Participants selected between fruits (yellow dots) that fell with a different distance from their tree location (black dot). Crucially, participants could not learn about the target (yellow dot) location themselves and could only infer the target locations from the predictions (i.e., social advice black dot) from these previous players. Participants were instructed that advisors represented previous players that learnt about the target distribution themselves. Information was given by social advisors that were shown as facial stimuli. During the outcome phase, participants updated their beliefs about the predictor’s performance by inspecting the angular error, that is the distance between the predictor’s estimate (black dot) and true target location (yellow dot). Participants indicated their confidence in the likely accuracy of performance by changing the size of a symmetrical interval around the predictor’s estimate (black dot, confidence phase): a small interval size indicated that participants expected the target to appear close to the predictor’s estimate. On every trial, participants received advice on where to find the target. Participants learned about how well predictors (social advisors ( a) and non-social cues ( b)) estimated the location of a target on the circumference of a circle. Versions only differed in their framing but were matched in their statistical properties. Participants performed a social and non-social version of an information-seeking task.
Institute for Mental Health, School of Psychology, University of Birmingham, United Kingdom.
Centre for Human Brain Health, School of Psychology, University of Birmingham, United Kingdom.Max Planck UCL Centre for Computational Psychiatry and Ageing Research, University College London, United Kingdom.Wellcome Centre for Human Neuroimaging, University College London, United Kingdom.
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