Department of Psychology, Queens University, Kingston, Ontario, Canada.
McConnell Brain Imaging Centre, McGill University, Montreal, Quebec, Canada.
Nat Rev Neurosci. 2021 Aug;22(8):503-513. doi: 10.1038/s41583-021-00474-4. Epub 2021 Jul 5.
The default mode network (DMN) is a set of widely distributed brain regions in the parietal, temporal and frontal cortex. These regions often show reductions in activity during attention-demanding tasks but increase their activity across multiple forms of complex cognition, many of which are linked to memory or abstract thought. Within the cortex, the DMN has been shown to be located in regions furthest away from those contributing to sensory and motor systems. Here, we consider how our knowledge of the topographic characteristics of the DMN can be leveraged to better understand how this network contributes to cognition and behaviour.
默认模式网络（DMN）是顶叶、颞叶和额叶皮层中广泛分布的一组脑区。这些区域在注意力任务中通常表现出活动减少，但在多种形式的复杂认知中增加活动，其中许多与记忆或抽象思维有关。在皮层中，DMN 被发现在距离对感觉和运动系统有贡献的区域最远的区域。在这里，我们考虑如何利用我们对 DMN 的地形特征的了解来更好地理解这个网络如何促进认知和行为。
