In a new paper published in Neuron, Tomov and his co-authors used functional magnetic resonance (fMRI) to compare their algorithmic theory against real-world imaging. Thomas Pouncy, another doctoral researcher in Gershman’s lab, outlined in 2021 a more complex, theory-based RL system. A computational theory-based RL model was introduced in a subsequent paper by MIT postdoctoral researcher Pedro Tsividis. The researchers specifically expected to find evidence of theory-based models in the orbitofrontal cortex. Now information flows bottom-up, from posterior regions to frontal regions.”Tomov has been studying theory-based RL with Gershman for four years.
