Tag: Hippocampus

How do place cells and grid cells represent position across multiple environments with joint attractor dynamics?

Agmon, Haggai, and Yoram Burak. “A theory of joint attractor dynamics in the hippocampus and the entorhinal cortex accounts for artificial remapping and grid cell field-to-field variability.” eLife 9 (2020): e56894.

The representation of position in

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How spatial information is dynamically reactivated in sub-regions of the human MTL and how this reactivation guides recall of episodic information

Nora A. Herweg, Ashwini D. Sharan, Michael R. Sperling, Armin Brandt, Andreas Schulze-Bonhage and Michael J. Kahana. Reactivated spatial context guides episodic recall. Journal of Neuroscience 23 January 2020, 1640-19; DOI: https://doi.org/10.1523/JNEUROSCI.1640-19.2019

“The medial temporal lobe (MTL) is …

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How does the primate hippocampus represent objects and space during virtual navigation?

Gulli, Roberto A., Lyndon R. Duong, Benjamin W. Corrigan, Guillaume Doucet, Sylvain Williams, Stefano Fusi, and Julio C. Martinez-Trujillo. “Context-dependent representations of objects and space in the primate hippocampus during virtual navigation.” Nature Neuroscience 23, no. 1 (2020): …

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How the brain represent allocentric (map-based) vectors to boundaries, objects, and goals?

Steven Poulter, Sang Ah Lee, James Dachtler, Thomas J. Wills, Colin Lever. Vector Trace cells in the Subiculum of the Hippocampal formation. bioRxiv 805242; doi: https://doi.org/10.1101/805242

Successfully navigating in physical or semantic space requires a neural representation

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How abstract and discrete relational structures are represented, combined, and navigated in the human brain?

Seongmin A. Park, Douglas S. Miller, Hamed Nili, Charan Ranganath, Erie D. Boorman. Map making: Constructing, combining, and navigating abstract cognitive maps. bioRxiv 810051; doi: https://doi.org/10.1101/810051

Cognitive maps are thought to enable model-based inferences from limited experience

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How hippocampus adds time to episodic memories?

Cox, Brittney M., Conor D. Cox, Benjamin G. Gunn, Aliza A. Le, Victoria C. Inshishian, Christine M. Gall, and Gary Lynch. “Acquisition of temporal order requires an intact CA3 commissural/associational (C/A) feedback system in mice.” Communications Biology 2, no. 1 …

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Whether hippocampal spatial coding principles also provide a universal metric for the organization of non-spatial information?

The latest investigation by Theves et al. 2019  revealed the hippocampus encodes distances in multidimensional feature space.

• The hippocampus encodes distances in multidimensional feature space
• Converging evidence from multivoxel pattern and fMRI adaptation analyses
• Results suggest …

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