Active Inference, The Learn Arc — Part 6: Chapter 5 — The Cortex as a Factor Graph, Neuromodulators as Precision Knobs

This article, part of 'The Learn Arc' series on Active Inference, details how abstract mathematical concepts translate into actual neural circuits. It posits the cortex functions as a physical factor graph, where cortical columns are factor nodes and white-matter fibres act as messages in a message passing computation.