Functional network topography of the medial entorhinal cortex

Obenhaus, Horst A.; Zong, Weijian; Jacobsen, R. Irene; Rose, Tobias; Donato, Flavio; Chen, Liangyi; Cheng, Heping; Bonhoeffer, Tobias; Moser, May-Britt; Moser, Edvard I.

doi:10.1073/pnas.2121655119

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Functional network topography of the medial entorhinal cortex

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Bonhoeffer, Tobias
Department: Synapses-Circuits-Plasticity / Bonhoeffer, MPI of Neurobiology, Max Planck Society;

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引用

Obenhaus, H. A., Zong, W., Jacobsen, R. I., Rose, T., Donato, F., Chen, L., Cheng, H., Bonhoeffer, T., Moser, M.-B., & Moser, E. I. (2022). Functional network topography of the medial entorhinal cortex. Proceedings of the National Academy of Sciences of the United States of America, 119(7):. doi:10.1073/pnas.2121655119.

引用: https://hdl.handle.net/21.11116/0000-000D-2B89-9

要旨

The medial entorhinal cortex (MEC) creates a map of local space, based on the firing patterns of grid, head-direction (HD), border, and object-vector (OV) cells. How these cell types are organized anatomically is debated. In-depth analysis of this question requires collection of precise anatomical and activity data across large populations of neurons during unrestrained behavior, which neither electrophysiological nor previous imaging methods fully afford. Here, we examined the topographic arrangement of spatially modulated neurons in the superficial layers of MEC and adjacent parasubiculum using miniaturized, portable two-photon microscopes, which allow mice to roam freely in open fields. Grid cells exhibited low levels of co-occurrence with OV cells and clustered anatomically, while border, HD, and OV cells tended to intermingle. These data suggest that grid cell networks might be largely distinct from those of border, HD, and OV cells and that grid cells exhibit strong coupling among themselves but weaker links to other cell types. Copyright © 2022 the Author(s). Published by PNAS.