Supplement: Recurrent Switching Dynamical Systems Models for Multiple Interacting Neural Populations Joshua I. Glaser

As discussed in the main text, there could be many ways to incorporate anatomical priors into our formulation. Here, we demonstrate one example--assuming that brain regions are sparsely connected, and therefore many blocks of the dynamics matrices will be zero. This can be implemented using a block-wise spike-and-slab prior on the dynamics matrices. A.1 Formulation We want a block-sparse prior for dynamics matrices. We break down this matrix into a B B set of blocks, where B is the number of neural populations.