Emergent (a major rewrite of PDP++) is a comprehensive simulation environment for creating complex, sophisticated models of the brain and cognitive processes using neural network models.
C. Peters, F. Reichert, and B. Gläsel. Human Friendly Automation: Arbeit und Künstliche Intelligenz neu denken, Frankfurter Allgemeine Buch, Frankfurt, Germany, 1 edition, (2023)