Category: Spatial Coordinate System

How egocentric coding properties arise from its presynaptic inputs, and how egocentric cells represent items across different behavioral contexts?

Cheng, Ning, Qiqi Dong, Zhen Zhang, Li Wang, Xiaojing Chen, and Cheng Wang. “Egocentric processing of items in spines, dendrites, and somas in the retrosplenial cortex.” Neuron (2023).

Summary
“Egocentric representations of external items are essential for spatial …

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How navigational systems in the human brain dynamically code for past, present, and future trajectories?

You Cheng, Sam Ling, Chantal E. Stern, Elizabeth R. Chrastil. Navigational systems in the human brain dynamically code for past, present, and future trajectories. bioRxiv 2023.08.22.554387; doi: https://doi.org/10.1101/2023.08.22.554387

Abstract
Navigational trajectory planning requires the interaction of systems that

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How to convert an allocentric goal into an egocentric steering signal?

Peter Mussells Pires, L.F. Abbott, Gaby Maimon. Converting an allocentric goal into an egocentric steering signal. bioRxiv 2022.11.10.516026; doi: https://doi.org/10.1101/2022.11.10.516026

Abstract
Neuronal signals relevant for spatial navigation have been described in many species1–12, however, a circuit-level understanding of

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How the brain process gated transformations from egocentric to allocentric reference frames involving retrosplenial cortex, entorhinal cortex, and hippocampus?

Alexander, A. S., Robinson, J. C., Stern, C. E., & Hasselmo, M. E. (2023). Gated transformations from egocentric to allocentric reference frames involving retrosplenial cortex, entorhinal cortex, and hippocampus. Hippocampus, 1– 23. https://doi.org/10.1002/hipo.23513

Abstract
This paper reviews the

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How egocentric and allocentric reference frames are chosen and interact in navigation tasks, as well as how they are supported by representations in the brain?

Vijayabaskaran S, Cheng S (2022) Navigation task and action space drive the emergence of egocentric and allocentric spatial representations. PLoS Comput Biol 18(10): e1010320. https://doi.org/10.1371/journal.pcbi.1010320

Abstract
In general, strategies for spatial navigation could employ one of two spatial

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How navigation task and action space drive the emergence of egocentric and allocentric spatial representations?

Sandhiya Vijayabaskaran, Sen Cheng. Navigation task and action space drive the emergence of egocentric and allocentric spatial representations. bioRxiv 2022.06.22.497126; doi: https://doi.org/10.1101/2022.06.22.497126

Abstract
“In general, strategies for spatial navigation could employ one of two spatial reference frames: egocentric or …

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How does the human brain encode egocentric spatial maps?

Lukas Kunz, Armin Brandt, Peter C. Reinacher, Bernhard P. Staresina, Eric T. Reifenstein, Christoph T. Weidemann, Nora A. Herweg, Ansh Patel, Melina Tsitsiklis, Richard Kempter, Michael J. Kahana, Andreas Schulze-Bonhage, Joshua Jacobs. A neural code for egocentric spatial maps in

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