass model of sound production. This nonlinear restitution force is essential to reproduce the frequency modulations of the observed vocalizations. Copyright © 2008 The American Physiological Society. Fil:Amador, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223077_v99_n5_p2383_Amador |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
air sac animal behavior animal experiment article bird breathing controlled study denervation frequency modulation motor control nonhuman pressure priority journal singing songbird sound vocalization algorithm animal atmospheric pressure nonlinear system physiology skeletal muscle songbird statistical analysis statistical model stereotypy Air Pressure Algorithms Animals Data Interpretation, Statistical Denervation Models, Statistical Muscle, Skeletal Nonlinear Dynamics Songbirds Stereotyped Behavior Vocalization, Animal |
| spellingShingle |
air sac animal behavior animal experiment article bird breathing controlled study denervation frequency modulation motor control nonhuman pressure priority journal singing songbird sound vocalization algorithm animal atmospheric pressure nonlinear system physiology skeletal muscle songbird statistical analysis statistical model stereotypy Air Pressure Algorithms Animals Data Interpretation, Statistical Denervation Models, Statistical Muscle, Skeletal Nonlinear Dynamics Songbirds Stereotyped Behavior Vocalization, Animal Amador, A. Goller, F. Mindlin, G.B. Frequency modulation during song in a suboscine does not require vocal muscles |
| topic_facet |
air sac animal behavior animal experiment article bird breathing controlled study denervation frequency modulation motor control nonhuman pressure priority journal singing songbird sound vocalization algorithm animal atmospheric pressure nonlinear system physiology skeletal muscle songbird statistical analysis statistical model stereotypy Air Pressure Algorithms Animals Data Interpretation, Statistical Denervation Models, Statistical Muscle, Skeletal Nonlinear Dynamics Songbirds Stereotyped Behavior Vocalization, Animal |
| description |
The physiology of sound production in suboscines is poorly investigated. Suboscines are thought to develop song innately unlike the closely related oscines. Comparing phonatory mechanisms might therefore provide interesting insight into the evolution of vocal learning. Here we investigate sound production and control of sound frequency in the Great Kiskadee (Pitangus sulfuratus) by recording air sac pressure and vocalizations during spontaneously generated song. In all the songs and calls recorded, the modulations of the fundamental frequency are highly correlated to air sac pressure. To test whether this relationship reflects frequency control by changing respiratory activity or indicates synchronized vocal control, we denervated the syringeal muscles by bilateral resection of the tracheosyringeal nerve. After denervation, the strong correlation between fundamental frequency and air sac pressure patterns remained unchanged. A single linear regression relates sound frequency to air sac pressure in the intact and denervated birds. This surprising lack of control by syringeal muscles of frequency in Kiskadees, in strong contrast to songbirds, poses the question of how air sac pressure regulates sound frequency. To explore this question theoretically, we assume a nonlinear restitution force for the oscillating membrane folds in a two mass model of sound production. This nonlinear restitution force is essential to reproduce the frequency modulations of the observed vocalizations. Copyright © 2008 The American Physiological Society. |
| format |
JOUR |
| author |
Amador, A. Goller, F. Mindlin, G.B. |
| author_facet |
Amador, A. Goller, F. Mindlin, G.B. |
| author_sort |
Amador, A. |
| title |
Frequency modulation during song in a suboscine does not require vocal muscles |
| title_short |
Frequency modulation during song in a suboscine does not require vocal muscles |
| title_full |
Frequency modulation during song in a suboscine does not require vocal muscles |
| title_fullStr |
Frequency modulation during song in a suboscine does not require vocal muscles |
| title_full_unstemmed |
Frequency modulation during song in a suboscine does not require vocal muscles |
| title_sort |
frequency modulation during song in a suboscine does not require vocal muscles |
| url |
http://hdl.handle.net/20.500.12110/paper_00223077_v99_n5_p2383_Amador |
| work_keys_str_mv |
AT amadora frequencymodulationduringsonginasuboscinedoesnotrequirevocalmuscles AT gollerf frequencymodulationduringsonginasuboscinedoesnotrequirevocalmuscles AT mindlingb frequencymodulationduringsonginasuboscinedoesnotrequirevocalmuscles |
| _version_ |
1807316266165207040 |