Fig. 4: nkRL parameters and information-seeking modes.
From: Distinct motivations to seek out information in healthy individuals and problem gamblers
Model fit on all free-choice trials revealed a decrease in the novelty parameter ν in PGs compared to HCs (a), while the knowledge parameter κ was higher in PGs compared to HCs (b). Learning rate α (c) and decision noise β (d) did not differ between the two groups. e The Euclidean distance dv-k between κ and ν was larger in HCs (in blue) than in PGs (in red). f Correlation matrix between nkRL model parameters and task performance Π. P-values are corrected for multiple comparisons (FDR). Both ν and κ positively correlated with Π. Only correlations between Π and model parameters are reported. g Performance Π across ν and κ parameter space. The averaged values of ν and κ for HCs are shown in blue, while in red for PGs. The two averaged values are expressed closer to the two optimal modes (in yellow) (color figure online).
