Category: Episodic Memory

How hippocampal system neurons encode views for memory and navigation in different species?

Hippocampus Special Issue:Hippocampal System Neurons Encoding Views in Different Species
Issue Edited by: Edmund Rolls, Sylvia Wirth , May 2023

“The aim of this Special Issue of Hippocampus (2023) is to bring together papers that address view representations in the

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Whether or how the brain flexibly represents information about different event components at encoding and during remembering?

Reagh, Z.M., Ranganath, C. Flexible reuse of cortico-hippocampal representations during encoding and recall of naturalistic events. Nat Commun 14, 1279 (2023). https://doi.org/10.1038/s41467-023-36805-5

Abstract
“Although every life event is unique, there are considerable commonalities across events. However, little is known

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How the cognitive map is recalled and how the manipulation of distances and directions occurs within the cognitive map?

Teixeira De Almeida, M., Faulmann, I., Seeber, M., Gschwend, K., Maurer, R., & Burra, N. 2023. Electrophysiological correlates of distance and direction processing during cognitive map retrieval: A source analysis. Frontiers in Human Neuroscience, 17, 42.

The aim

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How new learning affects a previously acquired spatial memory representation?

Samuel J Levy, Michael E Hasselmo. Hippocampal remapping induced by new behavior is mediated by spatial context. bioRxiv 2023.02.20.529330; doi: https://doi.org/10.1101/2023.02.20.529330

Abstract
“The hippocampus plays a central role in episodic memory and spatial navigation. Hippocampal neurons form unique representational

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How the brain avoid systematic erasing of previously encoded memories?

Irene Navarro-Lobato, Adrian Aleman-Zapata, Anumita Samanta, Milan Bogers, Shekhar Narayanan, Abdelrahman Rayan, Alejandra Alonso, Jacqueline van der Meij, Mehdi Khamassi, Zafar Khan, Lisa Genzel. Learning Fast and Slow: Increased cortical plasticity leads to memory interference and enhanced hippocampal-cortical interactions. …

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How unique and predictable elements of memories are stored and reconstructed by efficiently combining both hippocampal and neocortical systems?

Eleanor Spens, Neil Burgess. A Generative Model of Memory Construction and Consolidation. bioRxiv 2023.01.19.524711; doi: https://doi.org/10.1101/2023.01.19.524711

Abstract
“Human episodic memories are (re)constructed, combining unique features with schema-based predictions, and share neural substrates with imagination. They also show systematic schema-based …

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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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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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Whether associative memory involves precisely timed spiking of neurons in the medial temporal lobes that exhibit stimulus-specific tuning?

Lukas Kunz, Bernhard P Staresina, Peter C Reinacher, Armin Brandt, Tim A Guth, Andreas Schulze-Bonhage, Joshua Jacobs. Ripple-locked coactivity of stimulus-specific neurons supports human associative memory. bioRxiv 2022.10.17.512635; doi: https://doi.org/10.1101/2022.10.17.512635

Abstract
Associative memory is the ability to encode

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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 does the hippocampus and its constituent pathways support novel category learning?

Jelena Sučević, Anna C. Schapiro. A neural network model of hippocampal contributions to category learning. bioRxiv 2022.01.12.476051; doi: https://doi.org/10.1101/2022.01.12.476051

Abstract
“In addition to its critical role in encoding individual episodes, the hippocampus is capable of extracting regularities across 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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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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