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首页> 外文期刊>Journal of Neurophysiology >Functionally distinct language and Theory of Mind networks are synchronized at rest and during language comprehension
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Functionally distinct language and Theory of Mind networks are synchronized at rest and during language comprehension

机译：功能性独特的语言和心态网络在休息和语言理解期间同步

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Communication requires the abilities to generate and interpret utterances and to infer the beliefs, desires, and goals of others ("Theory of Mind"; ToM). These two abilities have been shown to dissociate: individuals with aphasia retain the ability to think about others' mental states; and individuals with autism are impaired in social reasoning, but their basic language processing is often intact. In line with this evidence from brain disorders, functional MRI (fMRI) studies have shown that linguistic and ToM abilities recruit distinct sets of brain regions. And yet, language is a social tool that allows us to share thoughts with one another. Thus, the language and ToM brain networks must share information despite being implemented in distinct neural circuits. Here, we investigated potential interactions between these networks during naturalistic cognition using functional correlations in fMRI. The networks were functionally defined in individual participants, in terms of preference for sentences over nonwords for language, and for belief inference over physical-event processing for ToM, with both a verbal and a nonverbal paradigm. Although, across experiments, interregion correlations within each network were higher than between-network correlations, we also observed above-baseline synchronization of blood oxygenation level-dependent signal fluctuations between the two networks during rest and story comprehension. This synchronization was functionally specific: neither network was synchronized with the executive control network (functionally defined in terms of preference for a harder over easier version of an executive task). Thus, coordination between the language and ToM networks appears to be an inherent and specific characteristic of their functional architecture.
机译：通讯需要的能力产生和解释话语和推断的信念，欲望，和其他的目标（“心智理论”; TOM）。这两个能力已被证明离解：患有失语症的个体保留去想别人的心理状态的能力;与患有自闭症的个人受损的社会推理，但它们的基本语言处理往往是完好的。在与脑部疾病这方面的证据线，功能性磁共振成像（fMRI）的研究表明，语言和汤姆能力招募组不同的大脑区域。然而，语言是一种社交工具，使我们能够分享彼此的想法。因此，语言和汤姆大脑网络必须，尽管在不同的神经回路中实现信息共享。在这里，我们使用功能磁共振成像功能的相关性研究自然的认知过程中，这些网络之间潜在的相互作用。该网络中各个参与者职能明确，优先用于句子在非词的语言方面，而对于信仰推理过物理的事件处理的汤姆，既有口头和非语言的范例。虽然，横跨实验，每个网络内区域间的相关性比网络间的相关性较高，我们还休息和故事理解期间观察到的两个网络之间的血氧水平依赖性信号波动的上述基准同步。这种同步是功能特定的：既不网络与执行控制网络（以优先方面功能上定义为执行任务的更硬的过更容易版本）同步。因此，语言和Tom网络之间的协调似乎是它们的功能架构的固有和特定特征。

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