Figure 9.

Timecourse of attentional control. (A) Early on in a trial, attention is drawn by information. There is a strong pull by information about expected value, as calculated by Bayesian updating. The y-axis shows how often participants' saccades coincide with the information-seeking prediction. This falls to chance (33%) after the sixth acquisition in a trial. There is a weak effect of information about risk. Asterisks denote acquisitions when gaze was significantly drawn toward the highest information, relative to chance (p < 0.05). (B) Participants increasingly tend to fixate on the option with higher EV through a trial. For both (A,B), EV and risk estimates for participants' fixation sequences π(EV |e₁, e₂ … e_i) were calculated using Bayesian updating rules using σ = 15.