marginally significantp = 0.076
Post-hoc analyses revealed marginally significant higher arousal ratings for negative stimuli that were presented for 1000 ms than 200 ms, t (300) = 1.81, p = 0.076, d = 0.21, and no effect of duration for positive stimuli, t (300) = 1.12, p = 0.268, d = 0.13.