Fig. 1.

Task. a In the first part of the experiment—the Learning Task—participants were asked on each trial to choose between two shapes. If they successfully selected the shape associated with the better outcome they received £10 in the gain block and £0 in the loss block. If they were unsuccessful and selected the shape associated with the worse outcome they received £0 in the gain block and lost £10 in the loss block. b In the second part of the experiment—the Delegation Task—participants first chose whether they would like to retain agency and make the choice themselves or delegate the choice to an “artificial advisor” (a computer algorithm). They were presented with the advisor’s success rate and charge, and the pair of figures was shown at the time participants made the delegation choice. Outcomes were not revealed