Fig. 6: Pupil dilation during response conflict (I > C) and upregulation (CI > II).
From: Real-world stress resilience is associated with the responsivity of the locus coeruleus

a Mean Pupil dilation during congruent (green) and incongruent trials (red). b Pupil dilation during incongruent trials is significantly larger as compared to congruent trials. Gray shades area indicates sign. difference p < 0.05 (One-sample t test, two-sided, cluster-corrected). Vertical line indicates stimulus onset. c Mean Pupil dilation during CI trials (incongruent trials preceded by congruent trials = dark red) and II trials (incongruent trials preceded by incongruent trials = light orange). d II trials yield significantly enhanced pre-trial pupil dilation as compared to CI trials, indicating the need for noradrenergic upregulation on current CI trials. The gray shaded area indicates significant difference from zero at p < 0.05, (One-sample t test, two-sided, cluster-corrected). Vertical line indicates stimulus onset. e Mean Pupil dilation during CC trials (congruent trials preceded by congruent trials = light green) and IC trials (congruent trials preceded by incongruent trials = dark green). f Pupil dilation for CC trials does not significantly differ from IC trials before or during the current congruent trial, precluding potential light reflex differences (see main text). Error bands represent ±SEM at each timepoint. Source data are provided as a Source Data file.