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Self-organizing non-Euclidean representations in the brain

Self-organizing non-Euclidean representations in the brain

This video was recorded at Kolokviji na Institutu "Jožef Stefan". In 2005, so-called grid cells have been discovered in the rodent brain. With their activity, grid cells express a remarkably regular metric tessellation of a flat surface - a triangular grid. Their spiking activity is concentrated when the animal is at the nodes of an imaginary grid, different from neuron to neuron. Later found also in crawling bats, it is not clear yet whether in flying bats grid units will provide a regular 3D tiling - such as a face-cubic-centered or hexagonal-close-packed arrangement. Most computational models of this phenomenon are based on various forms of wiring instructions, whereas we have been analyzing a model that demonstrates how grid units can spontaneously self-organize during animal... Show More


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