Extended Data Fig. 2: Session-wise rank agreement with objective ground truth validates successful task performance.
From: Distinct neuronal populations in the human brain combine content and context
Left: Boxplot (Q1, median, Q3; whiskers: points within ±1.5 IQR) of session-wise mean Spearman rank correlations between behaviorally determined picture ranks and objectively determined picture ranks for the questions “Bigger?” and “More expensive?”/“Older?”. Grey dots represent individual sessions (N = 50). All session means were significantly greater than zero (p = 6.47 × 10−10, Wilcoxon signed-rank test). Shaded background areas indicate effect size categories. Right: Null distribution of mean correlations across sessions from 1,000 permutations (grey histogram), where picture ranks were randomly shuffled within each session-question pair before averaging. Observed mean shown in red (ρ = 0.760). The observed mean significantly exceeded the permutation null distribution (p < 0.001).
