人类额顶叶和顶叶-海马体通路在多个空间参照系中代表行为优先级。
Human fronto-parietal and parieto-hippocampal pathways represent behavioral priorities in multiple spatial reference frames.
作者信息
Szczepanski Sara M, Saalmann Yuri B
机构信息
Helen Wills Neuroscience Institute; University of California; Berkeley, Berkeley, CA USA.
Department of Psychology, University of Wisconsin-Madison; Madison, WI USA.
出版信息
Bioarchitecture. 2013 Sep-Dec;3(5):147-52. doi: 10.4161/bioa.27462. Epub 2013 Dec 9.
We represent behaviorally relevant information in different spatial reference frames in order to interact effectively with our environment. For example, we need an egocentric (e.g., body-centered) reference frame to specify limb movements and an allocentric (e.g., world-centered) reference frame to navigate from one location to another. Posterior parietal cortex (PPC) is vital for performing transformations between these different coordinate systems. Here, we review evidence for multiple pathways in the human brain, from PPC to motor, premotor, and supplementary motor areas, as well as to structures in the medial temporal lobe. These connections are important for transformations between egocentric reference frames to facilitate sensory-guided action, or from egocentric to allocentric reference frames to facilitate spatial navigation.
我们在不同的空间参考系中表征与行为相关的信息，以便与环境进行有效互动。例如，我们需要一个以自我为中心（如以身体为中心）的参考系来指定肢体运动，以及一个以他者为中心（如以世界为中心）的参考系来从一个位置导航到另一个位置。顶叶后皮质（PPC）对于在这些不同坐标系之间进行转换至关重要。在这里，我们综述了人类大脑中从PPC到运动区、运动前区和辅助运动区，以及到内侧颞叶结构的多条通路的证据。这些连接对于以自我为中心的参考系之间的转换以促进感觉引导的行动，或从以自我为中心到以他者为中心的参考系的转换以促进空间导航很重要。
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