Fig. 2: Behavioral signatures of learning and strategy use.
From: Heterogeneity in strategy use during arbitration between experiential and observational learning
A, B Behavioral evidence for learning behavior for Study 1 (A) and Study 2 (B), calculated as the mean accuracy (choice of correct token) for each of the first 8 trials following a reversal in token values, then averaged across participants. Error bars represent SEM. C, D The proportion of choices consistent with observational learning (OL) versus experiential learning (EL) was calculated out of the trials where OL and EL made different predictions (according to the definitions depicted in Fig. 1. C, D For Study 1 (C) and Study 2 (D). Each dot depicts an individual participant. E, F Main effects of past outcome (EL effect, blue) and of past partner’s action (OL effect, orange) on current participant’s choice were quantified in a mixed-effects generalized linear model (ME-GLM), for Study 1 (E) and Study 2 (F). Bars represent the fixed effect coefficient estimates; error bars represent the standard error associated with those estimates; stars represent the significance of the fixed effects obtained from the ME-GLM (two-sided, all P < 0.001); and each dot is an individual participant (random effect); Study 1: N = 126 independent participants (A, C, E); Study 2: N = 493 independent participants (B, D, F).
