Discovering learning-induced changes in neural representations from large-scale neural data tensors
N Alex Cayco Gajic · Ecole normale supérieure, Paris
Wed, Jan 24, 2024 · 16:00 UTC
Learning induces changes in neural activity over slow timescales. These changes can be summarized by restructuring neural population data into a three-dimensional array or tensor, of size neurons by time points by trials. Classic dimensionality reduction methods often assume that neural representations are constrained to a fixed low-dimensional latent subspace. Consequently, this view does not capture how the latent subspace could evolve over learning, nor how high-dimensional neural activity could emerge over learning. Furthermore, the link between these empirically-observed changes in neural