Numerical processing in the human parietal cortex during experimental and natural conditions.
Numerical processing in the human parietal cortex during experimental and natural conditions.
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DOI：
10.1038/ncomms3528
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发表时间：
2013
影响因子：
16.6
通讯作者：
Parvizi, Josef
中科院分区：
文献类型：
--
作者：
Dastjerdi, Mohammad;Ozker, Muge;Foster, Brett L.;Rangarajan, Vinitha;Parvizi, Josef
传统上，人类认知是在实验条件下研究的，其中故意消除了自然环境的混杂复杂性。因此，尚不清楚参与特定实验条件的大脑区域如何参与自然条件。在这里，我们使用皮质电图来解决三名植入颅内电极的参与者的这种不确定性，并在实验算术条件下识别顶内沟区域内神经元群的激活。在随后的分析中，我们报告说，当参与社交对话的参与者提及具有数字内容的物体时，相同的顶内沟神经群被激活。我们的原型方法提供了一种方法，既可以探索人类大脑在复杂的社会环境中展开的动力学，又可以根据记录的大脑信号重建自然体验。 认知处理过程中的人类神经元活动通常在实验条件下进行研究，但对自然条件下的活动知之甚少。在这里，作者开发了一种方法来准确表征同一神经元群在两种条件下的活动。
Human cognition is traditionally studied in experimental conditions wherein confounding complexities of the natural environment are intentionally eliminated. Thus, it remains unknown how a brain region involved in a particular experimental condition is engaged in natural conditions. Here we use electrocorticography to address this uncertainty in three participants implanted with intracranial electrodes and identify activations of neuronal populations within the intraparietal sulcus region during an experimental arithmetic condition. In a subsequent analysis, we report that the same intraparietal sulcus neural populations are activated when participants, engaged in social conversations, refer to objects with numerical content. Our prototype approach provides a means for both exploring human brain dynamics as they unfold in complex social settings and reconstructing natural experiences from recorded brain signals. Human neuronal activity during cognitive processing is usually studied under experimental conditions but activity under natural conditions is poorly understood. Here the authors develop a method to accurately characterize the activity of the same neuronal population under both conditions.
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影响因子：
5.3
作者：
Foster, Brett L.;Kaveh, Anthony;Parvizi, Josef
通讯作者：
Parvizi, Josef
影响因子：
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Mulliken GH
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通讯作者：
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