This paper says nothing about the “brain’s navigation system”. It is focused on the distribution of cone photoreceptors in the retina.
They are indeed organized in a hexagonal mosaic, and the authors present a new method to estimate spatial distribution of said cones, showing that there are anisotropies, with the cones having a larger local spacing along the horizontal axis.
Not saying this isn’t an interesting topic a but it’s not the best source to illustrate it.
This paper says nothing about the “brain’s navigation system”. It is focused on the distribution of cone photoreceptors in the retina.
They are indeed organized in a hexagonal mosaic, and the authors present a new method to estimate spatial distribution of said cones, showing that there are anisotropies, with the cones having a larger local spacing along the horizontal axis.
Not saying this isn’t an interesting topic a but it’s not the best source to illustrate it.
there was a second reference link for navigation piece:
https://ieeexplore.ieee.org/document/1598543
i took both links from this paper
https://richard.science/sci/2019_barnes_dgg_published.pdf