Department of Psychology and Brain Sciences, Dartmouth College, Hanover, NH, USA.
Psychology, School of Philosophy, Psychology, and Language Sciences, University of Edinburgh, Edinburgh, EH8 9JZ, UK.
Nat Commun. 2021 May 11;12(1):2632. doi: 10.1038/s41467-021-22848-z.
The neural systems supporting scene-perception and spatial-memory systems of the human brain are well-described. But how do these neural systems interact? Here, using fine-grained individual-subject fMRI, we report three cortical areas of the human brain, each lying immediately anterior to a region of the scene perception network in posterior cerebral cortex, that selectively activate when recalling familiar real-world locations. Despite their close proximity to the scene-perception areas, network analyses show that these regions constitute a distinct functional network that interfaces with spatial memory systems during naturalistic scene understanding. These "place-memory areas" offer a new framework for understanding how the brain implements memory-guided visual behaviors, including navigation.
人类大脑中支持场景感知和空间记忆系统的神经回路已经得到了很好的描述。但是这些神经回路是如何相互作用的呢？在这里，我们使用高分辨率的个体 fMRI 数据，报告了人类大脑中的三个皮质区域，每个区域都位于大脑后皮质中场景感知网络的一个区域的正前方，当回忆熟悉的真实世界位置时，这些区域会选择性地激活。尽管它们与场景感知区域非常接近，但网络分析表明，这些区域构成了一个独特的功能网络，在自然场景理解过程中与空间记忆系统相互作用。这些“位置记忆区域”为理解大脑如何实现记忆引导的视觉行为，包括导航，提供了一个新的框架。
