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Common medial frontal mechanisms of adaptive control in humans and rodents

机译:人类和啮齿动物的适应控制的常见内侧额叶机制

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In this report we describe how common brain networks within the medial frontal cortex (MFC) facilitate adaptive behavioral control in rodents and humans. We demonstrate that after errors, low-frequency oscillations below 12 Hz are modulated over the midfrontal cortex in humans and within the prelimbic and anterior cingulate regions of the MFC in rats. These oscillations were phase locked between the MFC and motor areas in both rats and humans. In rats, single neurons that encoded prior behavioral outcomes were phase coherent with low-frequency field oscillations, particularly after errors. Inactivating the medial frontal regions in rats led to impaired behavioral adjustments after errors, eliminated the differential expression of low-frequency oscillations after errors and increased low-frequency spike-field coupling within the motor cortex. Our results describe a new mechanism for behavioral adaptation through low-frequency oscillations and elucidate how medial frontal networks synchronize brain activity to guide performance.
机译:在本报告中,我们描述了内侧额叶皮层(MFC)中的常见大脑网络如何促进啮齿动物和人类的适应性行为控制。我们证明,错误后,低于12 Hz的低频振荡在人的中额皮质和大鼠MFC的前缘和前扣带区域内被调制。这些振荡在大鼠和人类的MFC和运动区域之间都是锁相的。在大鼠中,编码先前行为结果的单个神经元与低频场振荡具有相位相干性,特别是在错误之后。失活大鼠内侧额叶区域会导致错误后行为调节受损,消除错误后低频振荡的差异表达,并增加运动皮层内的低频尖峰磁场耦合。我们的结果描述了一种通过低频振荡进行行为适应的新机制,并阐明了内侧额叶网络如何同步大脑活动以指导表现。

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