Extended Data Fig. 8: fMRI effects split by subject and session.
From: Activation and disruption of a neural mechanism for novel choice in monkeys

a, Illustration of effect sizes in each session for key analyses shown separately by subject and GLM. Mean and s.e.m. across sessions. No statistical test was performed. N = 12 sessions for GLMs 1–2, N = 3 sessions for GLM 3, N = 5 sessions for GLM4. b, Key effects plotted session by session (mean and s.e.m. across subjects). The continuous horizontal line represents the absence of an effect. The dotted line is a linear fit. N = 4 subjects. No trend was statistically significant (two-sided t-test GLM 1: t10 = −1.30, P = 0.22; GLM 2: t10 = 0.63, P = 0.54; GLM 4: t3 = 1.57, P = 0.21). Note that the selection of the aOFC ROI for GLM3 (third graph in b) was biased towards finding a temporal trend, because it was based on the effect of the last three sessions of each subject. It was merely included here for completeness.