Researchers have found a way to reduce spatial aliasing in hippocampal place representations by incorporating grid cell signals. Spatial aliasing occurs when multiple locations produce similar place-cell representations due to environmental symmetry or repetitive structures. By combining boundary vector cell inputs with grid cells, the team achieved a 94-99% reduction in spatial aliasing across three environments. Grid cells provide periodic, internally generated spatial signals that help disambiguate perceptually identical locations. --- Why it matters: This work matters for researchers studying hippocampal place representations because it provides a new method to improve the reliability of these representations in geometrically ambiguous environments. Source: https://arxiv.org/abs/2608.18569