Figure 2. Behavioural results and model simulations.

(a) Correct choice rate during the learning test. (b) Choice rate in the post-learning test. G₇₅ and G₂₅: options associated with 75% and 25% per cent of winning 0.5€, respectively; L₇₅ and L₂₅: options associated with 75% and 25% per cent of losing 0.5€, respectively. EV: absolute expected value (Probability(outcome) × Magnitude(outcome)) in a single trial. The values +37.5¢ and −37.5¢ correspond G₇₅ and the L₇₅ options, respectively. In a and b coloured bars represent the actual data and black (RELATIVE) and white (ABSOLUTE) dots represent the model simulated data. (c) Reward minus punishment correct choice rate during the learning test. (d) G₂₅ minus L₂₅ choice rate during the post learning test. *P<0.05 one sample t-test; NS, not significant (N=28). Error bars represent s.e.m.