Geometric model manifold of space, time, and belief in hippocampal cognitive maps
Jason Kim, James Sethna, Itai Cohen, Weinan Sun · COSYNE 2025
Cognitive maps are mental representations of spatial and conceptual relationships in an environment. The hippocampus, a key brain region for these maps, exhibits neural population activity that often evolves along nonlinear, low-dimensional manifolds. While cognitive maps have been characterized at the level of cell tunings to spatial location and decorrelations over time, a precise, unsupervised, and quantitative model of how this map forms and morphs at the population level remains elusive due to the large dimensionality and nonlinearity of neural activity. Current dimensionality reduction t
ePoster · Neuroscience