Adult birdsong is actively maintained by error correction.
Adult birdsong is actively maintained by error correction.
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DOI：
10.1038/nn.2336
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发表时间：
2009-07
影响因子：
25
通讯作者：
Brainard, Michael S.
中科院分区：
文献类型：
--
作者：
Sober, Samuel J.;Brainard, Michael S.
人类通过模仿声音来学习说话，这需要听觉反馈。同样，幼鸟在学习模仿成年鸟的歌声时也依赖于听觉反馈，这是为数不多的非人类声乐学习的例子之一。然而，尽管人类在成年后继续使用听觉反馈来纠正声音错误，但成年鸟叫声稳定性的机制尚不清楚。研究表明，与人类语言一样，成年鸟的鸣叫也是通过纠错来维持的。我们使用定制设计的耳机干扰成年孟加拉雀听觉反馈的音高（基频）。鸟类通过调整歌声的音高来补偿强加的听觉误差。当扰动消除后，螺距恢复到基线。这些结果表明，成年鸟类通过比较听觉反馈和感官目标来纠正发声错误，并表明终身错误纠正是习得发声行为的一般原则。
Humans learn to speak by a process of vocal imitation that requires the availability of auditory feedback. Similarly, young birds rely on auditory feedback when learning to imitate the songs of adult birds, providing one of the few examples of nonhuman vocal learning. However, whereas humans continue to use auditory feedback to correct vocal errors in adulthood, the mechanisms underlying the stability of adult birdsong are unknown. Here we show that like human speech, adult birdsong is maintained by error correction. We perturbed the pitch (fundamental frequency) of auditory feedback in adult Bengalese finches using custom-designed headphones. Birds compensated for the imposed auditory error by adjusting the pitch of song. When the perturbation was removed, pitch returned to baseline. These results show that adult birds correct vocal errors by comparing auditory feedback to a sensory target and suggest that lifelong error correction is a general principle of learned vocal behavior.
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影响因子：
25
作者：
Sober, SJ;Sabes, PN
通讯作者：
Sabes, PN
影响因子：
64.8
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Tumer, Evren C.;Brainard, Michael S.
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Brainard, Michael S.
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Doupe, AJ
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