Song replay during sleep and computational rules for sensorimotor vocal learning
Song replay during sleep and computational rules for sensorimotor vocal learning
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DOI：
10.1126/science.290.5492.812
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发表时间：
2000-10-27
期刊：
影响因子：
56.9
通讯作者：
Margoliash, D
中科院分区：
文献类型：
--
作者：
Dave, AS;Margoliash, D
鸣禽在发育过程中学习发声运动输出和听觉反馈之间的对应关系。对于成年斑胸草雀的运动皮层类似物中的神经元，我们表明，在睡眠期间播放歌曲引起的活动的时间和结构与白天唱歌时的活动相匹配。运动活动导致音节，而匹配的感觉反应通常取决于前面三个音节的序列。因此，感觉运动对应反映在时间上精确的活动模式的单个神经元，使用长感觉记忆来预测音节序列。此外，这些神经元在睡眠期间的“自发”活动与它们的感觉运动活动相匹配，感觉运动活动是歌曲“重放”的一种形式。这些数据表明了一种模型，其中感觉运动对应性在唱歌期间被存储，但不改变行为，并且离线比较（例如，在睡眠期间），使用排练的运动输出和预测的感觉反馈来自适应地形成运动输出。
Songbirds Learn a correspondence between vocal-motor output and auditory feedback during development. For neurons in a motor cortex analog of adult zebra finches, we show that the timing and structure of activity elicited by the playback of song during sleep matches activity during daytime singing. The motor activity leads syllables, and the matching sensory response depends on a sequence of typically up to three of the preceding syllables. Thus, sensorimotor correspondence is reflected in temporally precise activity patterns of single neurons that use Long sensory memories to predict syllable sequences. Additionally, "spontaneous" activity of these neurons during sleep matches their sensorimotor activity, a form of song "replay," These data suggest a model whereby sensorimotor correspondences are stored during singing but do not modify behavior, and off-line comparison (e,g., during sleep) of rehearsed motor output and predicted sensory feedback is used to adaptively shape motor output.