Category: Spatial Memory

Whether, and how, replay supports both future planning and preserving memories of the past?

G. Elliott Wimmer, Yunzhe Liu, Daniel C. McNamee, and Raymond J. Dolan. Distinct replay signatures for prospective decision-making and memory preservation. PNAS, 120 (6) e2205211120, 2023. 

Significance
The sequential neural reactivation of prior experience, known as replay, is

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How episodic memories are stored within brains?

Sachin P Vaidya, Raymond A Chitwood, Jeffrey C Magee. The formation of an expanding memory representation in the hippocampus. bioRxiv 2023.02.01.526663; doi: https://doi.org/10.1101/2023.02.01.526663

Abstract
How episodic memories are stored within brains is poorly understood. While certain memory-retaining

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Do artificial intelligence (AI) agents learn to build internal spatial representations (or ‘mental’ maps) of their environment as a natural consequence of learning to navigate?

Erik Wijmans, Manolis Savva, Irfan Essa, Stefan Lee, Ari S. Morcos, Dhruv Batra. Emergence of Maps in the Memories of Blind Navigation Agents. arXiv:2301.13261 [cs.AI], 2023. 

Abstact
“Animal navigation research posits that organisms build and maintain internal spatial representations, …

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How navigation and memory processes interact in humans?

Thomas Schreiner, Benjamin J. Griffiths, Merve Kutlu, Christian Vollmar, Elisabeth Kaufmann, Stefanie Quach, Jan Remi, Soheyl Noachtar, Tobias Staudigl. Memory reactivation of real-world spatial orientation revealed by human electrophysiology. bioRxiv 2023.01.27.525854; doi: https://doi.org/10.1101/2023.01.27.525854

Abstract
Spatial navigation and memory

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How the hippocampus incorporates new contextual information into a previously formed and stabilized spatial representation?

Jake Ormond, Simon A. Serka, Joshua P. Johansen. Enhanced reactivation of remapping place cells during aversive learning. Journal of Neuroscience 3 January 2023, JN-RM-1450-22; DOI: 10.1523/JNEUROSCI.1450-22.2022

Abstract
Study of the hippocampal place cell system has greatly enhanced our

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How does the cortex retrieve episodic memories from the hippocampus during memory consolidation?

HaoRan Chang, Ingrid M. Esteves, Adam R. Neumann, Majid H. Mohajerani, Bruce L. McNaughton. Cortical Reactivation of Non-Spatial and Spatial Memory Representations Coordinate with Hippocampus to Form a Memory Dialogue. bioRxiv 2022.12.16.520658; doi: https://doi.org/10.1101/2022.12.16.520658

Abstract
“Episodic memory depends on …

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How dopamine promotes head direction plasticity during orienting movements?

Yvette E. Fisher, Michael Marquis, Isabel D’Alessandro& Rachel I. Wilson. Dopamine promotes head direction plasticity during orienting movements. Nature (2022). https://doi.org/10.1038/s41586-022-05485-4

Abstract
In neural networks that store information in their connection weights, there is a tradeoff between sensitivity

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