A Goldilocks theory of cognitive control: Balancing precision and efficiency with low-dimensional control states
MacDowell CJ, Tafazoli S, Buschman TJ
Curr. Opin. Neurobio. 2022. 76.
Cognitive control orchestrates interactions between brain regions, guiding the transformation of information to support contextually appropriate and goal-directed behaviors. In this review, we propose a hierarchical model of cognitive control where low-dimensional control states direct the flow of high-dimensional representations between regions. This allows cognitive control to flexibly adapt to new environments and maintain the representational capacity to capture the richness of the world.