How direct cortical inputs to hippocampal area CA1 transmit complementary signals for goal-directed navigation?

John C Bowler, Attila Losonczy. Direct Cortical Inputs to Hippocampal Area CA1 Transmit Complementary Signals for Goal-directed Navigation. bioRxiv 2022.11.10.516009; doi: https://doi.org/10.1101/2022.11.10.516009

Summary
“The entorhinal cortex (EC) is central to the brain’s navigation system. Its subregions are conventionally thought …

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How does the brain transform a head direction signal into a goal-oriented steering command?

Elena A. Westeinde, Emily Kellogg, Paul M. Dawson, Jenny Lu, Lydia Hamburg, Benjamin Midler, Shaul Druckmann, Rachel I. Wilson. Transforming a head direction signal into a goal-oriented steering command. bioRxiv 2022.11.10.516039; doi: https://doi.org/10.1101/2022.11.10.516039

Abstract
To navigate, we must

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When and why grid cells appear or not in trained path integrators?

Ben Sorscher, Gabriel C Mel, Aran Nayebi, Lisa Giocomo, Daniel Yamins, Surya Ganguli. When and why grid cells appear or not in trained path integrators. bioRxiv 2022.11.14.516537; doi: https://doi.org/10.1101/2022.11.14.516537

Abstract
“Recent work has claimed that the emergence of grid …

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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 entorhinal cortex directs learning-related changes in CA1 representations?

Christine Grienberger, Jeffrey C. Magee. Entorhinal cortex directs learning-related changes in CA1 representations. Nature (2022). https://doi.org/10.1038/s41586-022-05378-6

Abstract
Learning-related changes in brain activity are thought to underlie adaptive behaviours1,2. For instance, the learning of a reward site by …

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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 to integrate new memories into the hippocampal network activity space?

Gava, G.P., McHugh, S.B., Lefèvre, L. et al. Integrating new memories into the hippocampal network activity space. Nat Neurosci 24, 326–330 (2021). https://doi.org/10.1038/s41593-021-00804-w

Abstract
“By investigating the topology of neuronal co-activity, we found that mnemonic information spans multiple operational …

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