Conversational Interaction in the Scanner: Mentalizing during Language Processing as Revealed by MEG.
Conversational Interaction in the Scanner: Mentalizing during Language Processing as Revealed by MEG.
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DOI：
10.1093/cercor/bhu116
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发表时间：
2015-09
期刊：
影响因子：
--
通讯作者：
Kessler K
中科院分区：
文献类型：
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作者：
Bögels S;Barr DJ;Garrod S;Kessler K
人类特别擅长从他人的角度来思考，代表他人可能在想什么或经历什么。这种“心智化”的能力在日常的人际互动和对话中很明显。我们用脑磁图研究了它的神经基础。我们关注的是，心智化是否是自发的、例行的，以理解话语的含义，或者主要是按需的，以在期望被违反时恢复“共同点”。参与者与两个邦联发言人中的一个交谈，并就物体的名称达成默契。在随后的“测试”阶段，同一发言者或不同发言者违反了其中一些协议。我们对测试阶段话语的神经处理的分析揭示了与语言（颞叶皮层）、情景记忆（例如，内侧颞叶）和心智化（颞顶叶交界处和腹内侧前额叶皮层）。θ振荡（3-7 Hz）调制最显着，我们观察到功能不同的神经回路之间的相位耦合。情景记忆和语言回路是在对即将到来的指称表达的预期中招募的，这表明上下文敏感的预测是自发产生的。与此相反，心理化领域的招聘需求，作为一种手段，检测和解决感知语用异常，几乎没有证据表明，他们被激活，使合作伙伴特定的预测即将到来的语言话语。
Humans are especially good at taking another's perspective—representing what others might be thinking or experiencing. This “mentalizing” capacity is apparent in everyday human interactions and conversations. We investigated its neural basis using magnetoencephalography. We focused on whether mentalizing was engaged spontaneously and routinely to understand an utterance's meaning or largely on-demand, to restore “common ground” when expectations were violated. Participants conversed with 1 of 2 confederate speakers and established tacit agreements about objects' names. In a subsequent “test” phase, some of these agreements were violated by either the same or a different speaker. Our analysis of the neural processing of test phase utterances revealed recruitment of neural circuits associated with language (temporal cortex), episodic memory (e.g., medial temporal lobe), and mentalizing (temporo-parietal junction and ventromedial prefrontal cortex). Theta oscillations (3–7 Hz) were modulated most prominently, and we observed phase coupling between functionally distinct neural circuits. The episodic memory and language circuits were recruited in anticipation of upcoming referring expressions, suggesting that context-sensitive predictions were spontaneously generated. In contrast, the mentalizing areas were recruited on-demand, as a means for detecting and resolving perceived pragmatic anomalies, with little evidence they were activated to make partner-specific predictions about upcoming linguistic utterances.