Here, we tested the respective contributions of primate premotor and prefrontal cortex to support vocal behavior. We applied a model-based generalized linear model (GLM) analysis that better accounts for the inherent variance in natural, continuous behaviors to characterize the activity of neurons throughout the frontal cortex as freely moving marmosets engaged in conversational exchanges. While analyses revealed functional clusters of neural activity related to the different processes involved in the vocal behavior, these clusters did not map to subfields of prefrontal or premotor cortex, as has been observed in more conventional task-based paradigms. Our results suggest a distributed functional organization for the myriad neural mechanisms underlying natural social interactions and have implications for our concepts of the role that frontal cortex plays in governing ethological behaviors in primates.

中文翻译：

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代表额叶皮层中自然狨猴发声行为的动态


在这里，我们测试了灵长类动物前运动和前额叶皮层对支持发声行为的各自贡献。我们应用了基于模型的广义线性模型 （GLM） 分析，该分析更好地解释了自然、连续行为的固有方差，以将整个额叶皮层的神经元活动描述为自由移动的狨猴进行对话交流。虽然分析揭示了与发声行为所涉及的不同过程相关的神经活动功能集群，但这些集群并没有映射到前额叶或前运动皮层的子领域，就像在更传统的基于任务的范式中观察到的那样。我们的结果表明，自然社交互动背后的无数神经机制存在分布式功能组织，并对我们关于额叶皮层在控制灵长类动物行为学行为中的作用的概念具有影响。