Interaction between telencephalic signals and respiratory dynamics in songbirds
Interaction between telencephalic signals and respiratory dynamics in songbirds
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DOI：
10.1152/jn.00646.2011
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发表时间：
2012-06-01
影响因子：
2.5
通讯作者：
Goller, Franz
中科院分区：
文献类型：
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作者：
Mendez, Jorge M.;Mindlin, Gabriel B.;Goller, Franz
Mendez JM、Mindlin GB、Goller F。鸣禽端脑信号与呼吸动力学之间的相互作用。 J Neurophysiol 107: 2971-2983, 2012。首次发表于 2012 年 3 月 7 日； doi:10.1152/jn.00646.2011.-端脑区域影响运动活动的机制在很大程度上尚不清楚。它们可以接管下游电机电路的电机控制，也可以与这些电路的内在动力学相互作用。这两种模型都被提议用于鸟类在学习发声行为期间对呼吸的端脑控制。交互式模型假设来自端脑歌曲控制区域的简单信号足以驱动非线性呼吸网络产生复杂的时间序列。我们通过电刺激端脑鸣叫控制区域并分析斑胸草雀和金丝雀的呼吸模式来测试这一基本假设。我们发现了刺激节律与内在呼吸节律之间相互作用的有力证据，包括自然出现的次谐波行为和侧化端脑输入的整合。我们的实验范式中清晰相互作用的证据表明，端脑声音控制也使用类似的机制。此外，呼吸系统对刺激反应的物种差异与歌曲呼吸模式的差异相似，这表明呼吸节律的交互产生体现在所涉及电路的物种特异性特化中。
Mendez JM, Mindlin GB, Goller F. Interaction between telencephalic signals and respiratory dynamics in songbirds. J Neurophysiol 107: 2971-2983, 2012. First published March 7, 2012; doi:10.1152/jn.00646.2011.-The mechanisms by which telencephalic areas affect motor activities are largely unknown. They could either take over motor control from downstream motor circuits or interact with the intrinsic dynamics of these circuits. Both models have been proposed for telencephalic control of respiration during learned vocal behavior in birds. The interactive model postulates that simple signals from the telencephalic song control areas are sufficient to drive the nonlinear respiratory network into producing complex temporal sequences. We tested this basic assumption by electrically stimulating telencephalic song control areas and analyzing the resulting respiratory patterns in zebra finches and in canaries. We found strong evidence for interaction between the rhythm of stimulation and the intrinsic respiratory rhythm, including naturally emerging subharmonic behavior and integration of lateralized telencephalic input. The evidence for clear interaction in our experimental paradigm suggests that telencephalic vocal control also uses a similar mechanism. Furthermore, species differences in the response of the respiratory system to stimulation show parallels to differences in the respiratory patterns of song, suggesting that the interactive production of respiratory rhythms is manifested in species-specific specialization of the involved circuitry.