Fig. 4: Neural implementation of performance-based arbitration.
From: Computational and neural mechanisms underlying the influence of action affordances on value learning
a Affordance-compatibility scores of the chosen action correlated with the high-level visual area including V3 and V4 in the left occipital lobe (b) The chosen action value was significantly identified in the mPFC. c Action selection probabilities of the chosen action were found in various regions of the cortical grasping circuit. d Performance of the value-based decision-making signals (e) BOLD signals of the performance of the affordance-based decision-making. (f) The fMRI correlates of the difference between the performances of two systems (Perfaff − Perfq), which is directly related to the arbitration weight. g PPE signals for tracking performances of the two systems were identified in the striatum. All results were cluster-level FWER-corrected at p < 0.05 using a cluster-defining threshold of z = 3.1 (corresponding to p < 0.001, uncorrected).
