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Hippocampal Place Cells Encode Local Surface-Texture Boundaries by Wang, Chia-Hsuan; Monaco, Joseph D.; Knierim, James J. is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Hippocampal Place Cells Encode Local Surface-Texture Boundaries about?

The cognitive map is often assumed to be a Euclidean map that isometrically represents the real world (i.e., the Euclidean distance between any two locations in the physical world should be preserved on the cognitive map). However, accumulating evidence suggests that environmental boundaries can distort the mental representations of physical space. For example, the distance between two locations can be remembered as longer than the true physical distance if the locations are separated by a boundary. While this overestimation is observed under different experimental conditions, even when the boundary is formed by flat surface cues, its physiological basis is not well understood. We examined the neural representation of flat surface cue boundaries, and of the space segregated by these boundaries, by recording place cell activity from CA1 and CA3 while rats foraged on a circular track or square platforms with inhomogeneous surface textures. About 40% of the place field edges concentrated near the boundaries on the circular track (significantly above the chance level 33%). Similarly, place field edges were more prevalent near boundaries on the platforms than expected by chance. In both

Who reads Hippocampal Place Cells Encode Local Surface-Texture Boundaries?

Author

Wang, Chia-Hsuan; Monaco, Joseph D.; Knierim, James J.

Publisher

Elsevier Science; Elsevier ; Cell Press; Elsevier BV (ISSN 0960-9822)

Published

2020

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)