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5 resultater
Computational model for vocal tract dynamics in a suboscine bird.
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In a recent work, active use of the vocal tract has been reported for singing oscines. The reconfiguration of the vocal tract during song serves to match its resonances to the syringeal fundamental frequency, demonstrating a precise coordination of the two main pieces of the avian vocal system for
Sexual equality in zebra finch song preference: evidence for a dissociation between song recognition and production learning.
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Song in oscine birds is a culturally inherited mating signal and sexually dimorphic. From differences in song production learning, sex differences in song recognition learning have been inferred but rarely put to a stringent test. In zebra finches, Taeniopygia guttata, females never sing and the
Comparative approaches to avian song system function: insights into auditory and motor processing.
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Many fundamental advances in our understanding of basic neural function have been made using bird song learning and performance as a model system. These advances have included a greater understanding of higher-order neural processing, developmental and hormonal influences on behavior, and the
Frequency modulation during song in a suboscine does not require vocal muscles.
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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
Distribution of aromatase activity in the brain and peripheral tissues of passerine and nonpasserine avian species.
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Many behavioral effects of testosterone on hypothalamic and limbic brain areas are mediated by the action, at the cellular level, of estrogens derived from local testosterone aromatization. Aromatase activity and cells containing the aromatase protein and mRNA have accordingly been identified in the
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