Topographic Factor Analysis: A Bayesian Model for Inferring Brain Networks from Neural Data
Figure 3
A pattern of voxel activations is observed during each of
trials (
). Each of
shared sources are defined by their centers (
) and widths (
). The voxel activations arise due to the sources being activated to varying amounts during each trial, as specified by
. Shaded nodes indicate observed variables, unshaded nodes indicate hidden variables, and dots indicate hyperparameters.