Fig. S1.

Behavioral performance and stability of social preferences. (A) Percentages of incomplete trials (mean ± SEM) during the social reward–allocation task. Shown are aborted (incomplete) trials across all trial types. A trial was considered incomplete if the animals failed to choose a target on decision trials or failed to initiate or maintain fixation after cue onset on cued trials. Such trials were not included in the main analysis. (B) Stable behavioral preference indices across different reward values at stake. Preference indices are plotted as a function of four different juice sizes (% of max possible on a given session) for actor MY and MS.