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Broca's Area in Language, Action, and Music

机译：Broca的语言领域，行动和音乐

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The work of Paul Broca has been of pivotal importance in the localization of some higher cognitive brain functions. He first reported that lesions to the caudal part of the inferior frontal gyrus were associated with expressive deficits. Although most of his claims are still true today, the emergence of novel techniques as well as the use of comparative analyses prompts modern research for a revision of the role played by Broca's area. Here we review current research showing that the inferior frontal gyrus and the ventral premotor cortex are activated for tasks other than language production. Specifically, a growing number of studies report the involvement of these two regions in language comprehension, action execution and observation, and music execution and listening. Recently, the critical involvement of the same areas in representing abstract hierarchical structures has also been demonstrated. Indeed, language, action, and music share a common syntactic-like structure. We propose that these areas are tuned to detect and represent complex hierarchical dependencies, regardless of modality and use. We speculate that this capacity evolved from motor and premotor functions associated with action execution and understanding, such as those characterizing the mirror-neuron system.
机译：保罗布罗卡的工作在一些更高的认知大脑功能的本地化方面具有重要意义。他首先报告说，初级前回物的尾部的病变与表达赤字有关。虽然他的大多数索赔今天仍然存在，但新颖技术的出现以及比较分析的使用促使现代研究修订了Broca地区所扮演的作用。在这里，我们审查了目前的研究表明，除了语言生产之外的任务激活了较差的额相回归和腹侧热敏皮质。具体而言，越来越多的研究报告了这两个地区在语言理解，行动执行和观察中的参与，以及音乐执行和听力。最近，还证明了相同领域的临界参与摘要层次结构。实际上，语言，动作和音乐共享一个常见的句法结构。我们建议调整这些区域以检测和代表复杂的分层依赖项，无论模态和使用如何。我们推测，这种容量从与动作执行和理解相关的电机和热量函数演变，例如镜像 - 神经元系统的那些。

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