Yes, grid cells in the hippocampus [0] form a coordinate system that is used for 4D spatiotemporal navigation [1], as well as navigation in abstract high-dime

Yes, grid cells in the hippocampus [0] form a coordinate system that is used for 4D spatiotemporal navigation [1], as well as navigation in abstract high-dimensional "concept space" [2] [0] http://www.scholarpedia.org/article/Grid_cells http://www.scholarpedia.org/article/Grid_cells [1] Time (and space) in the hippocampus https://pubmed.ncbi.nlm.nih.gov/28840180/ https://pubmed.ncbi.nlm.nih.gov/28840180/ [2] Organizing conceptual knowledge in humans with a gridlike code: https://science.sciencemag.org/content/352/6292/1464 https://science.sciencemag.org/content/352/6292/1464