Category: Cognitive Navigation

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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Whether place cells encode the angular and linear position as well as motion direction of a simple stimulus, regardless of self-motion, memory or reward?

Chinmay S. Purandare, Shonali Dhingra, Rodrigo Rios, Cliff Vuong, Thuc To, Ayaka Hachisuka, Krishna Choudhary & Mayank R. Mehta. Moving bar of light evokes vectorial spatial selectivity in the immobile rat hippocampus. Nature (2022). https://doi.org/10.1038/s41586-022-04404-x

Abstract
“Visual cortical neurons …

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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’s the role of the orbitofrontal cortex in creating cognitive maps?

Kauê Machado Costa, Robert Scholz, Kevin Lloyd, Perla Moreno-Castilla, Matthew P.H. Gardner, Peter Dayan, Geoffrey Schoenbaum. The role of the orbitofrontal cortex in creating cognitive maps. bioRxiv 2022.01.25.477716

Abstract
We use internal models of the external world to

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How does the retina construct the distinct neural representations required for diverse behaviors?

Mathew T. Summers, Marla B. Feller. Distinct Inhibitory Pathways Control Velocity and Directional Tuning in the Retina. bioRxiv 2022.01.13.476257; doi: https://doi.org/10.1101/2022.01.13.476257

Abstract
“The sensory periphery is responsible for detecting ethologically relevant features of the external world, using compact, predominantly …

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How does the brain implement planning?

Marcelo G. Mattar, Máté Lengyel. Planning in the brain. Neuron, 2022, https://doi.org/10.1016/j.neuron.2021.12.018.

Summary
“Recent breakthroughs in artificial intelligence (AI) have enabled machines to plan in tasks previously thought to be uniquely human. Meanwhile, the planning algorithms implemented by the

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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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