Category: Spatial Memory

How hippocampal activity supports building predictive models by organizing newly learned information according to its congruence with existing memories?

Adam M. P. Miller, Alex D. Jacob, Adam I. Ramsaran, Mitchell L. De Snoo, Sheena A. Josselyn, Paul W. Frankland. Evolution of predictive memory in the hippocampus. bioRxiv 2022.09.08.507204; doi: https://doi.org/10.1101/2022.09.08.507204

Summary
“The brain organizes experiences into memories that …

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How hippocampal astrocytes encode reward location?

Adi Doron, Alon Rubin, Aviya Benmelech-Chovav, Netai Benaim, Tom Carmi, Ron Refaeli, Nechama Novick, Tirzah Kreisel, Yaniv Ziv & Inbal Goshen. Hippocampal astrocytes encode reward location. Nature (2022). https://doi.org/10.1038/s41586-022-05146-6

Abstract
“Astrocytic calcium dynamics has been implicated in the encoding …

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Whether rats can learn spaces just by observation?

Doublet T, Nosrati M and Kentros CG (2022) Social Learning of a Spatial Task by Observation Alone. Front. Behav. Neurosci. 16:902675. doi: 10.3389/fnbeh.2022.902675

Abstact

“Interactions between conspecifics are central to the acquisition of useful memories in the real world. …

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How conjunctive and complementary CA1 hippocampal cell populations relate sensory events to immobility and locomotion?

Samsoon Inayat, Brendan B McAllister, Bruce L McNaughton, Ian Q Whishaw, Majid H Mohajerani. Conjunctive and complementary CA1 hippocampal cell populations relate sensory events to immobility and locomotion. bioRxiv 2022.07.06.498996; doi: https://doi.org/10.1101/2022.07.06.498996

Abstract
The way in which the

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How the brain associate multiple sensory cues with objects and experience?

Scott Waddell, Zeynep Okray, Pedro F Jacob, Ciara Stern, Kieran Desmond, Nils Otto, Paola Vargas-Gutierrez. Multisensory learning binds modality-specific neurons into a cross-modal memory engram. bioRxiv 2022.07.08.499174; doi: https://doi.org/10.1101/2022.07.08.499174

Abstract
Associating multiple sensory cues with objects and experience

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Whether network oscillation occurs in MEC at behavioural time scales in the second-to-minute regime such as spatial navigation and episodic memory?

Soledad Gonzalo Cogno, Horst A. Obenhaus, Ragnhild Irene Jacobsen, Flavio Donato, May-Britt Moser, Edvard I. Moser. Minute-scale oscillatory sequences in medial entorhinal cortex. bioRxiv 2022.05.02.490273; doi: https://doi.org/10.1101/2022.05.02.490273

Abstract
The medial entorhinal cortex (MEC) hosts many of the brain’s

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How does the brain translate experiences into structured knowledge that allows us to navigate to achieve goals?

Corey Fernandez, Jiefeng Jiang, Shao-Fang Wang, Hannah Choi, Anthony D Wagner. Representational integration and differentiation in the human hippocampus following goal-directed navigation. bioRxiv 2022.04.12.488078; doi: https://doi.org/10.1101/2022.04.12.488078

Abstract
“As we learn, dynamic memory processes build structured knowledge across our experiences. …

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How does the hippocampus rapidly consolidates novel information for spatial navigation?

Brad E. Pfeiffer. Spatial learning drives rapid goal representation in hippocampal ripples without place field accumulation or goal-oriented theta sequences. Journal of Neuroscience 8 April 2022, JN-RM-2479-21; DOI: 10.1523/JNEUROSCI.2479-21.2022

Abstract
The hippocampus is critical for rapid acquisition of

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How do hippocampal neurons contribute to memorizing and utilizing information acquired through social observations and interactions?

Mou, Xiang, Abhishekh Pokhrel, Prakul Suresh, and Daoyun Ji. “Observational learning promotes hippocampal remote awake replay toward future reward locations.” Neuron, Volume 110, Issue 5, 2 March 2022, Pages 891-902.e7

Summary
The neural circuit mechanisms underlying observational

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How are hippocampal cognitive maps used and updated flexibly for inference?

Mona M. Garvert, Tankred Saanum, Eric Schulz, Nicolas W. Schuck, Christian F. Doeller. Hippocampal spatio-temporal cognitive maps adaptively guide reward generalization. bioRxiv 2021.10.22.465012; doi: https://doi.org/10.1101/2021.10.22.465012

ABSTRACT
The brain forms cognitive maps of relational knowledge, an organizing principle thought

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Whether are some head direction cells sensitive to magnetic direction in a migratory bird ?

Takahashi, Susumu, Takumi Hombe, Sakiko Matsumoto, Kaoru Ide, and Ken Yoda. “Head direction cells in a migratory bird prefer north.” Science Advances 8, no. 5 (2022): eabl6848.

Abstract
“Animals exhibit remarkable navigation abilities as if they have an …

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How information about spatial landmarks and movement is encoded in the first stage of the hippocampus, the dentate gyrus?

Sebnem N. Tuncdemir, Andres D. Grosmark, Gergely F. Turi, Amei Shank, John C. Bowler, Gokhan Ordek, Attila Losonczy, Rene Hen, Clay O. Lacefield. Parallel processing of sensory cue and spatial information in the dentate gyrus. Cell Reports, Volume 38, …

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How to build a cognitive map?

James C.R. Whittington, David McCaffary, Jacob J.W. Bakermans, Timothy E.J. Behrens.  How to build a cognitive map: insights from models of the hippocampal formation. arXiv:2202.01682 [q-bio.NC], 2022. 

Abstract

“Learning and interpreting the structure of the environment is an innate …

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What is the principle of the functional circuit interactions between LEC and the hippocampus?

Olesia M Bilash, Spyridon Chavlis, Panayiota Poirazi, Jayeeta Basu. Lateral entorhinal cortex inputs modulate hippocampal dendritic excitability by recruiting a local disinhibitory microcircuit. bioRxiv 2022.01.13.476247; doi: https://doi.org/10.1101/2022.01.13.476247

Abstract
The lateral entorhinal cortex (LEC) provides information about multi-sensory environmental

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How are neural representations of space used in the service of both real-world navigation and internal mnemonic processes?

Wenbo Tang and Shantanu P. JadhavMultiple-Timescale Representations of Space: Linking Memory to Navigation. Annual Review of Neuroscience. Vol. 45:- (Volume publication date July 2022). Review in Advance first posted online on December 22, 2021. (Changes may still …

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