Dynamical self-organization and efficient representation of space by grid cells.

Dynamical self-organization and efficient representation of space by grid cells.
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DOI:
10.1016/j.conb.2021.11.007
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发表时间:
2021-10
影响因子:
5.7
通讯作者:
Balasubramanian V
Balasubramanian V
中科院分区:
医学2区
文献类型:
--
作者:
DiTullio RW;Balasubramanian V

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为了规划轨迹和导航,动物必须保持对环境及其自身位置的心理表征,这种“认知地图”被认为部分受到内嗅皮层的支持,当动物占据一个封闭空间中周期性位置网格的缩放层次结构的顶点时,内嗅皮层的网格细胞就会活跃起来。在这里,我们回顾计算的发展,这表明网格细胞网络是:(a)高效,提供所需的空间分辨率与最小数量的神经元,(B)自组织,动态协调的结构和规模的反应,和(c)自适应,重新组织响应地标和结构的边界的空间的变化。我们认为这些想法在最近发现的类似结构的心理表征的抽象空间的形状和气味,并在其他大脑区域,并强调有前途的方向,为未来的研究。
To plan trajectories and navigate, animals must maintain a mental representation of the environment and their own position within it. This “cognitive map” is thought to be supported in part by the entorhinal cortex, where grid cells are active when an animal occupies the vertices of a scaling hierarchy of periodic lattices of locations in an enclosure. Here, we review computational developments which suggest that the grid cell network is: (a) efficient, providing required spatial resolution with a minimum number of neurons, (b) self-organizing, dynamically coordinating the structure and scale of the responses, and (c) adaptive, re-organizing in response to changes in landmarks and the structure of the boundaries of spaces. We consider these ideas in light of recent discoveries of similar structures in the mental representation of abstract spaces of shapes and smells, and in other brain areas, and highlight promising directions for future research.
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