Participants performed a social and non-social version of an information-seeking task. Versions only differed in their framing but were matched in their statistical properties. Participants learned …
The task consisted of three phases: decision, confidence, and outcome phase. In the decision phase, participants select between two predictors (either social advisors for the social version or …
In the socially framed version of the experiment, participants were instructed that predictors represented previous players who had already performed a different type of behavioural task. In this …
(a) Participants’ interval setting (corresponded more closely to the true predictor performance error angular error) of the social advisor compared to the non-social cue. Changes of mind in …
Source data include data shown in Figure 2a-c.
(a) There was no significant difference in the mean angular error observed between the social and non-social version (mean across angular errors, paired t-test, t(23) = −1.18, p = 0.25). There was …
Panels depict the mapping between observations during the task (A), their statistical properties (B), and subjective beliefs about these properties derived with Bayes’ rule (C, D). (A) A …
(a) We tested whether there are differences in the belief update made about social or non-social information. We hypothesized belief updates to be inherently more uncertain (i.e., wider …
This figure relates to Figure 3 in the main text. (a) Here, we show an example of model-derived estimates of uncertainty and accuracy for one participant who selects the same predictor multiple …
We used a region-of-interest approach based on two independent a priori regions of interest (ROIs) in dmPFC (a, left) and pTPJ (b, left). Activation in both areas covary with the combination of …
Source data include data shown in Figure 4a (contrast: current + past interval setting in dorsomedial prefrontal cortex [dmPFC] region of interest [ROI]), Figure 4b (contrast: current + past interval setting in posterior temporoparietal junction [pTPJ] ROI), Figure 4e (separate effects of current and past interval setting in dmPFC ROI for social condition only), Figure 4e (separate effects of current and past interval setting in pTPJ ROI for social condition only), Figure 4h (Exemplar Discriminability Index [EDI] values for dmPFC ROI), and Figure 4h (EDI values for pTPJ ROI).
Source data include values for both social and non-social conditions.
For visualization purposes, brain activations are shown with different z-threshold. All z-thresholds at which we show the activation are denoted under each brain picture. Whole-brain effects are …
This panel relates to Figure 2e, f and shows that, in contrast to effects found for social predictors, there was no significant difference between the effects of current and past interval settings …
We performed a whole-brain searchlight analysis (N = 16) to test for the specificity of dorsomedial prefrontal cortex (dmPFC) and posterior temporoparietal junction (pTPJ) in encoding social …
We used two different sets of stimuli, facial stimuli in the social condition and fruit stimuli in the non-social conditions. We tested whether observed differences between conditions can be …
Univariate whole-brain results.
Relates to Figure 4 and Figure 4—figure supplement 1. Z-values and coordinates for exploratory fMRI-GLM1 for social and non-social conditions (family-wise error [FWE] cluster corrected with z > 2.3, p < 0.05).