Fig. 5: Modality-specific effective connectivity.

A Model space consisted of 10 biologically plausible models per task (value or control). Models differed in their modulatory connections between nodes of a network comprising 5 ROIs (ROIs: V – Valuation region, S – Sensory region, purple V – vmPFC, red V – Auditory OFC, blue V – Visual OFC, red S – Auditory Sensory Cortex, blue S – Visual Sensory Cortex, see also C). Modulatory connections in red exist during conditions in which an auditory stimulus was selected and those in blue exist during conditions in which a visual stimulus was selected in both intra- and inter-modal conditions. B Exceedance probabilities for all connectivity models in the value and control task. In the value task, Model 6 is the most likely model, with exceedance probability of 0.75. In the control task, the null model, which did not have modulatory connectivity between ROI pairs for any condition was the winning model. C The weights of feedforward (dashed) and feedback (solid) modulatory connections in the winning model of the value task. Connection weights are shown for conditions in which an auditory (red) or a visual (blue) stimulus either in intra-modal or inter-modal conditions (in brackets) was selected. All parameters were significant at posterior probability of P > 0.99.